Merge branch 'master' into errors-module

.appveyor.yml

@@ -12,7 +12,7 @@ environment:
 
     matrix:
         # For Python versions available on Appveyor, see
-        # http://www.appveyor.com/docs/installed-software#python
+        # https://www.appveyor.com/docs/build-environment/
       - {PYVER: "27", PYTHON_ARCH: "32"}
       - {PYVER: "27", PYTHON_ARCH: "64"}
       - {PYVER: "34", PYTHON_ARCH: "32"}
@@ -21,6 +21,9 @@ environment:
       - {PYVER: "35", PYTHON_ARCH: "64"}
       - {PYVER: "36", PYTHON_ARCH: "32"}
       - {PYVER: "36", PYTHON_ARCH: "64"}
+      - {PYVER: "37", PYTHON_ARCH: "32"}
+      - {PYVER: "37", PYTHON_ARCH: "64"}
+
 
     OPENSSL_VERSION: "1_0_2n"
     POSTGRES_VERSION: "10_1"
@@ -64,6 +67,7 @@ init:
     - IF "%PYVER%"=="34" SET VS_VER=10.0
     - IF "%PYVER%"=="35" SET VS_VER=14.0
     - IF "%PYVER%"=="36" SET VS_VER=14.0
+    - IF "%PYVER%"=="37" SET VS_VER=14.0
 
     - IF "%VS_VER%"=="10.0" IF "%PYTHON_ARCH%"=="64" SET DISTUTILS_USE_SDK=1
 
@@ -78,7 +82,7 @@ init:
     - "%PYTHON%\\python -c \"import sys; print('64bit: ' + str(sys.maxsize > 2**32))\""
 
     # Get & Install NASM
-    #- curl -L -o nasminst.exe http://www.nasm.us/pub/nasm/releasebuilds/2.12.02/win64/nasm-2.12.02-installer-x64.exe && start /wait nasminst.exe /S
+    #- curl -L -o nasminst.exe https://www.nasm.us/pub/nasm/releasebuilds/2.12.02/win64/nasm-2.12.02-installer-x64.exe && start /wait nasminst.exe /S
     #- SET PATH="C:\Program Files (x86)\nasm;%PATH%"
 
     # Fix problem with VS2008 Express and 64bit builds

.travis.yml

@@ -1,15 +1,17 @@
 # Travis CI configuration file for psycopg2
 
-dist: trusty
+dist: xenial
 sudo: required
 language: python
 
-python:
+matrix:
-  - 2.7
+  include:
-  - 3.7-dev
+    - python: 2.7
-  - 3.6
+    - python: 3.7
-  - 3.5
+    - python: 3.6
-  - 3.4
+    - python: 3.5
+    - python: 3.4
+      dist: trusty
 
 install:
   - pip install -U pip setuptools wheel

LICENSE

@@ -25,7 +25,7 @@ statement from all source files in the program, then also delete it here.
 
 You should have received a copy of the GNU Lesser General Public License
 along with psycopg2 (see the doc/ directory.)
-If not, see <http://www.gnu.org/licenses/>.
+If not, see <https://www.gnu.org/licenses/>.
 
 
 Alternative licenses

NEWS

@@ -9,8 +9,18 @@ New features:
 - Added `~psycopg2.errors` module. Every PostgreSQL error is converted into
   a specific exception class (:ticket:`#682`).
 - Added `~psycopg2.extensions.encrypt_password()` function (:ticket:`#576`).
+- Added `~psycopg2.extensions.Column.table_oid` and
+  `~psycopg2.extensions.Column.table_column` attributes on `cursor.description`
+  items (:ticket:`#661`).
+- Added `connection.host` property (:ticket:`#726`).
+- `~psycopg2.sql.Identifier` can represent qualified names in SQL composition
+  (:ticket:`#732`).
+- `!str()` on `~psycopg2.extras.Range` produces a human-readable representation
+  (:ticket:`#773`).
 - `~psycopg2.extras.DictCursor` and `~psycopg2.extras.RealDictCursor` rows
   maintain columns order (:ticket:`#177`).
+- Added `!severity_nonlocalized` attribute on the
+  `~psycopg2.extensions.Diagnostics` object (:ticket:`#783`).
 
 Other changes:
 
@@ -23,6 +33,18 @@ Other changes:
   install``.
 
 
+What's new in psycopg 2.7.6
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+- Close named cursors if exist, even if `~cursor.execute()` wasn't called
+  (:ticket:`#746`).
+- Fixed building on modern FreeBSD versions with Python 3.7 (:ticket:`#755`).
+- Fixed hang trying to :sql:`COPY` via `~cursor.execute()` (:ticket:`#781`).
+- Fixed segfault accessing the `connection.readonly` and
+  `connection.deferrable` repeatedly (:ticket:`#790`).
+- `~psycopg2.errorcodes` map updated to PostgreSQL 11.
+
+
 What's new in psycopg 2.7.5
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
@@ -351,7 +373,7 @@ Other changes:
 - Dropped support for Python 2.4. Please use Psycopg 2.4.x if you need it.
 - `~psycopg2.errorcodes` map updated to PostgreSQL 9.2.
 - Dropped Zope adapter from source repository. ZPsycopgDA now has its own
-  project at <http://github.com/psycopg/ZPsycopgDA>.
+  project at <https://github.com/psycopg/ZPsycopgDA>.
 
 
 What's new in psycopg 2.4.6

doc/src/advanced.rst

@@ -156,7 +156,7 @@ geometric type:
 
 
 .. |point| replace:: :sql:`point`
-.. _point: http://www.postgresql.org/docs/current/static/datatype-geometric.html#DATATYPE-GEOMETRIC
+.. _point: https://www.postgresql.org/docs/current/static/datatype-geometric.html#DATATYPE-GEOMETRIC
 
 The above function call results in the SQL command::
 
@@ -259,9 +259,9 @@ documentation), you should keep the connection in `~connection.autocommit`
 mode if you wish to receive or send notifications in a timely manner.
 
 .. |LISTEN| replace:: :sql:`LISTEN`
-.. _LISTEN: http://www.postgresql.org/docs/current/static/sql-listen.html
+.. _LISTEN: https://www.postgresql.org/docs/current/static/sql-listen.html
 .. |NOTIFY| replace:: :sql:`NOTIFY`
-.. _NOTIFY: http://www.postgresql.org/docs/current/static/sql-notify.html
+.. _NOTIFY: https://www.postgresql.org/docs/current/static/sql-notify.html
 
 Notifications are received after every query execution. If the user is
 interested in receiving notifications but not in performing any query, the
@@ -375,7 +375,7 @@ completely non-blocking connection attempt: see the libpq documentation for
 |PQconnectStart|_.
 
 .. |PQconnectStart| replace:: `!PQconnectStart()`
-.. _PQconnectStart: http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PQCONNECTSTARTPARAMS
+.. _PQconnectStart: https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PQCONNECTSTARTPARAMS
 
 The same loop should be also used to perform nonblocking queries: after
 sending a query via `~cursor.execute()` or `~cursor.callproc()`, call
@@ -484,14 +484,14 @@ psycopg2 scope, as the callback can be tied to the libraries' implementation
 details. You can check the `psycogreen`_ project for further informations and
 resources about the topic.
 
-.. _coroutine: http://en.wikipedia.org/wiki/Coroutine
+.. _coroutine: https://en.wikipedia.org/wiki/Coroutine
 .. _greenlet: https://pypi.org/project/greenlet/
-.. _green threads: http://en.wikipedia.org/wiki/Green_threads
+.. _green threads: https://en.wikipedia.org/wiki/Green_threads
-.. _Eventlet: http://eventlet.net/
+.. _Eventlet: https://eventlet.net/
 .. _gevent: http://www.gevent.org/
-.. _SQLAlchemy: http://www.sqlalchemy.org/
+.. _SQLAlchemy: https://www.sqlalchemy.org/
 .. _psycogreen: http://bitbucket.org/dvarrazzo/psycogreen/
-.. __: http://www.postgresql.org/docs/current/static/libpq-async.html
+.. __: https://www.postgresql.org/docs/current/static/libpq-async.html
 
 .. warning::
 
@@ -536,7 +536,7 @@ Server version 9.4 adds a new feature called *Logical Replication*.
 
    - PostgreSQL `Streaming Replication Protocol`__
 
-   .. __: http://www.postgresql.org/docs/current/static/protocol-replication.html
+   .. __: https://www.postgresql.org/docs/current/static/protocol-replication.html
 
 
 Logical replication Quick-Start

doc/src/conf.py

@@ -61,9 +61,8 @@ except ImportError:
     release = version
 
 intersphinx_mapping = {
-    'py': ('https://docs.python.org/2', None),
+    'py': ('https://docs.python.org/3', None),
-    'py3': ('https://docs.python.org/3', None),
+}
-    }
 
 # Pattern to generate links to the bug tracker
 ticket_url = 'https://github.com/psycopg/psycopg2/issues/%s'
@@ -117,12 +116,12 @@ todo_include_todos = False
 rst_epilog = """
 .. |DBAPI| replace:: DB API 2.0
 
-.. _DBAPI: http://www.python.org/dev/peps/pep-0249/
+.. _DBAPI: https://www.python.org/dev/peps/pep-0249/
 
 .. _transaction isolation level:
-    http://www.postgresql.org/docs/current/static/transaction-iso.html
+    https://www.postgresql.org/docs/current/static/transaction-iso.html
 
-.. _mx.DateTime: http://www.egenix.com/products/python/mxBase/mxDateTime/
+.. _mx.DateTime: https://www.egenix.com/products/python/mxBase/mxDateTime/
 
 .. |MVCC| replace:: :abbr:`MVCC (Multiversion concurrency control)`
 """

doc/src/connection.rst

@@ -198,7 +198,7 @@ The ``connection`` class
         .. seealso:: the |PREPARE TRANSACTION|_ PostgreSQL command.
 
         .. |PREPARE TRANSACTION| replace:: :sql:`PREPARE TRANSACTION`
-        .. _PREPARE TRANSACTION: http://www.postgresql.org/docs/current/static/sql-prepare-transaction.html
+        .. _PREPARE TRANSACTION: https://www.postgresql.org/docs/current/static/sql-prepare-transaction.html
 
 
     .. index::
@@ -224,7 +224,7 @@ The ``connection`` class
         .. seealso:: the |COMMIT PREPARED|_ PostgreSQL command.
 
         .. |COMMIT PREPARED| replace:: :sql:`COMMIT PREPARED`
-        .. _COMMIT PREPARED: http://www.postgresql.org/docs/current/static/sql-commit-prepared.html
+        .. _COMMIT PREPARED: https://www.postgresql.org/docs/current/static/sql-commit-prepared.html
 
 
     .. index::
@@ -246,7 +246,7 @@ The ``connection`` class
         .. seealso:: the |ROLLBACK PREPARED|_ PostgreSQL command.
 
         .. |ROLLBACK PREPARED| replace:: :sql:`ROLLBACK PREPARED`
-        .. _ROLLBACK PREPARED: http://www.postgresql.org/docs/current/static/sql-rollback-prepared.html
+        .. _ROLLBACK PREPARED: https://www.postgresql.org/docs/current/static/sql-rollback-prepared.html
 
 
     .. index::
@@ -267,7 +267,7 @@ The ``connection`` class
         transactions initiated by a program using such driver should be
         unpacked correctly.
 
-        .. __: http://jdbc.postgresql.org/
+        .. __: https://jdbc.postgresql.org/
 
         Xids returned by `!tpc_recover()` also have extra attributes
         `~psycopg2.extensions.Xid.prepared`, `~psycopg2.extensions.Xid.owner`,
@@ -277,7 +277,7 @@ The ``connection`` class
         .. seealso:: the |pg_prepared_xacts|_ system view.
 
         .. |pg_prepared_xacts| replace:: `pg_prepared_xacts`
-        .. _pg_prepared_xacts: http://www.postgresql.org/docs/current/static/view-pg-prepared-xacts.html
+        .. _pg_prepared_xacts: https://www.postgresql.org/docs/current/static/view-pg-prepared-xacts.html
 
 
 
@@ -309,7 +309,7 @@ The ``connection`` class
         |PQcancel|_.
 
         .. |PQcancel| replace:: `!PQcancel()`
-        .. _PQcancel: http://www.postgresql.org/docs/current/static/libpq-cancel.html#LIBPQ-PQCANCEL
+        .. _PQcancel: https://www.postgresql.org/docs/current/static/libpq-cancel.html#LIBPQ-PQCANCEL
 
         .. versionadded:: 2.3
 
@@ -325,10 +325,10 @@ The ``connection`` class
         available for recover.
 
         .. |RESET| replace:: :sql:`RESET`
-        .. _RESET: http://www.postgresql.org/docs/current/static/sql-reset.html
+        .. _RESET: https://www.postgresql.org/docs/current/static/sql-reset.html
 
         .. |SET SESSION AUTHORIZATION| replace:: :sql:`SET SESSION AUTHORIZATION`
-        .. __: http://www.postgresql.org/docs/current/static/sql-set-session-authorization.html
+        .. __: https://www.postgresql.org/docs/current/static/sql-set-session-authorization.html
 
         .. versionadded:: 2.0.12
 
@@ -366,7 +366,7 @@ The ``connection`` class
             `autocommit` attribute.
 
         .. _isolation level:
-            http://www.postgresql.org/docs/current/static/transaction-iso.html
+            https://www.postgresql.org/docs/current/static/transaction-iso.html
 
         Arguments set to `!None` (the default for all) will not be changed.
         The parameters *isolation_level*, *readonly* and *deferrable* also
@@ -376,11 +376,11 @@ The ``connection`` class
         |default_transaction_read_only|__, |default_transaction_deferrable|__.
 
         .. |default_transaction_isolation| replace:: :sql:`default_transaction_isolation`
-        .. __: http://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-DEFAULT-TRANSACTION-ISOLATION
+        .. __: https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-DEFAULT-TRANSACTION-ISOLATION
         .. |default_transaction_read_only| replace:: :sql:`default_transaction_read_only`
-        .. __: http://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-DEFAULT-TRANSACTION-READ-ONLY
+        .. __: https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-DEFAULT-TRANSACTION-READ-ONLY
         .. |default_transaction_deferrable| replace:: :sql:`default_transaction_deferrable`
-        .. __: http://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-DEFAULT-TRANSACTION-DEFERRABLE
+        .. __: https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-DEFAULT-TRANSACTION-DEFERRABLE
 
         The function must be invoked with no transaction in progress.
 
@@ -388,7 +388,7 @@ The ``connection`` class
             of the transaction parameters in the server.
 
             .. |SET TRANSACTION| replace:: :sql:`SET TRANSACTION`
-            .. _SET TRANSACTION: http://www.postgresql.org/docs/current/static/sql-set-transaction.html
+            .. _SET TRANSACTION: https://www.postgresql.org/docs/current/static/sql-set-transaction.html
 
         .. versionadded:: 2.4.2
 
@@ -534,7 +534,7 @@ The ``connection`` class
         is the encoding defined by the database. It should be one of the
         `characters set supported by PostgreSQL`__
 
-        .. __: http://www.postgresql.org/docs/current/static/multibyte.html
+        .. __: https://www.postgresql.org/docs/current/static/multibyte.html
 
 
     .. index::
@@ -568,7 +568,7 @@ The ``connection`` class
         configuration parameters`__ such as ``log_statement``,
         ``client_min_messages``, ``log_min_duration_statement`` etc.
 
-        .. __: http://www.postgresql.org/docs/current/static/runtime-config-logging.html
+        .. __: https://www.postgresql.org/docs/current/static/runtime-config-logging.html
 
 
     .. attribute:: notifies
@@ -599,6 +599,24 @@ The ``connection`` class
         .. versionadded:: 2.5
 
 
+    .. index::
+        pair: Backend; Host
+
+    .. attribute:: host
+
+        The server host name of the active connection.
+
+        This can be a host name, an IP address, or a directory path if the
+        connection is via Unix socket. (The path case can be distinguished
+        because it will always be an absolute path, beginning with ``/``.)
+
+        .. seealso:: libpq docs for `PQhost()`__ for details.
+
+            .. __: https://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQHOST
+
+        .. versionadded:: 2.8.0
+
+
     .. index::
         pair: Backend; PID
 
@@ -612,7 +630,7 @@ The ``connection`` class
 
         .. seealso:: libpq docs for `PQbackendPID()`__ for details.
 
-            .. __: http://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQBACKENDPID
+            .. __: https://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQBACKENDPID
 
         .. versionadded:: 2.0.8
 
@@ -633,7 +651,7 @@ The ``connection`` class
 
         .. seealso:: libpq docs for `PQparameterStatus()`__ for details.
 
-            .. __: http://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQPARAMETERSTATUS
+            .. __: https://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQPARAMETERSTATUS
 
         .. versionadded:: 2.0.12
 
@@ -656,7 +674,7 @@ The ``connection`` class
 
         .. seealso:: libpq docs for `PQconninfo()`__ for details.
 
-            .. __: http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PQCONNINFO
+            .. __: https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PQCONNINFO
 
         .. versionadded:: 2.7
 
@@ -673,7 +691,7 @@ The ``connection`` class
 
         .. seealso:: libpq docs for `PQtransactionStatus()`__ for details.
 
-            .. __: http://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQTRANSACTIONSTATUS
+            .. __: https://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQTRANSACTIONSTATUS
 
 
     .. index::
@@ -688,7 +706,7 @@ The ``connection`` class
 
         .. seealso:: libpq docs for `PQprotocolVersion()`__ for details.
 
-            .. __: http://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQPROTOCOLVERSION
+            .. __: https://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQPROTOCOLVERSION
 
         .. versionadded:: 2.0.12
 
@@ -706,7 +724,7 @@ The ``connection`` class
 
         .. seealso:: libpq docs for `PQserverVersion()`__ for details.
 
-            .. __: http://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQSERVERVERSION
+            .. __: https://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQSERVERVERSION
 
         .. versionadded:: 2.0.12
 
@@ -743,7 +761,7 @@ The ``connection`` class
             `~psycopg2.extensions.lobject` to be instantiated.
 
         .. |lo_import| replace:: `!lo_import()`
-        .. _lo_import: http://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-IMPORT
+        .. _lo_import: https://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-IMPORT
 
         Available values for *mode* are:
 

doc/src/cursor.rst

@@ -37,46 +37,49 @@ The ``cursor`` class
 
     .. attribute:: description
 
-        This read-only attribute is a sequence of 7-item sequences.
+        Read-only attribute describing the result of a query.  It is a
+        sequence of `~psycopg2.extensions.Column` instances, each one
+        describing one result column in order. The attribute is `!None` for
+        operations that do not return rows or if the cursor has not had an
+        operation invoked via the |execute*|_ methods yet.
 
-        Each of these sequences is a named tuple (a regular tuple if
+        For compatibility with the DB-API, every object can be unpacked as a
-        :func:`collections.namedtuple` is not available) containing information
+        7-items sequence: the attributes retuned this way are the following.
-        describing one result column:
+        For further details and other attributes available check the
+        `~psycopg2.extensions.Column` documentation.
 
-        0.  `!name`: the name of the column returned.
+        0.  `~psycopg2.extensions.Column.name`: the name of the column returned.
-        1.  `!type_code`: the PostgreSQL OID of the column. You can use the
-            |pg_type|_ system table to get more informations about the type.
-            This is the value used by Psycopg to decide what Python type use
-            to represent the value.  See also
-            :ref:`type-casting-from-sql-to-python`.
-        2.  `!display_size`: the actual length of the column in bytes.
-            Obtaining this value is computationally intensive, so it is
-            always `!None` unless the :envvar:`PSYCOPG_DISPLAY_SIZE` parameter
-            is set at compile time. See also PQgetlength_.
-        3.  `!internal_size`: the size in bytes of the column associated to
-            this column on the server. Set to a negative value for
-            variable-size types See also PQfsize_.
-        4.  `!precision`: total number of significant digits in columns of
-            type |NUMERIC|_. `!None` for other types.
-        5.  `!scale`: count of decimal digits in the fractional part in
-            columns of type |NUMERIC|. `!None` for other types.
-        6.  `!null_ok`: always `!None` as not easy to retrieve from the libpq.
 
-        This attribute will be `!None` for operations that do not return rows
+        1.  `~psycopg2.extensions.Column.type_code`: the PostgreSQL OID of the
-        or if the cursor has not had an operation invoked via the
+            column.
-        |execute*|_ methods yet.
 
-        .. |pg_type| replace:: :sql:`pg_type`
+        2.  `~psycopg2.extensions.Column.display_size`: the actual length of
-        .. _pg_type: http://www.postgresql.org/docs/current/static/catalog-pg-type.html
+            the column in bytes.
-        .. _PQgetlength: http://www.postgresql.org/docs/current/static/libpq-exec.html#LIBPQ-PQGETLENGTH
+
-        .. _PQfsize: http://www.postgresql.org/docs/current/static/libpq-exec.html#LIBPQ-PQFSIZE
+        3.  `~psycopg2.extensions.Column.internal_size`: the size in bytes of
-        .. _NUMERIC: http://www.postgresql.org/docs/current/static/datatype-numeric.html#DATATYPE-NUMERIC-DECIMAL
+            the column associated to this column on the server.
-        .. |NUMERIC| replace:: :sql:`NUMERIC`
+
+        4.  `~psycopg2.extensions.Column.precision`: total number of
+            significant digits in columns of type |NUMERIC|. `!None`
+            for other types.
+
+        5.  `~psycopg2.extensions.Column.scale`: count of decimal digits in
+            the fractional part in columns of type |NUMERIC|. `!None`
+            for other types.
+
+        6.  `~psycopg2.extensions.Column.null_ok`: always `!None` as not easy
+            to retrieve from the libpq.
 
         .. versionchanged:: 2.4
             if possible, columns descriptions are named tuple instead of
             regular tuples.
 
+        .. versionchanged:: 2.8
+            columns descriptions are instances of `!Column`, exposing extra
+            attributes.
+
+        .. |NUMERIC| replace:: :sql:`NUMERIC`
+
     .. method:: close()
 
         Close the cursor now (rather than whenever `del` is executed).
@@ -129,7 +132,7 @@ The ``cursor`` class
         backward scroll (see the |declare-notes|__).
 
         .. |declare-notes| replace:: :sql:`DECLARE` notes
-        .. __: http://www.postgresql.org/docs/current/static/sql-declare.html#SQL-DECLARE-NOTES
+        .. __: https://www.postgresql.org/docs/current/static/sql-declare.html#SQL-DECLARE-NOTES
 
         .. note::
 
@@ -430,10 +433,10 @@ The ``cursor`` class
             more flexibility.
 
         .. |CREATE-TABLE| replace:: :sql:`CREATE TABLE`
-        .. __: http://www.postgresql.org/docs/current/static/sql-createtable.html
+        .. __: https://www.postgresql.org/docs/current/static/sql-createtable.html
 
         .. |INSERT-RETURNING| replace:: :sql:`INSERT ... RETURNING`
-        .. __: http://www.postgresql.org/docs/current/static/sql-insert.html
+        .. __: https://www.postgresql.org/docs/current/static/sql-insert.html
 
 
     .. attribute:: query
@@ -620,7 +623,7 @@ The ``cursor`` class
             ...
 
         .. |COPY| replace:: :sql:`COPY`
-        .. __: http://www.postgresql.org/docs/current/static/sql-copy.html
+        .. __: https://www.postgresql.org/docs/current/static/sql-copy.html
 
         .. versionadded:: 2.0.6
 

doc/src/errorcodes.rst

@@ -39,7 +39,7 @@ From PostgreSQL documentation:
 
 .. seealso:: `PostgreSQL Error Codes table`__
 
-    .. __: http://www.postgresql.org/docs/current/static/errcodes-appendix.html#ERRCODES-TABLE
+    .. __: https://www.postgresql.org/docs/current/static/errcodes-appendix.html#ERRCODES-TABLE
 
 
 An example of the available constants defined in the module:
@@ -50,7 +50,7 @@ An example of the available constants defined in the module:
     '42P01'
 
 Constants representing all the error values defined by PostgreSQL versions
-between 8.1 and 10 are included in the module.
+between 8.1 and 11 are included in the module.
 
 
 .. autofunction:: lookup(code)

doc/src/extensions.rst

@@ -94,7 +94,7 @@ introspection etc.
         The method uses the efficient |lo_export|_ libpq function.
 
         .. |lo_export| replace:: `!lo_export()`
-        .. _lo_export: http://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-EXPORT
+        .. _lo_export: https://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-EXPORT
 
 
     .. method:: seek(offset, whence=0)
@@ -125,7 +125,7 @@ introspection etc.
         libpq function.
 
         .. |lo_truncate| replace:: `!lo_truncate()`
-        .. _lo_truncate: http://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-TRUNCATE
+        .. _lo_truncate: https://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-TRUNCATE
 
         .. versionadded:: 2.2.0
 
@@ -154,6 +154,80 @@ introspection etc.
         Close the object and remove it from the database.
 
 
+.. class:: Column
+
+    Description of one result column, exposed as items of the
+    `cursor.description` sequence.
+
+    .. versionadded:: 2.8
+
+        in previous version the `!description` attribute was a sequence of
+        simple tuples or namedtuples.
+
+    .. attribute:: name
+
+        The name of the column returned.
+
+    .. attribute:: type_code
+
+        The PostgreSQL OID of the column. You can use the |pg_type|_ system
+        table to get more informations about the type.  This is the value used
+        by Psycopg to decide what Python type use to represent the value.  See
+        also :ref:`type-casting-from-sql-to-python`.
+
+    .. attribute:: display_size
+
+        The actual length of the column in bytes.  Obtaining this value is
+        computationally intensive, so it is always `!None` unless the
+        :envvar:`PSYCOPG_DISPLAY_SIZE` parameter is set at compile time. See
+        also PQgetlength_.
+
+    .. attribute:: internal_size
+
+        The size in bytes of the column associated to this column on the
+        server. Set to a negative value for variable-size types See also
+        PQfsize_.
+
+    .. attribute:: precision
+
+        Total number of significant digits in columns of type |NUMERIC|_.
+        `!None` for other types.
+
+    .. attribute:: scale
+
+        Count of decimal digits in the fractional part in columns of type
+        |NUMERIC|. `!None` for other types.
+
+    .. attribute:: null_ok
+
+        Always `!None` as not easy to retrieve from the libpq.
+
+    .. attribute:: table_oid
+
+        The oid of the table from which the column was fetched (matching
+        :sql:`pg_class.oid`). `!None` if the column is not a simple reference
+        to a table column. See also PQftable_.
+
+        .. versionadded:: 2.8
+
+    .. attribute:: table_column
+
+        The number of the column (within its table) making up the result
+        (matching :sql:`pg_attribute.attnum`, so it will start from 1).
+        `!None` if the column is not a simple reference to a table column. See
+        also PQftablecol_.
+
+        .. versionadded:: 2.8
+
+    .. |pg_type| replace:: :sql:`pg_type`
+    .. _pg_type: https://www.postgresql.org/docs/current/static/catalog-pg-type.html
+    .. _PQgetlength: https://www.postgresql.org/docs/current/static/libpq-exec.html#LIBPQ-PQGETLENGTH
+    .. _PQfsize: https://www.postgresql.org/docs/current/static/libpq-exec.html#LIBPQ-PQFSIZE
+    .. _PQftable: https://www.postgresql.org/docs/current/static/libpq-exec.html#LIBPQ-PQFTABLE
+    .. _PQftablecol: https://www.postgresql.org/docs/current/static/libpq-exec.html#LIBPQ-PQFTABLECOL
+    .. _NUMERIC: https://www.postgresql.org/docs/current/static/datatype-numeric.html#DATATYPE-NUMERIC-DECIMAL
+    .. |NUMERIC| replace:: :sql:`NUMERIC`
+
 .. autoclass:: Notify(pid, channel, payload='')
     :members: pid, channel, payload
 
@@ -186,6 +260,7 @@ introspection etc.
         message_primary
         schema_name
         severity
+        severity_nonlocalized
         source_file
         source_function
         source_line
@@ -198,6 +273,9 @@ introspection etc.
         not all the fields are available for all the errors and for all the
         server versions.
 
+        .. versionadded:: 2.8
+            The `!severity_nonlocalized` attribute.
+
 
 
 .. _sql-adaptation-objects:
@@ -423,8 +501,8 @@ details.
     Used by Psycopg when adapting or casting unicode strings. See
     :ref:`unicode-handling`.
 
-    .. __: http://www.postgresql.org/docs/current/static/multibyte.html
+    .. __: https://www.postgresql.org/docs/current/static/multibyte.html
-    .. __: http://docs.python.org/library/codecs.html#standard-encodings
+    .. __: https://docs.python.org/library/codecs.html#standard-encodings
 
 
 
@@ -497,7 +575,7 @@ Other functions
 
     .. seealso:: libpq docs for `PQlibVersion()`__.
 
-        .. __: http://www.postgresql.org/docs/current/static/libpq-misc.html#LIBPQ-PQLIBVERSION
+        .. __: https://www.postgresql.org/docs/current/static/libpq-misc.html#LIBPQ-PQLIBVERSION
 
 
 .. function:: make_dsn(dsn=None, \*\*kwargs)
@@ -531,7 +609,7 @@ Other functions
     `connection URIs`__ are only supported from libpq 9.2).  Raise
     `~psycopg2.ProgrammingError` if the *dsn* is not valid.
 
-    .. __: http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
+    .. __: https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
 
     Example::
 
@@ -545,7 +623,7 @@ Other functions
 
     .. seealso:: libpq docs for `PQconninfoParse()`__.
 
-        .. __: http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PQCONNINFOPARSE
+        .. __: https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PQCONNINFOPARSE
 
 
 .. function:: quote_ident(str, scope)
@@ -559,7 +637,7 @@ Other functions
 
     .. seealso:: libpq docs for `PQescapeIdentifier()`__
 
-        .. __: http://www.postgresql.org/docs/current/static/libpq-exec.html#LIBPQ-PQESCAPEIDENTIFIER
+        .. __: https://www.postgresql.org/docs/current/static/libpq-exec.html#LIBPQ-PQESCAPEIDENTIFIER
 
 
 .. method:: encrypt_password(password, user, scope=None, algorithm=None)
@@ -644,7 +722,7 @@ methods.  The level can be set to one of the following constants:
     .. seealso:: `Read Committed Isolation Level`__ in PostgreSQL
         documentation.
 
-        .. __: http://www.postgresql.org/docs/current/static/transaction-iso.html#XACT-READ-COMMITTED
+        .. __: https://www.postgresql.org/docs/current/static/transaction-iso.html#XACT-READ-COMMITTED
 
 .. data:: ISOLATION_LEVEL_REPEATABLE_READ
 
@@ -668,7 +746,7 @@ methods.  The level can be set to one of the following constants:
     .. seealso:: `Repeatable Read Isolation Level`__ in PostgreSQL
         documentation.
 
-        .. __: http://www.postgresql.org/docs/current/static/transaction-iso.html#XACT-REPEATABLE-READ
+        .. __: https://www.postgresql.org/docs/current/static/transaction-iso.html#XACT-REPEATABLE-READ
 
 .. data:: ISOLATION_LEVEL_SERIALIZABLE
 
@@ -687,7 +765,7 @@ methods.  The level can be set to one of the following constants:
 
     .. seealso:: `Serializable Isolation Level`__ in PostgreSQL documentation.
 
-        .. __: http://www.postgresql.org/docs/current/static/transaction-iso.html#XACT-SERIALIZABLE
+        .. __: https://www.postgresql.org/docs/current/static/transaction-iso.html#XACT-SERIALIZABLE
 
 .. data:: ISOLATION_LEVEL_DEFAULT
 

doc/src/extras.rst

@@ -542,10 +542,10 @@ fields to JSON) you can use the `register_json()` function.
 The Python :py:mod:`json` module is used by default to convert Python objects
 to JSON and to parse data from the database.
 
-.. _JSON: http://www.json.org/
+.. _JSON: https://www.json.org/
 .. |pgjson| replace:: :sql:`json`
 .. |jsonb| replace:: :sql:`jsonb`
-.. _pgjson: http://www.postgresql.org/docs/current/static/datatype-json.html
+.. _pgjson: https://www.postgresql.org/docs/current/static/datatype-json.html
 
 In order to pass a Python object to the database as query argument you can use
 the `Json` adapter::
@@ -664,7 +664,7 @@ can be enabled using the `register_hstore()` function.
 
 
 .. |hstore| replace:: :sql:`hstore`
-.. _hstore: http://www.postgresql.org/docs/current/static/hstore.html
+.. _hstore: https://www.postgresql.org/docs/current/static/hstore.html
 
 
 
@@ -686,7 +686,7 @@ after a table row type) into a Python named tuple, or into a regular tuple if
 :py:func:`collections.namedtuple` is not found.
 
 .. |CREATE TYPE| replace:: :sql:`CREATE TYPE`
-.. _CREATE TYPE: http://www.postgresql.org/docs/current/static/sql-createtype.html
+.. _CREATE TYPE: https://www.postgresql.org/docs/current/static/sql-createtype.html
 
 .. doctest::
 
@@ -800,7 +800,7 @@ PostgreSQL |range|_ types. Builtin |range| types are supported out-of-the-box;
 user-defined |range| types can be adapted using `register_range()`.
 
 .. |range| replace:: :sql:`range`
-.. _range: http://www.postgresql.org/docs/current/static/rangetypes.html
+.. _range: https://www.postgresql.org/docs/current/static/rangetypes.html
 
 .. autoclass:: Range
 
@@ -809,7 +809,7 @@ user-defined |range| types can be adapted using `register_range()`.
     features: it doesn't perform normalization and doesn't implement all the
     operators__ supported by the database.
 
-    .. __: http://www.postgresql.org/docs/current/static/functions-range.html#RANGE-OPERATORS-TABLE
+    .. __: https://www.postgresql.org/docs/current/static/functions-range.html#RANGE-OPERATORS-TABLE
 
     `!Range` objects are immutable, hashable, and support the ``in`` operator
     (checking if an element is within the range). They can be tested for

doc/src/faq.rst

@@ -40,7 +40,7 @@ I receive the error *current transaction is aborted, commands ignored until end
     PostgreSQL supports nested transactions using the |SAVEPOINT|_ command).
 
     .. |SAVEPOINT| replace:: :sql:`SAVEPOINT`
-    .. _SAVEPOINT: http://www.postgresql.org/docs/current/static/sql-savepoint.html
+    .. _SAVEPOINT: https://www.postgresql.org/docs/current/static/sql-savepoint.html
 
 
 .. _faq-transaction-aborted-multiprocess:
@@ -184,8 +184,8 @@ Transferring binary data from PostgreSQL 9.0 doesn't work.
       session before reading binary data;
     - upgrade the libpq library on the client to at least 9.0.
 
-    .. __: http://www.postgresql.org/docs/current/static/datatype-binary.html
+    .. __: https://www.postgresql.org/docs/current/static/datatype-binary.html
-    .. __: http://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-BYTEA-OUTPUT
+    .. __: https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-BYTEA-OUTPUT
 
 
 .. _faq-array:
@@ -318,7 +318,7 @@ I can't compile `!psycopg2`: the compiler says *error: libpq-fe.h: No such file
     :program:`pg_config` at install time and the libpq at runtime.
 
     .. |lo_truncate| replace:: `!lo_truncate()`
-    .. _lo_truncate: http://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-TRUNCATE
+    .. _lo_truncate: https://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-TRUNCATE
 
 
 .. _faq-import-mod_wsgi:
@@ -332,5 +332,5 @@ Psycopg raises *ImportError: cannot import name tz* on import in mod_wsgi / ASP,
     use the WSGIPythonEggs__ directive.
 
     .. _egg: http://peak.telecommunity.com/DevCenter/PythonEggs
-    .. __: http://stackoverflow.com/questions/2192323/what-is-the-python-egg-cache-python-egg-cache
+    .. __: https://stackoverflow.com/questions/2192323/what-is-the-python-egg-cache-python-egg-cache
-    .. __: http://code.google.com/p/modwsgi/wiki/ConfigurationDirectives#WSGIPythonEggs
+    .. __: https://modwsgi.readthedocs.io/en/develop/configuration-directives/WSGIPythonEggs.html

doc/src/index.rst

@@ -24,9 +24,9 @@ Psycopg 2 is both Unicode and Python 3 friendly.
 
 
 .. _Psycopg: http://initd.org/psycopg/
-.. _PostgreSQL: http://www.postgresql.org/
+.. _PostgreSQL: https://www.postgresql.org/
-.. _Python: http://www.python.org/
+.. _Python: https://www.python.org/
-.. _libpq: http://www.postgresql.org/docs/current/static/libpq.html
+.. _libpq: https://www.postgresql.org/docs/current/static/libpq.html
 
 
 .. rubric:: Contents

doc/src/install.rst

@@ -12,11 +12,11 @@ to use Psycopg on a different Python implementation (PyPy, Jython, IronPython)
 there is an experimental `porting of Psycopg for Ctypes`__, but it is not as
 mature as the C implementation yet.
 
-.. _PostgreSQL: http://www.postgresql.org/
+.. _PostgreSQL: https://www.postgresql.org/
-.. _Python: http://www.python.org/
+.. _Python: https://www.python.org/
-.. _libpq: http://www.postgresql.org/docs/current/static/libpq.html
+.. _libpq: https://www.postgresql.org/docs/current/static/libpq.html
-.. _CPython: http://en.wikipedia.org/wiki/CPython
+.. _CPython: https://en.wikipedia.org/wiki/CPython
-.. _Ctypes: http://docs.python.org/library/ctypes.html
+.. _Ctypes: https://docs.python.org/library/ctypes.html
 .. __: https://github.com/mvantellingen/psycopg2-ctypes
 
 
@@ -33,7 +33,7 @@ The current `!psycopg2` implementation supports:
     NOTE: keep consistent with setup.py and the /features/ page.
 
 - Python version 2.7
-- Python 3 versions from 3.4 to 3.6
+- Python 3 versions from 3.4 to 3.7
 - PostgreSQL server versions from 7.4 to 10
 - PostgreSQL client library version from 9.1
 
@@ -152,7 +152,7 @@ using something like ``pip install -U pip``), then you can run:
 
 .. __: PyPI-binary_
 .. _PyPI-binary: https://pypi.org/project/psycopg2-binary/
-.. _wheel: http://pythonwheels.com/
+.. _wheel: https://pythonwheels.com/
 
 .. note::
 
@@ -188,7 +188,7 @@ displayed, `psycopg2-binary` has become a separate package, and from 2.8 it
 has become the only way to install the binary package.
 
 If you are using psycopg 2.7 and you want to disable the use of wheel binary
-packages, relying on the system system libraries available on your client, you
+packages, relying on the system libraries available on your client, you
 can use the :command:`pip` |--no-binary option|__, e.g.:
 
 .. code-block:: console

doc/src/module.rst

@@ -50,11 +50,11 @@ The module interface respects the standard defined in the |DBAPI|_.
     using `environment variables`__.
 
     .. __:
-    .. _connstring: http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
+    .. _connstring: https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
     .. __:
-    .. _connparams: http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PARAMKEYWORDS
+    .. _connparams: https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-PARAMKEYWORDS
     .. __:
-    .. _connenvvars: http://www.postgresql.org/docs/current/static/libpq-envars.html
+    .. _connenvvars: https://www.postgresql.org/docs/current/static/libpq-envars.html
 
     Using the *connection_factory* parameter a different class or
     connections factory can be specified. It should be a callable object

doc/src/sql.rst

@@ -77,16 +77,26 @@ to cursor methods such as `~cursor.execute()`, `~cursor.executemany()`,
 
 .. autoclass:: Identifier
 
-    .. autoattribute:: string
+    .. versionchanged:: 2.8
+        added support for multiple strings.
+
+    .. autoattribute:: strings
+
+        .. versionadded:: 2.8
+            previous verions only had a `!string` attribute. The attribute
+            still exists but is deprecate and will only work if the
+            `!Identifier` wraps a single string.
 
 .. autoclass:: Literal
 
     .. autoattribute:: wrapped
 
+
 .. autoclass:: Placeholder
 
     .. autoattribute:: name
 
+
 .. autoclass:: Composed
 
     .. autoattribute:: seq

doc/src/usage.rst

@@ -198,8 +198,8 @@ called `SQL injection`_ and is known to be one of the most widespread forms of
 attack to database servers. Before continuing, please print `this page`__ as a
 memo and hang it onto your desk.
 
-.. _SQL injection: http://en.wikipedia.org/wiki/SQL_injection
+.. _SQL injection: https://en.wikipedia.org/wiki/SQL_injection
-.. __: http://xkcd.com/327/
+.. __: https://xkcd.com/327/
 
 Psycopg can `automatically convert Python objects to and from SQL
 literals`__: using this feature your code will be more robust and
@@ -221,6 +221,27 @@ argument of the `~cursor.execute()` method::
     >>> cur.execute(SQL, data) # Note: no % operator
 
 
+Values containing backslashes and LIKE
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Unlike in Python, the backslash (`\\`) is not used as an escape
+character *except* in patterns used with `LIKE` and `ILIKE` where they
+are needed to escape the `%` and `_` characters.
+
+This can lead to confusing situations::
+
+   >>> path = r'C:\Users\Bobby.Tables'
+   >>> cur.execute('INSERT INTO mytable(path) VALUES (%s)', (path,))
+   >>> cur.execute('SELECT * FROM mytable WHERE path LIKE %s', (path,))
+   >>> cur.fetchall()
+   []
+
+The solution is to specify an `ESCAPE` character of `''` (empty string)
+in your `LIKE` query::
+
+   >>> cur.execute("SELECT * FROM mytable WHERE path LIKE %s ESCAPE ''", (path,))
+
+
   
 .. index::
     single: Adaptation
@@ -351,7 +372,7 @@ converted into `!Decimal`.
     This of course may imply a loss of precision.
 
 .. seealso:: `PostgreSQL numeric types
-    <http://www.postgresql.org/docs/current/static/datatype-numeric.html>`__
+    <https://www.postgresql.org/docs/current/static/datatype-numeric.html>`__
 
 
 .. index::
@@ -391,8 +412,8 @@ defined on the database connection (the `PostgreSQL encoding`__, available in
 
     >>> cur.execute("INSERT INTO test (num, data) VALUES (%s,%s);", (74, u))
 
-.. __: http://www.postgresql.org/docs/current/static/multibyte.html
+.. __: https://www.postgresql.org/docs/current/static/multibyte.html
-.. __: http://docs.python.org/library/codecs.html#standard-encodings
+.. __: https://docs.python.org/library/codecs.html
 
 When reading data from the database, in Python 2 the strings returned are
 usually 8 bit `!str` objects encoded in the database client encoding::
@@ -465,7 +486,7 @@ type `!str`). Any object implementing the `Revised Buffer Protocol`__ should
 be usable as binary type. Received data is returned as `!buffer` (in Python 2)
 or `!memoryview` (in Python 3).
 
-.. __: http://www.python.org/dev/peps/pep-3118/
+.. __: https://www.python.org/dev/peps/pep-3118/
 
 .. versionchanged:: 2.4
    only strings were supported before.
@@ -494,8 +515,8 @@ or `!memoryview` (in Python 3).
    server configuration file or in the client session (using a query such as
    ``SET bytea_output TO escape;``) before receiving binary data.
 
-   .. __: http://www.postgresql.org/docs/current/static/datatype-binary.html
+   .. __: https://www.postgresql.org/docs/current/static/datatype-binary.html
-   .. __: http://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-BYTEA-OUTPUT
+   .. __: https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-BYTEA-OUTPUT
 
 
 .. index::
@@ -527,7 +548,7 @@ the same way::
     "SELECT '38 days 6027.425337 seconds';"
 
 .. seealso:: `PostgreSQL date/time types
-    <http://www.postgresql.org/docs/current/static/datatype-datetime.html>`__
+    <https://www.postgresql.org/docs/current/static/datatype-datetime.html>`__
 
 
 .. index::
@@ -622,7 +643,7 @@ Python lists are converted into PostgreSQL :sql:`ARRAY`\ s::
     Furthermore :sql:`ANY` can also work with empty lists, whereas :sql:`IN ()`
     is a SQL syntax error.
 
-    .. __: http://www.postgresql.org/docs/current/static/functions-subquery.html#FUNCTIONS-SUBQUERY-ANY-SOME
+    .. __: https://www.postgresql.org/docs/current/static/functions-subquery.html#FUNCTIONS-SUBQUERY-ANY-SOME
 
 .. note::
 
@@ -846,7 +867,7 @@ lifetime extends well after `~connection.commit()`, calling
 
 
 .. |DECLARE| replace:: :sql:`DECLARE`
-.. _DECLARE: http://www.postgresql.org/docs/current/static/sql-declare.html
+.. _DECLARE: https://www.postgresql.org/docs/current/static/sql-declare.html
 
 
 
@@ -876,7 +897,7 @@ forked processes`__, so when using a module such as `multiprocessing` or a
 forking web deploy method such as FastCGI make sure to create the connections
 *after* the fork.
 
-.. __: http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNECT
+.. __: https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNECT
 
 Connections shouldn't be shared either by different green threads: see
 :ref:`green-support` for further details.
@@ -920,7 +941,7 @@ Please refer to the documentation of the single methods for details and
 examples.
 
 .. |COPY| replace:: :sql:`COPY`
-.. __: http://www.postgresql.org/docs/current/static/sql-copy.html
+.. __: https://www.postgresql.org/docs/current/static/sql-copy.html
 
 
 
@@ -937,7 +958,7 @@ access to user data that is stored in a special large-object structure. They
 are useful with data values too large to be manipulated conveniently as a
 whole.
 
-.. __: http://www.postgresql.org/docs/current/static/largeobjects.html
+.. __: https://www.postgresql.org/docs/current/static/largeobjects.html
 
 Psycopg allows access to the large object using the
 `~psycopg2.extensions.lobject` class. Objects are generated using the
@@ -948,9 +969,9 @@ Psycopg large object support efficient import/export with file system files
 using the |lo_import|_ and |lo_export|_ libpq functions.
 
 .. |lo_import| replace:: `!lo_import()`
-.. _lo_import: http://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-IMPORT
+.. _lo_import: https://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-IMPORT
 .. |lo_export| replace:: `!lo_export()`
-.. _lo_export: http://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-EXPORT
+.. _lo_export: https://www.postgresql.org/docs/current/static/lo-interfaces.html#LO-EXPORT
 
 .. versionchanged:: 2.6
     added support for large objects greated than 2GB. Note that the support is
@@ -1014,5 +1035,5 @@ transactions produced by a Java program.
 
 For further details see the documentation for the above methods.
 
-.. __: http://www.opengroup.org/bookstore/catalog/c193.htm
+.. __: https://publications.opengroup.org/c193
-.. __: http://jdbc.postgresql.org/
+.. __: https://jdbc.postgresql.org/

lib/__init__.py

@@ -8,8 +8,8 @@ small and fast, and stable as a rock.
 
 Homepage: http://initd.org/projects/psycopg2
 
-.. _PostgreSQL: http://www.postgresql.org/
+.. _PostgreSQL: https://www.postgresql.org/
-.. _Python: http://www.python.org/
+.. _Python: https://www.python.org/
 
 :Groups:
   * `Connections creation`: connect
@@ -43,7 +43,7 @@ Homepage: http://initd.org/projects/psycopg2
 
 # Note: the first internal import should be _psycopg, otherwise the real cause
 # of a failed loading of the C module may get hidden, see
-# http://archives.postgresql.org/psycopg/2011-02/msg00044.php
+# https://archives.postgresql.org/psycopg/2011-02/msg00044.php
 
 # Import the DBAPI-2.0 stuff into top-level module.
 

lib/_range.py

@@ -62,6 +62,19 @@ class Range(object):
             return "%s(%r, %r, %r)" % (self.__class__.__name__,
                 self._lower, self._upper, self._bounds)
 
+    def __str__(self):
+        if self._bounds is None:
+            return 'empty'
+
+        items = [
+            self._bounds[0],
+            str(self._lower),
+            ', ',
+            str(self._upper),
+            self._bounds[1]
+        ]
+        return ''.join(items)
+
     @property
     def lower(self):
         """The lower bound of the range. `!None` if empty or unbound."""

lib/errorcodes.py

@@ -26,7 +26,7 @@ This module contains symbolic names for all PostgreSQL error codes.
 #
 # Based on:
 #
-#   http://www.postgresql.org/docs/current/static/errcodes-appendix.html
+#   https://www.postgresql.org/docs/current/static/errcodes-appendix.html
 #
 
 
@@ -182,6 +182,7 @@ INVALID_XML_PROCESSING_INSTRUCTION = '2200T'
 INVALID_INDICATOR_PARAMETER_VALUE = '22010'
 SUBSTRING_ERROR = '22011'
 DIVISION_BY_ZERO = '22012'
+INVALID_PRECEDING_OR_FOLLOWING_SIZE = '22013'
 INVALID_ARGUMENT_FOR_NTILE_FUNCTION = '22014'
 INTERVAL_FIELD_OVERFLOW = '22015'
 INVALID_ARGUMENT_FOR_NTH_VALUE_FUNCTION = '22016'

lib/extensions.py

@@ -8,7 +8,7 @@ This module holds all the extensions to the DBAPI-2.0 provided by psycopg.
 - `adapt()` -- exposes the PEP-246_ compatible adapting mechanism used
   by psycopg to adapt Python types to PostgreSQL ones
 
-.. _PEP-246: http://www.python.org/peps/pep-0246.html
+.. _PEP-246: https://www.python.org/dev/peps/pep-0246/
 """
 # psycopg/extensions.py - DBAPI-2.0 extensions specific to psycopg
 #

lib/extras.py

@@ -404,7 +404,7 @@ class NamedTupleCursor(_cursor):
 class LoggingConnection(_connection):
     """A connection that logs all queries to a file or logger__ object.
 
-    .. __: http://docs.python.org/library/logging.html
+    .. __: https://docs.python.org/library/logging.html
     """
 
     def initialize(self, logobj):
@@ -638,8 +638,8 @@ class ReplicationCursor(_replicationCursor):
 class UUID_adapter(object):
     """Adapt Python's uuid.UUID__ type to PostgreSQL's uuid__.
 
-    .. __: http://docs.python.org/library/uuid.html
+    .. __: https://docs.python.org/library/uuid.html
-    .. __: http://www.postgresql.org/docs/current/static/datatype-uuid.html
+    .. __: https://www.postgresql.org/docs/current/static/datatype-uuid.html
     """
 
     def __init__(self, uuid):
@@ -759,8 +759,8 @@ def wait_select(conn):
 
     The function is an example of a wait callback to be registered with
     `~psycopg2.extensions.set_wait_callback()`. This function uses
-    :py:func:`~select.select()` to wait for data available.
+    :py:func:`~select.select()` to wait for data to become available, and
-
+    therefore is able to handle/receive SIGINT/KeyboardInterrupt.
     """
     import select
     from psycopg2.extensions import POLL_OK, POLL_READ, POLL_WRITE

lib/sql.py

@@ -290,7 +290,7 @@ class SQL(Composable):
 
 class Identifier(Composable):
     """
-    A `Composable` representing an SQL identifer.
+    A `Composable` representing an SQL identifer or a dot-separated sequence.
 
     Identifiers usually represent names of database objects, such as tables or
     fields. PostgreSQL identifiers follow `different rules`__ than SQL string
@@ -307,20 +307,50 @@ class Identifier(Composable):
         >>> print(sql.SQL(', ').join([t1, t2, t3]).as_string(conn))
         "foo", "ba'r", "ba""z"
 
-    """
+    Multiple strings can be passed to the object to represent a qualified name,
-    def __init__(self, string):
+    i.e. a dot-separated sequence of identifiers.
-        if not isinstance(string, string_types):
-            raise TypeError("SQL identifiers must be strings")
 
-        super(Identifier, self).__init__(string)
+    Example::
+
+        >>> query = sql.SQL("select {} from {}").format(
+        ...     sql.Identifier("table", "field"),
+        ...     sql.Identifier("schema", "table"))
+        >>> print(query.as_string(conn))
+        select "table"."field" from "schema"."table"
+
+    """
+    def __init__(self, *strings):
+        if not strings:
+            raise TypeError("Identifier cannot be empty")
+
+        for s in strings:
+            if not isinstance(s, string_types):
+                raise TypeError("SQL identifier parts must be strings")
+
+        super(Identifier, self).__init__(strings)
+
+    @property
+    def strings(self):
+        """A tuple with the strings wrapped by the `Identifier`."""
+        return self._wrapped
 
     @property
     def string(self):
-        """The string wrapped by the `Identifier`."""
+        """The string wrapped by the `Identifier`.
-        return self._wrapped
+        """
+        if len(self._wrapped) == 1:
+            return self._wrapped[0]
+        else:
+            raise AttributeError(
+                "the Identifier wraps more than one than one string")
+
+    def __repr__(self):
+        return "%s(%s)" % (
+            self.__class__.__name__,
+            ', '.join(map(repr, self._wrapped)))
 
     def as_string(self, context):
-        return ext.quote_ident(self._wrapped, context)
+        return '.'.join(ext.quote_ident(s, context) for s in self._wrapped)
 
 
 class Literal(Composable):

lib/tz.py

@@ -44,7 +44,7 @@ class FixedOffsetTimezone(datetime.tzinfo):
     offset and name that instance will be returned. This saves memory and
     improves comparability.
 
-    .. __: http://docs.python.org/library/datetime.html#datetime-tzinfo
+    .. __: https://docs.python.org/library/datetime.html
     """
     _name = None
     _offset = ZERO

psycopg/column.h

@@ -0,0 +1,48 @@
+/* column.h - definition for a column in cursor.description type
+ *
+ * Copyright (C) 2018  Daniele Varrazzo <daniele.varrazzo@gmail.com>
+ *
+ * This file is part of psycopg.
+ *
+ * psycopg2 is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link this program with the OpenSSL library (or with
+ * modified versions of OpenSSL that use the same license as OpenSSL),
+ * and distribute linked combinations including the two.
+ *
+ * You must obey the GNU Lesser General Public License in all respects for
+ * all of the code used other than OpenSSL.
+ *
+ * psycopg2 is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ */
+
+#ifndef PSYCOPG_COLUMN_H
+#define PSYCOPG_COLUMN_H 1
+
+extern HIDDEN PyTypeObject columnType;
+
+typedef struct {
+  PyObject_HEAD
+
+  PyObject *name;
+  PyObject *type_code;
+  PyObject *display_size;
+  PyObject *internal_size;
+  PyObject *precision;
+  PyObject *scale;
+  PyObject *null_ok;
+
+  /* Extensions to the DBAPI */
+  PyObject *table_oid;
+  PyObject *table_column;
+
+} columnObject;
+
+#endif /* PSYCOPG_COLUMN_H */

psycopg/column_type.c

@@ -0,0 +1,375 @@
+/* column_type.c - python interface to cursor.description objects
+ *
+ * Copyright (C) 2018  Daniele Varrazzo <daniele.varrazzo@gmail.com>
+ *
+ * This file is part of psycopg.
+ *
+ * psycopg2 is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link this program with the OpenSSL library (or with
+ * modified versions of OpenSSL that use the same license as OpenSSL),
+ * and distribute linked combinations including the two.
+ *
+ * You must obey the GNU Lesser General Public License in all respects for
+ * all of the code used other than OpenSSL.
+ *
+ * psycopg2 is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ */
+
+#define PSYCOPG_MODULE
+#include "psycopg/psycopg.h"
+
+#include "psycopg/column.h"
+
+
+static const char column_doc[] =
+    "Description of a column returned by a query.\n\n"
+    "The DBAPI demands this object to be a 7-items sequence. This object\n"
+    "respects this interface, but adds names for the exposed attributes\n"
+    "and adds attribute not requested by the DBAPI.";
+
+static const char name_doc[] =
+    "The name of the column returned.";
+
+static const char type_code_doc[] =
+    "The PostgreSQL OID of the column.\n\n"
+    "You can use the pg_type system table to get more informations about the\n"
+    "type. This is the value used by Psycopg to decide what Python type use\n"
+    "to represent the value";
+
+static const char display_size_doc[] =
+    "The actual length of the column in bytes.\n\n"
+    "Obtaining this value is computationally intensive, so it is always None\n"
+    "unless the PSYCOPG_DISPLAY_SIZE parameter is set at compile time.";
+
+static const char internal_size_doc[] =
+    "The size in bytes of the column associated to this column on the server.\n\n"
+    "Set to a negative value for variable-size types.";
+
+static const char precision_doc[] =
+    "Total number of significant digits in columns of type NUMERIC.\n\n"
+    "None for other types.";
+
+static const char scale_doc[] =
+    "Count of decimal digits in the fractional part in columns of type NUMERIC.\n\n"
+    "None for other types.";
+
+static const char null_ok_doc[] =
+    "Always none.";
+
+static const char table_oid_doc[] =
+    "The OID of the table from which the column was fetched.\n\n"
+    "None if not available";
+
+static const char table_column_doc[] =
+    "The number (within its table) of the column making up the result\n\n"
+    "None if not available. Note that PostgreSQL column numbers start at 1";
+
+
+static PyMemberDef column_members[] = {
+    { "name", T_OBJECT, offsetof(columnObject, name), READONLY, (char *)name_doc },
+    { "type_code", T_OBJECT, offsetof(columnObject, type_code), READONLY, (char *)type_code_doc },
+    { "display_size", T_OBJECT, offsetof(columnObject, display_size), READONLY, (char *)display_size_doc },
+    { "internal_size", T_OBJECT, offsetof(columnObject, internal_size), READONLY, (char *)internal_size_doc },
+    { "precision", T_OBJECT, offsetof(columnObject, precision), READONLY, (char *)precision_doc },
+    { "scale", T_OBJECT, offsetof(columnObject, scale), READONLY, (char *)scale_doc },
+    { "null_ok", T_OBJECT, offsetof(columnObject, null_ok), READONLY, (char *)null_ok_doc },
+    { "table_oid", T_OBJECT, offsetof(columnObject, table_oid), READONLY, (char *)table_oid_doc },
+    { "table_column", T_OBJECT, offsetof(columnObject, table_column), READONLY, (char *)table_column_doc },
+    { NULL }
+};
+
+
+static PyObject *
+column_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
+{
+    return type->tp_alloc(type, 0);
+}
+
+
+static int
+column_init(columnObject *self, PyObject *args, PyObject *kwargs)
+{
+    static char *kwlist[] = {
+        "name", "type_code", "display_size", "internal_size",
+        "precision", "scale", "null_ok", "table_oid", "table_column", NULL};
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOOOOOOOO", kwlist,
+            &self->name, &self->type_code, &self->display_size,
+            &self->internal_size, &self->precision, &self->scale,
+            &self->null_ok, &self->table_oid, &self->table_column)) {
+        return -1;
+    }
+
+    return 0;
+}
+
+
+static void
+column_dealloc(columnObject *self)
+{
+    Py_CLEAR(self->name);
+    Py_CLEAR(self->type_code);
+    Py_CLEAR(self->display_size);
+    Py_CLEAR(self->internal_size);
+    Py_CLEAR(self->precision);
+    Py_CLEAR(self->scale);
+    Py_CLEAR(self->null_ok);
+    Py_CLEAR(self->table_oid);
+    Py_CLEAR(self->table_column);
+
+    Py_TYPE(self)->tp_free((PyObject *)self);
+}
+
+
+static PyObject*
+column_repr(columnObject *self)
+{
+    PyObject *rv = NULL;
+    PyObject *format = NULL;
+    PyObject *args = NULL;
+    PyObject *tmp;
+
+    if (!(format = Text_FromUTF8("Column(name=%r, type_code=%r)"))) {
+        goto exit;
+    }
+
+    if (!(args = PyTuple_New(2))) { goto exit; }
+
+    tmp = self->name ? self->name : Py_None;
+    Py_INCREF(tmp);
+    PyTuple_SET_ITEM(args, 0, tmp);
+
+    tmp = self->type_code ? self->type_code : Py_None;
+    Py_INCREF(tmp);
+    PyTuple_SET_ITEM(args, 1, tmp);
+
+    rv = Text_Format(format, args);
+
+exit:
+    Py_XDECREF(args);
+    Py_XDECREF(format);
+
+    return rv;
+}
+
+
+static PyObject *
+column_richcompare(columnObject *self, PyObject *other, int op)
+{
+    PyObject *rv = NULL;
+    PyObject *tself = NULL;
+
+    if (!(tself = PyObject_CallFunctionObjArgs(
+            (PyObject *)&PyTuple_Type, (PyObject *)self, NULL))) {
+        goto exit;
+    }
+
+    rv = PyObject_RichCompare(tself, other, op);
+
+exit:
+    Py_XDECREF(tself);
+    return rv;
+}
+
+
+/* column description can be accessed as a 7 items tuple for DBAPI compatibility */
+
+static Py_ssize_t
+column_len(columnObject *self)
+{
+    return 7;
+}
+
+
+static PyObject *
+column_getitem(columnObject *self, Py_ssize_t item)
+{
+    PyObject *rv = NULL;
+
+    if (item < 0)
+        item += 7;
+
+    switch (item) {
+    case 0:
+        rv = self->name;
+        break;
+    case 1:
+        rv = self->type_code;
+        break;
+    case 2:
+        rv = self->display_size;
+        break;
+    case 3:
+        rv = self->internal_size;
+        break;
+    case 4:
+        rv = self->precision;
+        break;
+    case 5:
+        rv = self->scale;
+        break;
+    case 6:
+        rv = self->null_ok;
+        break;
+    default:
+        PyErr_SetString(PyExc_IndexError, "index out of range");
+        return NULL;
+    }
+
+    if (!rv) {
+        rv = Py_None;
+    }
+
+    Py_INCREF(rv);
+    return rv;
+}
+
+
+static PySequenceMethods column_sequence = {
+    (lenfunc)column_len,       /* sq_length */
+    0,                         /* sq_concat */
+    0,                         /* sq_repeat */
+    (ssizeargfunc)column_getitem, /* sq_item */
+    0,                         /* sq_slice */
+    0,                         /* sq_ass_item */
+    0,                         /* sq_ass_slice */
+    0,                         /* sq_contains */
+    0,                         /* sq_inplace_concat */
+    0,                         /* sq_inplace_repeat */
+};
+
+
+static PyObject *
+column_getstate(columnObject *self)
+{
+    return PyObject_CallFunctionObjArgs(
+        (PyObject *)&PyTuple_Type, (PyObject *)self, NULL);
+}
+
+
+PyObject *
+column_setstate(columnObject *self, PyObject *state)
+{
+    Py_ssize_t size;
+    PyObject *rv = NULL;
+
+    if (state == Py_None) {
+        goto exit;
+    }
+    if (!PyTuple_Check(state)) {
+        PyErr_SetString(PyExc_TypeError, "state is not a tuple");
+        goto error;
+    }
+
+    size = PyTuple_GET_SIZE(state);
+
+    if (size > 0) {
+        Py_CLEAR(self->name);
+        self->name = PyTuple_GET_ITEM(state, 0);
+        Py_INCREF(self->name);
+    }
+    if (size > 1) {
+        Py_CLEAR(self->type_code);
+        self->type_code = PyTuple_GET_ITEM(state, 1);
+        Py_INCREF(self->type_code);
+    }
+    if (size > 2) {
+        Py_CLEAR(self->display_size);
+        self->display_size = PyTuple_GET_ITEM(state, 2);
+        Py_INCREF(self->display_size);
+    }
+    if (size > 3) {
+        Py_CLEAR(self->internal_size);
+        self->internal_size = PyTuple_GET_ITEM(state, 3);
+        Py_INCREF(self->internal_size);
+    }
+    if (size > 4) {
+        Py_CLEAR(self->precision);
+        self->precision = PyTuple_GET_ITEM(state, 4);
+        Py_INCREF(self->precision);
+    }
+    if (size > 5) {
+        Py_CLEAR(self->scale);
+        self->scale = PyTuple_GET_ITEM(state, 5);
+        Py_INCREF(self->scale);
+    }
+    if (size > 6) {
+        Py_CLEAR(self->null_ok);
+        self->null_ok = PyTuple_GET_ITEM(state, 6);
+        Py_INCREF(self->null_ok);
+    }
+    if (size > 7) {
+        Py_CLEAR(self->table_oid);
+        self->table_oid = PyTuple_GET_ITEM(state, 7);
+        Py_INCREF(self->table_oid);
+    }
+    if (size > 8) {
+        Py_CLEAR(self->table_column);
+        self->table_column = PyTuple_GET_ITEM(state, 8);
+        Py_INCREF(self->table_column);
+    }
+
+exit:
+    rv = Py_None;
+    Py_INCREF(rv);
+
+error:
+    return rv;
+}
+
+
+static PyMethodDef column_methods[] = {
+    /* Make Column picklable. */
+    {"__getstate__", (PyCFunction)column_getstate, METH_NOARGS },
+    {"__setstate__", (PyCFunction)column_setstate, METH_O },
+    {NULL}
+};
+
+
+PyTypeObject columnType = {
+    PyVarObject_HEAD_INIT(NULL, 0)
+    "psycopg2.extensions.Column",
+    sizeof(columnObject), 0,
+    (destructor)column_dealloc, /* tp_dealloc */
+    0,          /*tp_print*/
+    0,          /*tp_getattr*/
+    0,          /*tp_setattr*/
+    0,          /*tp_compare*/
+    (reprfunc)column_repr, /*tp_repr*/
+    0,          /*tp_as_number*/
+    &column_sequence, /*tp_as_sequence*/
+    0,          /*tp_as_mapping*/
+    0,          /*tp_hash */
+    0,          /*tp_call*/
+    0,          /*tp_str*/
+    0,          /*tp_getattro*/
+    0,          /*tp_setattro*/
+    0,          /*tp_as_buffer*/
+    Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+    column_doc, /*tp_doc*/
+    0,          /*tp_traverse*/
+    0,          /*tp_clear*/
+    (richcmpfunc)column_richcompare, /*tp_richcompare*/
+    0,          /*tp_weaklistoffset*/
+    0,          /*tp_iter*/
+    0,          /*tp_iternext*/
+    column_methods, /*tp_methods*/
+    column_members, /*tp_members*/
+    0,          /*tp_getset*/
+    0,          /*tp_base*/
+    0,          /*tp_dict*/
+    0,          /*tp_descr_get*/
+    0,          /*tp_descr_set*/
+    0,          /*tp_dictoffset*/
+    (initproc)column_init, /*tp_init*/
+    0,          /*tp_alloc*/
+    column_new, /*tp_new*/
+};

psycopg/config.h

@@ -154,8 +154,7 @@ typedef unsigned __int64    uint64_t;
 #endif
 
 /* what's this, we have no round function either? */
-#if (defined(__FreeBSD__) && __FreeBSD_version < 503000) \
+#if (defined(_WIN32) && !defined(__GNUC__)) \
-    || (defined(_WIN32) && !defined(__GNUC__)) \
     || (defined(sun) || defined(__sun__)) \
         && (defined(__SunOS_5_8) || defined(__SunOS_5_9))
 

psycopg/connection_type.c

@@ -757,6 +757,7 @@ psyco_conn_readonly_get(connectionObject *self)
             break;
     }
 
+    Py_XINCREF(rv);
     return rv;
 }
 
@@ -803,6 +804,7 @@ psyco_conn_deferrable_get(connectionObject *self)
             break;
     }
 
+    Py_XINCREF(rv);
     return rv;
 }
 
@@ -992,6 +994,25 @@ psyco_conn_get_backend_pid(connectionObject *self)
     return PyInt_FromLong((long)PQbackendPID(self->pgconn));
 }
 
+/* get the current host */
+
+#define psyco_conn_host_get_doc \
+"host -- Get the host name."
+
+static PyObject *
+psyco_conn_host_get(connectionObject *self)
+{
+    const char *val = NULL;
+
+    EXC_IF_CONN_CLOSED(self);
+
+    val = PQhost(self->pgconn);
+    if (!val) {
+        Py_RETURN_NONE;
+    }
+    return conn_text_from_chars(self, val);
+}
+
 /* reset the currect connection */
 
 #define psyco_conn_reset_doc \
@@ -1243,6 +1264,9 @@ static struct PyGetSetDef connectionObject_getsets[] = {
         (getter)psyco_conn_deferrable_get,
         (setter)psyco_conn_deferrable_set,
         psyco_conn_deferrable_doc },
+    { "host",
+        (getter)psyco_conn_host_get, NULL,
+        psyco_conn_host_get_doc },
     {NULL}
 };
 #undef EXCEPTION_GETTER

psycopg/cursor_type.c

@@ -49,21 +49,21 @@
 static PyObject *
 psyco_curs_close(cursorObject *self)
 {
+    PyObject *rv = NULL;
+    char *lname = NULL;
+
     EXC_IF_ASYNC_IN_PROGRESS(self, close);
 
     if (self->closed) {
+        rv = Py_None;
+        Py_INCREF(rv);
         goto exit;
     }
 
     if (self->qname != NULL) {
-        char buffer[128];
+        char buffer[256];
         PGTransactionStatusType status;
 
-        if (!self->query) {
-            Dprintf("skipping named cursor close because unused");
-            goto close;
-        }
-
         if (self->conn) {
             status = PQtransactionStatus(self->conn->pgconn);
         }
@@ -77,17 +77,45 @@ psyco_curs_close(cursorObject *self)
             goto close;
         }
 
+        /* We should close a server-side cursor only if exists, or we get an
+         * error (#716). If we execute()d the cursor should exist alright, but
+         * if we didn't there is still the expectation that the cursor is
+         * closed (#746).
+         *
+         * So if we didn't execute() check for the cursor existence before
+         * closing it (the view exists since PG 8.2 according to docs).
+         */
+        if (!self->query && self->conn->server_version >= 80200) {
+            if (!(lname = psycopg_escape_string(
+                    self->conn, self->name, -1, NULL, NULL))) {
+                goto exit;
+            }
+            PyOS_snprintf(buffer, sizeof(buffer),
+                "SELECT 1 FROM pg_catalog.pg_cursors where name = %s",
+                lname);
+            if (pq_execute(self, buffer, 0, 0, 1) == -1) { goto exit; }
+
+            if (self->rowcount == 0) {
+                Dprintf("skipping named cursor close because not existing");
+                goto close;
+            }
+        }
+
         EXC_IF_NO_MARK(self);
-        PyOS_snprintf(buffer, 127, "CLOSE %s", self->qname);
+        PyOS_snprintf(buffer, sizeof(buffer), "CLOSE %s", self->qname);
-        if (pq_execute(self, buffer, 0, 0, 1) == -1) return NULL;
+        if (pq_execute(self, buffer, 0, 0, 1) == -1) { goto exit; }
     }
 
 close:
     self->closed = 1;
     Dprintf("psyco_curs_close: cursor at %p closed", self);
 
+    rv = Py_None;
+    Py_INCREF(rv);
+
 exit:
-    Py_RETURN_NONE;
+    PyMem_Free(lname);
+    return rv;
 }
 
 
@@ -742,7 +770,7 @@ psyco_curs_fetchone(cursorObject *self)
         EXC_IF_NO_MARK(self);
         EXC_IF_ASYNC_IN_PROGRESS(self, fetchone);
         EXC_IF_TPC_PREPARED(self->conn, fetchone);
-        PyOS_snprintf(buffer, 127, "FETCH FORWARD 1 FROM %s", self->qname);
+        PyOS_snprintf(buffer, sizeof(buffer), "FETCH FORWARD 1 FROM %s", self->qname);
         if (pq_execute(self, buffer, 0, 0, self->withhold) == -1) return NULL;
         if (_psyco_curs_prefetch(self) < 0) return NULL;
     }
@@ -791,7 +819,7 @@ psyco_curs_next_named(cursorObject *self)
     if (self->row >= self->rowcount) {
         char buffer[128];
 
-        PyOS_snprintf(buffer, 127, "FETCH FORWARD %ld FROM %s",
+        PyOS_snprintf(buffer, sizeof(buffer), "FETCH FORWARD %ld FROM %s",
             self->itersize, self->qname);
         if (pq_execute(self, buffer, 0, 0, self->withhold) == -1) return NULL;
         if (_psyco_curs_prefetch(self) < 0) return NULL;
@@ -860,7 +888,7 @@ psyco_curs_fetchmany(cursorObject *self, PyObject *args, PyObject *kwords)
         EXC_IF_NO_MARK(self);
         EXC_IF_ASYNC_IN_PROGRESS(self, fetchmany);
         EXC_IF_TPC_PREPARED(self->conn, fetchone);
-        PyOS_snprintf(buffer, 127, "FETCH FORWARD %d FROM %s",
+        PyOS_snprintf(buffer, sizeof(buffer), "FETCH FORWARD %d FROM %s",
             (int)size, self->qname);
         if (pq_execute(self, buffer, 0, 0, self->withhold) == -1) { goto exit; }
         if (_psyco_curs_prefetch(self) < 0) { goto exit; }
@@ -936,7 +964,7 @@ psyco_curs_fetchall(cursorObject *self)
         EXC_IF_NO_MARK(self);
         EXC_IF_ASYNC_IN_PROGRESS(self, fetchall);
         EXC_IF_TPC_PREPARED(self->conn, fetchall);
-        PyOS_snprintf(buffer, 127, "FETCH FORWARD ALL FROM %s", self->qname);
+        PyOS_snprintf(buffer, sizeof(buffer), "FETCH FORWARD ALL FROM %s", self->qname);
         if (pq_execute(self, buffer, 0, 0, self->withhold) == -1) { goto exit; }
         if (_psyco_curs_prefetch(self) < 0) { goto exit; }
     }
@@ -1233,11 +1261,11 @@ psyco_curs_scroll(cursorObject *self, PyObject *args, PyObject *kwargs)
         EXC_IF_TPC_PREPARED(self->conn, scroll);
 
         if (strcmp(mode, "absolute") == 0) {
-            PyOS_snprintf(buffer, 127, "MOVE ABSOLUTE %d FROM %s",
+            PyOS_snprintf(buffer, sizeof(buffer), "MOVE ABSOLUTE %d FROM %s",
                 value, self->qname);
         }
         else {
-            PyOS_snprintf(buffer, 127, "MOVE %d FROM %s", value, self->qname);
+            PyOS_snprintf(buffer, sizeof(buffer), "MOVE %d FROM %s", value, self->qname);
         }
         if (pq_execute(self, buffer, 0, 0, self->withhold) == -1) return NULL;
         if (_psyco_curs_prefetch(self) < 0) return NULL;

psycopg/diagnostics_type.c

@@ -29,8 +29,11 @@
 #include "psycopg/diagnostics.h"
 #include "psycopg/error.h"
 
-/* These are new in PostgreSQL 9.3. Defining them here so that psycopg2 can
+
- * use them with a 9.3+ server even if compiled against pre-9.3 headers. */
+/* These constants are defined in src/include/postgres_ext.h but some may not
+ * be available with the libpq we currently support at compile time. */
+
+/* Available from PG 9.3 */
 #ifndef PG_DIAG_SCHEMA_NAME
 #define PG_DIAG_SCHEMA_NAME     's'
 #endif
@@ -47,6 +50,11 @@
 #define PG_DIAG_CONSTRAINT_NAME 'n'
 #endif
 
+/* Available from PG 9.6 */
+#ifndef PG_DIAG_SEVERITY_NONLOCALIZED
+#define PG_DIAG_SEVERITY_NONLOCALIZED 'V'
+#endif
+
 
 /* Retrieve an error string from the exception's cursor.
  *
@@ -70,6 +78,8 @@ psyco_diagnostics_get_field(diagnosticsObject *self, void *closure)
 static struct PyGetSetDef diagnosticsObject_getsets[] = {
     { "severity", (getter)psyco_diagnostics_get_field, NULL,
       NULL, (void*) PG_DIAG_SEVERITY },
+    { "severity_nonlocalized", (getter)psyco_diagnostics_get_field, NULL,
+      NULL, (void*) PG_DIAG_SEVERITY_NONLOCALIZED },
     { "sqlstate", (getter)psyco_diagnostics_get_field, NULL,
       NULL, (void*) PG_DIAG_SQLSTATE },
     { "message_primary", (getter)psyco_diagnostics_get_field, NULL,
@@ -152,7 +162,7 @@ static const char diagnosticsType_doc[] =
     "Please refer to the `PostgreSQL documentation`__ for the meaning of all"
         " the attributes.\n\n"
     ".. |PQresultErrorField| replace:: `!PQresultErrorField()`\n"
-    ".. _PQresultErrorField: http://www.postgresql.org/docs/current/static/"
+    ".. _PQresultErrorField: https://www.postgresql.org/docs/current/static/"
         "libpq-exec.html#LIBPQ-PQRESULTERRORFIELD\n"
     ".. __: PQresultErrorField_\n";
 

psycopg/green.h

@@ -48,7 +48,7 @@ extern "C" {
 "See `~psycopg2.extras.wait_select()` for an example of a wait callback\n" \
 "implementation.\n" \
 "\n" \
-".. _Eventlet: http://eventlet.net/\n" \
+".. _Eventlet: https://eventlet.net/\n" \
 ".. _gevent: http://www.gevent.org/\n"
 HIDDEN PyObject *psyco_set_wait_callback(PyObject *self, PyObject *obj);
 

psycopg/pqpath.c

@@ -41,6 +41,7 @@
 #include "psycopg/typecast.h"
 #include "psycopg/pgtypes.h"
 #include "psycopg/error.h"
+#include "psycopg/column.h"
 
 #include "psycopg/libpq_support.h"
 #include "libpq-fe.h"
@@ -108,7 +109,7 @@ exit:
 /* Returns the Python exception corresponding to an SQLSTATE error
    code.  A list of error codes can be found at:
 
-   http://www.postgresql.org/docs/current/static/errcodes-appendix.html */
+   https://www.postgresql.org/docs/current/static/errcodes-appendix.html */
 BORROWED static PyObject *
 exception_from_sqlstate(const char *sqlstate)
 {
@@ -1150,12 +1151,13 @@ pq_send_query(connectionObject *conn, const char *query)
  * The function will block only if a command is active and the
  * necessary response data has not yet been read by PQconsumeInput.
  *
- * The result should be disposed using PQclear()
+ * The result should be disposed of using PQclear()
  */
 PGresult *
 pq_get_last_result(connectionObject *conn)
 {
     PGresult *result = NULL, *res;
+    ExecStatusType status;
 
     /* Read until PQgetResult gives a NULL */
     while (NULL != (res = PQgetResult(conn->pgconn))) {
@@ -1168,11 +1170,15 @@ pq_get_last_result(connectionObject *conn)
             PQclear(result);
         }
         result = res;
+        status = PQresultStatus(result);
+        Dprintf("pq_get_last_result: got result %s", PQresStatus(status));
 
-        /* After entering copy both mode, libpq will make a phony
+        /* After entering copy mode, libpq will make a phony
          * PGresult for us every time we query for it, so we need to
          * break out of this endless loop. */
-        if (PQresultStatus(result) == PGRES_COPY_BOTH) {
+        if (status == PGRES_COPY_BOTH
+                || status == PGRES_COPY_OUT
+                || status == PGRES_COPY_IN) {
             break;
         }
     }
@@ -1245,12 +1251,17 @@ _pq_fetch_tuples(cursorObject *curs)
         Oid ftype = PQftype(curs->pgres, i);
         int fsize = PQfsize(curs->pgres, i);
         int fmod =  PQfmod(curs->pgres, i);
+        Oid ftable = PQftable(curs->pgres, i);
+        int ftablecol = PQftablecol(curs->pgres, i);
 
-        PyObject *dtitem = NULL;
+        columnObject *column = NULL;
         PyObject *type = NULL;
         PyObject *cast = NULL;
 
-        if (!(dtitem = PyTuple_New(7))) { goto exit; }
+        if (!(column = (columnObject *)PyObject_CallObject(
+                (PyObject *)&columnType, NULL))) {
+            goto exit;
+        }
 
         /* fill the right cast function by accessing three different dictionaries:
            - the per-cursor dictionary, if available (can be NULL or None)
@@ -1287,20 +1298,16 @@ _pq_fetch_tuples(cursorObject *curs)
                     curs->conn, PQfname(curs->pgres, i)))) {
                 goto err_for;
             }
-            PyTuple_SET_ITEM(dtitem, 0, tmp);
+            column->name = tmp;
         }
-        PyTuple_SET_ITEM(dtitem, 1, type);
+        column->type_code = type;
         type = NULL;
 
         /* 2/ display size is the maximum size of this field result tuples. */
         if (dsize && dsize[i] >= 0) {
             PyObject *tmp;
             if (!(tmp = PyInt_FromLong(dsize[i]))) { goto err_for; }
-            PyTuple_SET_ITEM(dtitem, 2, tmp);
+            column->display_size = tmp;
-        }
-        else {
-            Py_INCREF(Py_None);
-            PyTuple_SET_ITEM(dtitem, 2, Py_None);
         }
 
         /* 3/ size on the backend */
@@ -1309,18 +1316,18 @@ _pq_fetch_tuples(cursorObject *curs)
             if (ftype == NUMERICOID) {
                 PyObject *tmp;
                 if (!(tmp = PyInt_FromLong((fmod >> 16)))) { goto err_for; }
-                PyTuple_SET_ITEM(dtitem, 3, tmp);
+                column->internal_size = tmp;
             }
             else { /* If variable length record, return maximum size */
                 PyObject *tmp;
                 if (!(tmp = PyInt_FromLong(fmod))) { goto err_for; }
-                PyTuple_SET_ITEM(dtitem, 3, tmp);
+                column->internal_size = tmp;
             }
         }
         else {
             PyObject *tmp;
             if (!(tmp = PyInt_FromLong(fsize))) { goto err_for; }
-            PyTuple_SET_ITEM(dtitem, 3, tmp);
+            column->internal_size = tmp;
         }
 
         /* 4,5/ scale and precision */
@@ -1330,40 +1337,35 @@ _pq_fetch_tuples(cursorObject *curs)
             if (!(tmp = PyInt_FromLong((fmod >> 16) & 0xFFFF))) {
                 goto err_for;
             }
-            PyTuple_SET_ITEM(dtitem, 4, tmp);
+            column->precision = tmp;
 
             if (!(tmp = PyInt_FromLong(fmod & 0xFFFF))) {
-                PyTuple_SET_ITEM(dtitem, 5, tmp);
+                goto err_for;
             }
-            PyTuple_SET_ITEM(dtitem, 5, tmp);
+            column->scale = tmp;
-        }
-        else {
-            Py_INCREF(Py_None);
-            PyTuple_SET_ITEM(dtitem, 4, Py_None);
-            Py_INCREF(Py_None);
-            PyTuple_SET_ITEM(dtitem, 5, Py_None);
         }
 
-        /* 6/ FIXME: null_ok??? */
+        /* table_oid, table_column */
-        Py_INCREF(Py_None);
+        if (ftable != InvalidOid) {
-        PyTuple_SET_ITEM(dtitem, 6, Py_None);
+            PyObject *tmp;
-
+            if (!(tmp = PyInt_FromLong((long)ftable))) { goto err_for; }
-        /* Convert into a namedtuple if available */
+            column->table_oid = tmp;
-        if (Py_None != psyco_DescriptionType) {
-            PyObject *tmp = dtitem;
-            dtitem = PyObject_CallObject(psyco_DescriptionType, tmp);
-            Py_DECREF(tmp);
-            if (NULL == dtitem) { goto err_for; }
         }
 
-        PyTuple_SET_ITEM(description, i, dtitem);
+        if (ftablecol > 0) {
-        dtitem = NULL;
+            PyObject *tmp;
+            if (!(tmp = PyInt_FromLong((long)ftablecol))) { goto err_for; }
+            column->table_column = tmp;
+        }
+
+        PyTuple_SET_ITEM(description, i, (PyObject *)column);
+        column = NULL;
 
         continue;
 
 err_for:
         Py_XDECREF(type);
-        Py_XDECREF(dtitem);
+        Py_XDECREF(column);
         goto exit;
     }
 

psycopg/psycopgmodule.c

@@ -32,6 +32,7 @@
 #include "psycopg/replication_cursor.h"
 #include "psycopg/replication_message.h"
 #include "psycopg/green.h"
+#include "psycopg/column.h"
 #include "psycopg/lobject.h"
 #include "psycopg/notify.h"
 #include "psycopg/xid.h"
@@ -69,9 +70,6 @@ HIDDEN int psycopg_debug_enabled = 0;
 /* Python representation of SQL NULL */
 HIDDEN PyObject *psyco_null = NULL;
 
-/* The type of the cursor.description items */
-HIDDEN PyObject *psyco_DescriptionType = NULL;
-
 /* macro trick to stringify a macro expansion */
 #define xstr(s) str(s)
 #define str(s) #s
@@ -839,63 +837,6 @@ psyco_GetDecimalType(void)
 }
 
 
-/* Create a namedtuple for cursor.description items
- *
- * Return None in case of expected errors (e.g. namedtuples not available)
- * NULL in case of errors to propagate.
- */
-static PyObject *
-psyco_make_description_type(void)
-{
-    PyObject *coll = NULL;
-    PyObject *nt = NULL;
-    PyTypeObject *t = NULL;
-    PyObject *s = NULL;
-    PyObject *rv = NULL;
-
-    /* Try to import collections.namedtuple */
-    if (!(coll = PyImport_ImportModule("collections"))) {
-        Dprintf("psyco_make_description_type: collections import failed");
-        goto error;
-    }
-    if (!(nt = PyObject_GetAttrString(coll, "namedtuple"))) {
-        Dprintf("psyco_make_description_type: no collections.namedtuple");
-        goto error;
-    }
-
-    /* Build the namedtuple */
-    if(!(t = (PyTypeObject *)PyObject_CallFunction(nt, "ss", "Column",
-        "name type_code display_size internal_size precision scale null_ok"))) {
-        goto exit;
-    }
-
-    /* Export the tuple on the extensions module
-     * Required to guarantee picklability on Py > 3.3 (see Python issue 21374)
-     * for previous Py version the module is psycopg2 anyway but for consistency
-     * we'd rather expose it from the extensions module. */
-    if (!(s = Text_FromUTF8("psycopg2.extensions"))) { goto exit; }
-    if (0 > PyDict_SetItemString(t->tp_dict, "__module__", s)) { goto exit; }
-
-    rv = (PyObject *)t;
-    t = NULL;
-
-exit:
-    Py_XDECREF(coll);
-    Py_XDECREF(nt);
-    Py_XDECREF((PyObject *)t);
-    Py_XDECREF(s);
-
-    return rv;
-
-error:
-    /* controlled error: we will fall back to regular tuples. Return None. */
-    PyErr_Clear();
-    rv = Py_None;
-    Py_INCREF(rv);
-    goto exit;
-}
-
-
 /** method table and module initialization **/
 
 static PyMethodDef psycopgMethods[] = {
@@ -1041,6 +982,9 @@ INIT_MODULE(_psycopg)(void)
     Py_TYPE(&chunkType) = &PyType_Type;
     if (PyType_Ready(&chunkType) == -1) goto exit;
 
+    Py_TYPE(&columnType) = &PyType_Type;
+    if (PyType_Ready(&columnType) == -1) goto exit;
+
     Py_TYPE(&notifyType) = &PyType_Type;
     if (PyType_Ready(&notifyType) == -1) goto exit;
 
@@ -1119,7 +1063,6 @@ INIT_MODULE(_psycopg)(void)
     if (!(psycoEncodings = PyDict_New())) { goto exit; }
     if (0 != psyco_encodings_fill(psycoEncodings)) { goto exit; }
     psyco_null = Bytes_FromString("NULL");
-    if (!(psyco_DescriptionType = psyco_make_description_type())) { goto exit; }
 
     /* set some module's parameters */
     PyModule_AddStringConstant(module, "__version__", xstr(PSYCOPG_VERSION));
@@ -1138,6 +1081,7 @@ INIT_MODULE(_psycopg)(void)
     PyModule_AddObject(module, "ReplicationCursor", (PyObject*)&replicationCursorType);
     PyModule_AddObject(module, "ReplicationMessage", (PyObject*)&replicationMessageType);
     PyModule_AddObject(module, "ISQLQuote", (PyObject*)&isqlquoteType);
+    PyModule_AddObject(module, "Column", (PyObject*)&columnType);
     PyModule_AddObject(module, "Notify", (PyObject*)&notifyType);
     PyModule_AddObject(module, "Xid", (PyObject*)&xidType);
     PyModule_AddObject(module, "Diagnostics", (PyObject*)&diagnosticsType);
@@ -1150,7 +1094,6 @@ INIT_MODULE(_psycopg)(void)
     PyModule_AddObject(module, "List", (PyObject*)&listType);
     PyModule_AddObject(module, "QuotedString", (PyObject*)&qstringType);
     PyModule_AddObject(module, "lobject", (PyObject*)&lobjectType);
-    PyModule_AddObject(module, "Column", psyco_DescriptionType);
 
     /* encodings dictionary in module dictionary */
     PyModule_AddObject(module, "encodings", psycoEncodings);

psycopg/typecast_binary.c

@@ -212,7 +212,7 @@ static const char hex_lut[128] = {
 /* Parse a bytea output buffer encoded in 'hex' format.
  *
  * the format is described in
- * http://www.postgresql.org/docs/current/static/datatype-binary.html
+ * https://www.postgresql.org/docs/current/static/datatype-binary.html
  *
  * Parse the buffer in 'bufin', whose length is 'sizein'.
  * Return a new buffer allocated by PyMem_Malloc and set 'sizeout' to its size.
@@ -262,7 +262,7 @@ exit:
 /* Parse a bytea output buffer encoded in 'escape' format.
  *
  * the format is described in
- * http://www.postgresql.org/docs/current/static/datatype-binary.html
+ * https://www.postgresql.org/docs/current/static/datatype-binary.html
  *
  * Parse the buffer in 'bufin', whose length is 'sizein'.
  * Return a new buffer allocated by PyMem_Malloc and set 'sizeout' to its size.

sandbox/array.py

@@ -1,30 +0,0 @@
-import psycopg2
-
-conn = psycopg2.connect("port=5433 dbname=test")
-curs = conn.cursor()
-
-#curs.execute("SELECT ARRAY[1,2,3] AS foo")
-#print curs.fetchone()[0]
-
-#curs.execute("SELECT ARRAY['1','2','3'] AS foo")
-#print curs.fetchone()[0]
-
-#curs.execute("""SELECT ARRAY[',','"','\\\\'] AS foo""")
-#d = curs.fetchone()[0]
-#print d, '->', d[0], d[1], d[2]
-
-#curs.execute("SELECT ARRAY[ARRAY[1,2],ARRAY[3,4]] AS foo")
-#print curs.fetchone()[0]
-
-#curs.execute("SELECT ARRAY[ARRAY[now(), now()], ARRAY[now(), now()]] AS foo")
-#print curs.description
-#print curs.fetchone()[0]
-
-#curs.execute("SELECT 1 AS foo, ARRAY[1,2] AS bar")
-#print curs.fetchone()
-
-#curs.execute("SELECT * FROM test()")
-#print curs.fetchone()
-
-curs.execute("SELECT %s", ([1,2,None],))
-print(curs.fetchone())

sandbox/async.py

@@ -1,35 +0,0 @@
-import datetime
-import time
-import psycopg2
-
-#d = datetime.timedelta(12, 100, 9876)
-#print d.days, d.seconds, d.microseconds
-#print psycopg.adapt(d).getquoted()
-
-conn = psycopg2.connect("dbname=test_unicode")
-conn.set_client_encoding("xxx")
-curs = conn.cursor()
-#curs.execute("SELECT 1.0 AS foo")
-#print curs.fetchmany(2)
-#print curs.fetchall()
-
-def sleep(curs):
-    while not curs.isready():
-        print(".")
-        time.sleep(.1)
-
-#curs.execute("""
-#    DECLARE zz INSENSITIVE SCROLL CURSOR WITH HOLD FOR
-#    SELECT now();
-#    FOR READ ONLY;""", async = 1)
-curs.execute("SELECT now() AS foo", async=1)
-sleep(curs)
-print(curs.fetchall())
-
-#curs.execute("""
-#    FETCH FORWARD 1 FROM zz;""", async = 1)
-curs.execute("SELECT now() AS bar", async=1)
-print(curs.fetchall())
-
-curs.execute("SELECT now() AS bar")
-sleep(curs)

sandbox/crash.py

@@ -1,25 +0,0 @@
-#!/usr/bin/env python
-
-#import psycopg as db
-import psycopg2 as db
-import threading
-import time
-import sys
-
-def query_worker(dsn):
-    conn = db.connect(dsn)
-    cursor = conn.cursor()
-    while True:
-        cursor.execute("select * from pg_class")
-        while True:
-            row = cursor.fetchone()
-            if row is None:
-                break
-
-if len(sys.argv) != 2:
-    print('usage: %s DSN' % sys.argv[0])
-    sys.exit(1)
-th = threading.Thread(target=query_worker, args=(sys.argv[1],))
-th.setDaemon(True)
-th.start()
-time.sleep(1)

sandbox/dec2float.py

@@ -1,15 +0,0 @@
-import psycopg2
-import psycopg2.extensions
-
-DEC2FLOAT = psycopg2.extensions.new_type(
-  psycopg2._psycopg.DECIMAL.values,
-  'DEC2FLOAT',
-  psycopg2.extensions.FLOAT)
-
-psycopg2.extensions.register_type(DEC2FLOAT)
-
-o = psycopg2.connect("dbname=test")
-c = o.cursor()
-c.execute("SELECT NULL::decimal(10,2)")
-n = c.fetchone()[0]
-print(n, type(n))

sandbox/domainoid.py

@@ -1,18 +0,0 @@
-import psycopg2
-
-con = psycopg2.connect("dbname=test")
-
-cur = con.cursor()
-cur.execute("SELECT %s::regtype::oid", ('bytea', ))
-print(cur.fetchone()[0])
-# 17
-
-cur.execute("CREATE DOMAIN thing AS bytea")
-cur.execute("SELECT %s::regtype::oid", ('thing', ))
-print(cur.fetchone()[0])
-#62148
-
-cur.execute("CREATE TABLE thingrel (thingcol thing)")
-cur.execute("SELECT * FROM thingrel")
-print(cur.description)
-#(('thingcol', 17, None, -1, None, None, None),)

sandbox/gtk.py

@@ -1,18 +0,0 @@
-import psycopg2
-
-o = psycopg2.connect("dbname=test")
-c = o.cursor()
-
-def sql():
-    c.execute("SELECT 1.23 AS foo")
-    print(1, c.fetchone())
-    #print c.description
-    c.execute("SELECT 1.23::float AS foo")
-    print(2, c.fetchone())
-    #print c.description
-
-print("BEFORE")
-sql()
-import gtk
-print("AFTER")
-sql()

sandbox/iter.py

@@ -1,13 +0,0 @@
-import psycopg2
-import psycopg2.extras
-
-conn = psycopg2.connect("dbname=test")
-curs = conn.cursor(cursor_factory=psycopg2.extras.DictCursor)
-
-curs.execute("SELECT '2005-2-12'::date AS foo, 'boo!' as bar")
-for x in curs.fetchall():
-    print(type(x), x[0], x[1], x['foo'], x['bar'])
-
-curs.execute("SELECT '2005-2-12'::date AS foo, 'boo!' as bar")
-for x in curs:
-    print(type(x), x[0], x[1], x['foo'], x['bar'])

sandbox/leak.test.py

@@ -1,82 +0,0 @@
-"""
-script: test_leak.py
-
-This script attempts to repeatedly insert the same list of rows into
-the database table, causing a duplicate key error to occur. It will
-then roll back the transaction and try again.
-
-Database table schema:
-    -- CREATE TABLE t (foo TEXT PRIMARY KEY);
-
-There are two ways to run the script, which will launch one of the
-two functions:
-
-# leak() will cause increasingly more RAM to be used by the script.
-$ python <script_nam> leak
-
-# noleak() does not have the RAM usage problem. The only difference
-# between it and leak() is that 'rows' is created once, before the loop.
-$ python <script_name> noleak
-
-Use Control-C to quit the script.
-"""
-import sys
-import psycopg2
-
-DB_NAME = 'test'
-
-connection = psycopg2.connect(database=DB_NAME)
-cursor = connection.cursor()
-# Uncomment the following if table 't' does not exist
-create_table = """CREATE TABLE t (foo TEXT PRIMARY KEY)"""
-cursor.execute(create_table)
-
-insert = """INSERT INTO t VALUES (%(foo)s)"""
-
-def leak():
-    """rows created in each loop run"""
-    count = 0
-    while 1:
-        try:
-            rows = []
-            for i in range(1, 100):
-                row = {'foo': i}
-                rows.append(row)
-            count += 1
-            print("loop count:", count)
-            cursor.executemany(insert, rows)
-            connection.commit()
-        except psycopg2.IntegrityError:
-            connection.rollback()
-
-def noleak():
-    """rows created once, before the loop"""
-    rows = []
-    for i in range(1, 100):
-        row = {'foo': i}
-        rows.append(row)
-    count = 0
-    while 1:
-        try:
-            count += 1
-            print("loop count:", count)
-            cursor.executemany(insert, rows)
-            connection.commit()
-        except psycopg2.IntegrityError:
-            connection.rollback()
-
-usage = "%s requires one argument: 'leak' or 'noleak'" % sys.argv[0]
-try:
-    if 'leak' == sys.argv[1]:
-        run_function = leak
-    elif 'noleak' == sys.argv[1]:
-        run_function = noleak
-    else:
-        print(usage)
-        sys.exit()
-except IndexError:
-    print(usage)
-    sys.exit()
-
-# Run leak() or noleak(), whichever was indicated on the command line
-run_function()

sandbox/misc_dbapi_test.py

@@ -1,43 +0,0 @@
-#!/usr/bin/env python
-"""
-Test if the arguments object can be used with both positional and keyword
-arguments.
-"""
-
-class O(object):
-
-    def __init__(self, *args, **kwds):
-        self.args = args
-        self.kwds = kwds
-
-    def __getitem__(self, k):
-        if isinstance(k, int):
-            return self.args[k]
-        else:
-            return self.kwds[k]
-
-o = O('R%', second='S%')
-
-print(o[0])
-print(o['second'])
-
-
-#-------------------------------------------------------------------------------
-
-import psycopg2 as dbapi
-
-
-conn = dbapi.connect(database='test')
-
-
-
-cursor = conn.cursor()
-cursor.execute("""
-
-  SELECT * FROM location_pretty
-    WHERE keyname LIKE %s OR keyname LIKE %(second)s
-
-  """, (o,))
-
-for row in cursor:
-    print(row)

sandbox/named.py

@@ -1,31 +0,0 @@
-import psycopg2
-import psycopg2.extensions
-
-class Portal(psycopg2.extensions.cursor):
-    def __init__(self, name, curs):
-        psycopg2.extensions.cursor.__init__(
-            self, curs.connection, '"'+name+'"')
-
-CURSOR = psycopg2.extensions.new_type((1790,), "CURSOR", Portal)
-psycopg2.extensions.register_type(CURSOR)
-
-conn = psycopg2.connect("dbname=test")
-
-curs = conn.cursor()
-curs.execute("SELECT reffunc2()")
-
-portal = curs.fetchone()[0]
-print(portal.fetchone())
-print(portal.fetchmany(2))
-portal.scroll(0, 'absolute')
-print(portal.fetchall())
-
-
-#print curs.rowcount
-#print curs.statusmessage
-#print curs.fetchone()
-#print curs.rowcount
-#print curs.statusmessage
-#print curs.fetchone()
-#print curs.rowcount
-#print curs.statusmessage

sandbox/pbool.py

@@ -1,12 +0,0 @@
-class B(object):
-    def __init__(self, x):
-        if x: self._o = True
-        else: self._o = False
-    def __getattribute__(self, attr):
-        print("ga called", attr)
-        return object.__getattribute__(self, attr)
-    def _sqlquote(self):
-        if self._o:
-            return 'It is True'
-        else:
-            return 'It is False'

sandbox/stress.py

@@ -1,11 +0,0 @@
-import psycopg2
-import threading, os, time, gc
-
-for i in range(20000):
-    conn = psycopg2.connect('dbname=test')
-    del conn
-    if i%200 == 0:
-        datafile = os.popen('ps -p %s -o rss' % os.getpid())
-        line = datafile.readlines(2)[1].strip()
-        datafile.close()
-        print(str(i) + '\t' + line)

sandbox/stress2.py

@@ -1,42 +0,0 @@
-import psycopg2
-
-import threading, os, time, gc
-
-super_lock = threading.Lock()
-
-def f():
-    try:
-        conn = psycopg2.connect('dbname=testx')
-        #c = db.cursor()
-        #c.close()
-        #conn.close()
-        del conn
-    except:
-        pass
-        #print "ERROR"
-
-def g():
-    n = 30
-    k = 0
-    i = 1
-    while i > 0:
-        while n > 0:
-            threading.Thread(target=f).start()
-            time.sleep(0.001)
-            threading.Thread(target=f).start()
-            time.sleep(0.001)
-            threading.Thread(target=f).start()
-            n -= 1
-        while threading.activeCount() > 1:
-            time.sleep(0.01)
-        datafile = os.popen('ps -p %s -o rss' % os.getpid())
-        line = datafile.readlines(2)[1].strip()
-        datafile.close()
-        n = 30
-        print(str(k*n) + '\t' + line)
-        k += 1
-
-    while threading.activeCount()>1:
-        pass
-
-g()

sandbox/test.py

@@ -1,49 +0,0 @@
-import datetime
-import time
-import psycopg2
-
-#d = datetime.timedelta(12, 100, 9876)
-#print d.days, d.seconds, d.microseconds
-#print psycopg.adapt(d).getquoted()
-
-conn = psycopg2.connect("dbname=test")
-#conn.set_client_encoding("xxx")
-curs = conn.cursor()
-curs.execute("SELECT '2005-2-12'::date AS foo")
-print(curs.fetchall())
-curs.execute("SELECT '10:23:60'::time AS foo")
-print(curs.fetchall())
-curs.execute("SELECT '10:23:59.895342'::time AS foo")
-print(curs.fetchall())
-curs.execute("SELECT '0:0:12.31423'::time with time zone AS foo")
-print(curs.fetchall())
-curs.execute("SELECT '0:0:12+01:30'::time with time zone AS foo")
-print(curs.fetchall())
-curs.execute("SELECT '2005-2-12 10:23:59.895342'::timestamp AS foo")
-print(curs.fetchall())
-curs.execute("SELECT '2005-2-12 10:23:59.895342'::timestamp with time zone AS foo")
-print(curs.fetchall())
-
-#print curs.fetchmany(2)
-#print curs.fetchall()
-
-def sleep(curs):
-    while not curs.isready():
-        print(".")
-        time.sleep(.1)
-
-#curs.execute("""
-#    DECLARE zz INSENSITIVE SCROLL CURSOR WITH HOLD FOR
-#    SELECT now();
-#    FOR READ ONLY;""", async = 1)
-#curs.execute("SELECT now() AS foo", async=1);
-#sleep(curs)
-#print curs.fetchall()
-
-#curs.execute("""
-#    FETCH FORWARD 1 FROM zz;""", async = 1)
-#curs.execute("SELECT now() AS bar", async=1);
-#print curs.fetchall()
-
-#curs.execute("SELECT now() AS bar");
-#sleep(curs)

sandbox/test814.py

@@ -1,8 +0,0 @@
-import psycopg2
-import psycopg2.extras
-
-conn = psycopg2.connect("dbname=test")
-curs = conn.cursor()
-curs.execute("SELECT true AS foo WHERE 'a' in %s", (("aa", "bb"),))
-print(curs.fetchall())
-print(curs.query)

sandbox/test_copy2.py

@@ -1,42 +0,0 @@
-import psycopg2
-
-dbconn = psycopg2.connect(database="test",host="localhost",port="5432")
-query = """
-        CREATE TEMP TABLE data (
-            field01 char,
-            field02 varchar,
-            field03 varchar,
-            field04 varchar,
-            field05 varchar,
-            field06 varchar,
-            field07 varchar,
-            field08 varchar,
-            field09 numeric,
-            field10 integer,
-            field11 numeric,
-            field12 numeric,
-            field13 numeric,
-            field14 numeric,
-            field15 numeric,
-            field16 numeric,
-            field17 char,
-            field18 char,
-            field19 char,
-            field20 varchar,
-            field21 varchar,
-            field22 integer,
-            field23 char,
-            field24 char
-        );
-        """
-cursor = dbconn.cursor()
-cursor.execute(query)
-
-f = open('test_copy2.csv')
-cursor.copy_from(f, 'data', sep='|')
-f.close()
-
-dbconn.commit()
-
-cursor.close()
-dbconn.close()

sandbox/test_green_error.py

@@ -1,81 +0,0 @@
-#!/usr/bin/env python
-"""Test for issue #113: test with error during green processing
-"""
-
-DSN = 'dbname=test'
-
-import eventlet.patcher
-eventlet.patcher.monkey_patch()
-
-import os
-import signal
-from time import sleep
-
-import psycopg2
-from psycopg2 import extensions
-from eventlet.hubs import trampoline
-
-
-# register a test wait callback that fails if SIGHUP is received
-
-panic = []
-
-def wait_cb(conn):
-    """A wait callback useful to allow eventlet to work with Psycopg."""
-    while 1:
-        if panic:
-            raise Exception('whatever')
-
-        state = conn.poll()
-        if state == extensions.POLL_OK:
-            break
-        elif state == extensions.POLL_READ:
-            trampoline(conn.fileno(), read=True)
-        elif state == extensions.POLL_WRITE:
-            trampoline(conn.fileno(), write=True)
-        else:
-            raise psycopg2.OperationalError(
-                "Bad result from poll: %r" % state)
-
-extensions.set_wait_callback(wait_cb)
-
-
-# SIGHUP handler to inject a fail in the callback
-
-def handler(signum, frame):
-    panic.append(True)
-
-signal.signal(signal.SIGHUP, handler)
-
-
-# Simulate another green thread working
-
-def worker():
-    while 1:
-        print("I'm working")
-        sleep(1)
-
-eventlet.spawn(worker)
-
-
-# You can unplug the network cable etc. here.
-# Kill -HUP will raise an exception in the callback.
-
-print("PID", os.getpid())
-conn = psycopg2.connect(DSN)
-curs = conn.cursor()
-try:
-    for i in range(1000):
-        curs.execute("select %s, pg_sleep(1)", (i,))
-        r = curs.fetchone()
-        print("selected", r)
-
-except BaseException, e:
-    print("got exception:", e.__class__.__name__, e)
-
-if conn.closed:
-    print("the connection is closed")
-else:
-    conn.rollback()
-    curs.execute("select 1")
-    print(curs.fetchone())

sandbox/test_isready_connection_closed.py

@@ -1,31 +0,0 @@
-import gc
-import sys
-import os
-import signal
-import warnings
-import psycopg2
-
-print("Testing psycopg2 version %s" % psycopg2.__version__)
-
-dbname = os.environ.get('PSYCOPG2_TESTDB', 'psycopg2_test')
-conn = psycopg2.connect("dbname=%s" % dbname)
-curs = conn.cursor()
-curs.isready()
-
-print("Now restart the test postgresql server to drop all connections, press enter when done.")
-raw_input()
-
-try:
-    curs.isready() # No need to test return value
-    curs.isready()
-except:
-    print("Test passed")
-    sys.exit(0)
-
-if curs.isready():
-    print("Warning: looks like the connection didn't get killed. This test is probably in-effective")
-    print("Test inconclusive")
-    sys.exit(1)
-
-gc.collect() # used to error here
-print("Test Passed")

sandbox/test_notices.py

@@ -1,12 +0,0 @@
-def test():
-        import sys, os, thread, psycopg2
-        def test2():
-                while True:
-                        for filename in map(lambda m: getattr(m, "__file__", None), sys.modules.values()):
-                                os.stat("/dev/null")
-        connection = psycopg2.connect(database="test")
-        cursor = connection.cursor()
-        thread.start_new_thread(test2, ())
-        while True:
-                cursor.execute("COMMIT")
-test()

sandbox/textfloat.py

@@ -1,8 +0,0 @@
-import gtk
-import psycopg2
-
-o = psycopg2.connect("dbname=test")
-c = o.cursor()
-c.execute("SELECT 1.23::float AS foo")
-x = c.fetchone()[0]
-print(x, type(x))

sandbox/ticket58.py

@@ -1,73 +0,0 @@
-"""
-A script to reproduce the race condition described in ticket #58
-
-from https://bugzilla.redhat.com/show_bug.cgi?id=711095
-
-Results in the error:
-
-  python: Modules/gcmodule.c:277: visit_decref: Assertion `gc->gc.gc_refs != 0'
-  failed.
-
-on unpatched library.
-"""
-
-import threading
-import gc
-import time
-
-import psycopg2
-from StringIO import StringIO
-
-done = 0
-
-class GCThread(threading.Thread):
-    # A thread that sits in an infinite loop, forcing the garbage collector
-    # to run
-    def run(self):
-        global done
-        while not done:
-            gc.collect()
-            time.sleep(0.1) # give the other thread a chance to run
-
-gc_thread = GCThread()
-
-
-# This assumes a pre-existing db named "test", with:
-#   "CREATE TABLE test (id serial PRIMARY KEY, num integer, data varchar);"
-
-conn = psycopg2.connect("dbname=test user=postgres")
-cur = conn.cursor()
-
-# Start the other thread, running the GC regularly
-gc_thread.start()
-
-# Now do lots of "cursor.copy_from" calls:
-print("copy_from")
-for i in range(1000):
-    f = StringIO("42\tfoo\n74\tbar\n")
-    cur.copy_from(f, 'test', columns=('num', 'data'))
-    # Assuming the other thread gets a chance to run during this call, expect a
-    # build of python (with assertions enabled) to bail out here with:
-    #    python: Modules/gcmodule.c:277: visit_decref: Assertion `gc->gc.gc_refs != 0' failed.
-
-# Also exercise the copy_to code path
-print("copy_to")
-cur.execute("truncate test")
-f = StringIO("42\tfoo\n74\tbar\n")
-cur.copy_from(f, 'test', columns=('num', 'data'))
-for i in range(1000):
-    f = StringIO()
-    cur.copy_to(f, 'test', columns=('num', 'data'))
-
-# And copy_expert too
-print("copy_expert")
-cur.execute("truncate test")
-for i in range(1000):
-    f = StringIO("42\tfoo\n74\tbar\n")
-    cur.copy_expert("copy test to stdout", f)
-
-# Terminate the GC thread's loop:
-done = 1
-
-cur.close()
-conn.close()

sandbox/trigger-commit-fail.py

@@ -1,44 +0,0 @@
-import psycopg2
-import traceback
-
-# Change the table here to something the user can create tables in ...
-db = psycopg2.connect('dbname=test')
-
-cursor = db.cursor()
-
-print('Creating tables and sample data')
-
-cursor.execute('''
-  CREATE TEMPORARY TABLE foo (
-    id int PRIMARY KEY
-  )''')
-cursor.execute('''
-  CREATE TEMPORARY TABLE bar (
-    id int PRIMARY KEY,
-    foo_id int,
-    CONSTRAINT bar_foo_fk FOREIGN KEY (foo_id) REFERENCES foo(id) DEFERRABLE
-  )''')
-cursor.execute('INSERT INTO foo VALUES (1)')
-cursor.execute('INSERT INTO bar VALUES (1, 1)')
-
-db.commit()
-
-print('Deferring constraint and breaking referential integrity')
-cursor.execute('SET CONSTRAINTS bar_foo_fk DEFERRED')
-cursor.execute('UPDATE bar SET foo_id = 42 WHERE id = 1')
-
-print('Committing (this should fail)')
-try:
-    db.commit()
-except:
-    traceback.print_exc()
-
-print('Rolling back connection')
-db.rollback()
-
-print('Running a trivial query')
-try:
-    cursor.execute('SELECT TRUE')
-except:
-    traceback.print_exc()
-print('db.closed:', db.closed)

sandbox/trigger_double_dealloc.py

@@ -1,63 +0,0 @@
-from __future__ import print_function
-
-import psycopg2, psycopg2.extensions
-import threading
-import gc
-import time
-import sys
-
-# inherit psycopg2 connection class just so that
-# garbage collector enters the tp_clear code path
-# in delete_garbage()
-
-class my_connection(psycopg2.extensions.connection):
-    pass
-
-class db_user(threading.Thread):
-    def run(self):
-        conn2 = psycopg2.connect(sys.argv[1], connection_factory=my_connection)
-        cursor = conn2.cursor()
-        cursor.execute("UPDATE test_psycopg2_dealloc SET a = 3", async=1)
-
-        # the conn2 desctructor will block indefinitely
-        # on the completion of the query
-        # (and it will not be holding the GIL during that time)
-        print("begin conn2 del", file=sys.stderr)
-        del cursor, conn2
-        print("end conn2 del", file=sys.stderr)
-
-def main():
-    # lock out a db row
-    conn1 = psycopg2.connect(sys.argv[1], connection_factory=my_connection)
-    cursor = conn1.cursor()
-    cursor.execute("DROP TABLE IF EXISTS test_psycopg2_dealloc")
-    cursor.execute("CREATE TABLE test_psycopg2_dealloc (a int)")
-    cursor.execute("INSERT INTO test_psycopg2_dealloc VALUES (1)")
-    conn1.commit()
-    cursor.execute("UPDATE test_psycopg2_dealloc SET a = 2", async=1)
-
-    # concurrent thread trying to access the locked row
-    db_user().start()
-
-    # eventually, a gc.collect run will happen
-    # while the conn2 is inside conn_close()
-    # but this second dealloc won't get blocked
-    # as it will avoid conn_close()
-    for i in range(10):
-        if gc.collect():
-            print("garbage collection done", file=sys.stderr)
-            break
-        time.sleep(1)
-
-    # we now unlock the row by invoking
-    # the desctructor of conn1. This will permit the
-    # concurrent thread destructor of conn2 to
-    # continue and it will end up trying to free
-    # self->dsn a second time.
-    print("begin conn1 del", file=sys.stderr)
-    del cursor, conn1
-    print("end conn1 del", file=sys.stderr)
-
-
-if __name__ == '__main__':
-    main()

sandbox/typecrash.py

@@ -1,7 +0,0 @@
-import psycopg2.extensions
-
-print(dir(psycopg2._psycopg))
-print(psycopg2.extensions.new_type(
-    (600,), "POINT", lambda oids, name, fun: None))
-print("ciccia ciccia")
-print(psycopg2._psycopg)

sandbox/tzhalf.py

@@ -1,9 +0,0 @@
-import datetime
-import time
-import psycopg2
-
-conn = psycopg2.connect("dbname=test")
-curs = conn.cursor()
-curs.execute("set timezone = 'Asia/Calcutta'")
-curs.execute("SELECT now()")
-print(curs.fetchone()[0])

sandbox/valgrind-python.supp

@@ -1,486 +0,0 @@
-#
-# This is a valgrind suppression file that should be used when using valgrind.
-#
-#  Here's an example of running valgrind:
-#
-#	cd python/dist/src
-#	valgrind --tool=memcheck --suppressions=Misc/valgrind-python.supp \
-#		./python -E -tt ./Lib/test/regrtest.py -u bsddb,network
-#
-# You must edit Objects/obmalloc.c and uncomment Py_USING_MEMORY_DEBUGGER
-# to use the preferred suppressions with Py_ADDRESS_IN_RANGE.
-#
-# If you do not want to recompile Python, you can uncomment
-# suppressions for PyObject_Free and PyObject_Realloc.
-#
-# See Misc/README.valgrind for more information.
-
-# all tool names: Addrcheck,Memcheck,cachegrind,helgrind,massif
-{
-   ADDRESS_IN_RANGE/Invalid read of size 4
-   Memcheck:Addr4
-   fun:Py_ADDRESS_IN_RANGE
-}
-
-{
-   ADDRESS_IN_RANGE/Invalid read of size 4
-   Memcheck:Value4
-   fun:Py_ADDRESS_IN_RANGE
-}
-
-{
-   ADDRESS_IN_RANGE/Invalid read of size 8 (x86_64)
-   Memcheck:Value8
-   fun:Py_ADDRESS_IN_RANGE
-}
-
-{
-   ADDRESS_IN_RANGE/Conditional jump or move depends on uninitialised value
-   Memcheck:Cond
-   fun:Py_ADDRESS_IN_RANGE
-}
-
-{
-   ADDRESS_IN_RANGE/Invalid read of size 4
-   Memcheck:Addr4
-   fun:PyObject_Free
-}
-
-{
-   ADDRESS_IN_RANGE/Invalid read of size 4
-   Memcheck:Value4
-   fun:PyObject_Free
-}
-
-{
-   ADDRESS_IN_RANGE/Conditional jump or move depends on uninitialised value
-   Memcheck:Cond
-   fun:PyObject_Free
-}
-
-{
-   ADDRESS_IN_RANGE/Invalid read of size 4
-   Memcheck:Addr4
-   fun:PyObject_Realloc
-}
-
-{
-   ADDRESS_IN_RANGE/Invalid read of size 4
-   Memcheck:Value4
-   fun:PyObject_Realloc
-}
-
-{
-   ADDRESS_IN_RANGE/Conditional jump or move depends on uninitialised value
-   Memcheck:Cond
-   fun:PyObject_Realloc
-}
-
-###
-### All the suppressions below are for errors that occur within libraries
-### that Python uses.  The problems to not appear to be related to Python's
-### use of the libraries.
-###
-{
-   GDBM problems, see test_gdbm
-   Memcheck:Param
-   write(buf)
-   fun:write
-   fun:gdbm_open
-
-}
-
-{
-   Avoid problem in libc on gentoo
-   Memcheck:Cond
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-}
-
-{
-   Avoid problem in glibc on gentoo
-   Memcheck:Addr8
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/libdl-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/libdl-2.3.5.so
-   fun:dlopen
-}
-
-{
-   Avoid problem in glibc on gentoo
-   Memcheck:Addr8
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/libdl-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/libdl-2.3.5.so
-   fun:dlopen
-}
-
-{
-   Avoid problem in glibc on gentoo
-   Memcheck:Cond
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/libdl-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/libdl-2.3.5.so
-   fun:dlopen
-}
-
-{
-   Avoid problem in glibc on gentoo
-   Memcheck:Cond
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/libdl-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/libdl-2.3.5.so
-   fun:dlopen
-}
-
-{
-   Avoid problems w/readline doing a putenv and leaking on exit
-   Memcheck:Leak
-   fun:malloc
-   fun:xmalloc
-   fun:sh_set_lines_and_columns
-   fun:_rl_get_screen_size
-   fun:_rl_init_terminal_io
-   obj:/lib/libreadline.so.4.3
-   fun:rl_initialize
-   fun:setup_readline
-   fun:initreadline
-   fun:_PyImport_LoadDynamicModule
-   fun:load_module
-   fun:import_submodule
-   fun:load_next
-   fun:import_module_ex
-   fun:PyImport_ImportModuleEx
-}
-
-{
-   Mysterious leak that seems to deal w/pthreads
-   Memcheck:Leak
-   fun:calloc
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_allocate_tls
-   fun:__pthread_initialize_minimal
-}
-
-{
-   Mysterious leak that seems to deal w/pthreads
-   Memcheck:Leak
-   fun:memalign
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_allocate_tls
-   fun:__pthread_initialize_minimal
-}
-
-###
-### These occur from somewhere within the SSL, when running
-###  test_socket_sll.  They are too general to leave on by default.
-###
-###{
-###   somewhere in SSL stuff
-###   Memcheck:Cond
-###   fun:memset
-###}
-###{
-###   somewhere in SSL stuff
-###   Memcheck:Value4
-###   fun:memset
-###}
-###
-###{
-###   somewhere in SSL stuff
-###   Memcheck:Cond
-###   fun:MD5_Update
-###}
-###
-###{
-###   somewhere in SSL stuff
-###   Memcheck:Value4
-###   fun:MD5_Update
-###}
-
-#
-# All of these problems come from using test_socket_ssl
-#
-{
-   from test_socket_ssl
-   Memcheck:Cond
-   fun:BN_bin2bn
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Cond
-   fun:BN_num_bits_word
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Value4
-   fun:BN_num_bits_word
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Cond
-   fun:BN_mod_exp_mont_word
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Cond
-   fun:BN_mod_exp_mont
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Param
-   write(buf)
-   fun:write
-   obj:/usr/lib/libcrypto.so.0.9.7
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Cond
-   fun:RSA_verify
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Value4
-   fun:RSA_verify
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Value4
-   fun:DES_set_key_unchecked
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Value4
-   fun:DES_encrypt2
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Cond
-   obj:/usr/lib/libssl.so.0.9.7
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Value4
-   obj:/usr/lib/libssl.so.0.9.7
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Cond
-   fun:BUF_MEM_grow_clean
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Cond
-   fun:memcpy
-   fun:ssl3_read_bytes
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Cond
-   fun:SHA1_Update
-}
-
-{
-   from test_socket_ssl
-   Memcheck:Value4
-   fun:SHA1_Update
-}
-
-
-
-{
-   Debian unstable with libc-i686 suppressions
-   Memcheck:Cond
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   fun:dlopen
-   fun:_PyImport_GetDynLoadFunc
-   fun:_PyImport_LoadDynamicModule
-}
-
-{
-   Debian unstable with libc-i686 suppressions
-   Memcheck:Cond
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   fun:dlopen
-   fun:_PyImport_GetDynLoadFunc
-   fun:_PyImport_LoadDynamicModule
-}
-
-{
-   Debian unstable with libc-i686 suppressions
-   Memcheck:Addr4
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   fun:dlopen
-   fun:_PyImport_GetDynLoadFunc
-   fun:_PyImport_LoadDynamicModule
-}
-
-{
-   Debian unstable with libc-i686 suppressions
-   Memcheck:Addr4
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-}
-
-{
-   Debian unstable with libc-i686 suppressions
-   Memcheck:Cond
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   fun:dlopen
-   fun:_PyImport_GetDynLoadFunc
-   fun:_PyImport_LoadDynamicModule
-   obj:/usr/bin/python2.3
-   obj:/usr/bin/python2.3
-}
-
-{
-   Debian unstable with libc-i686 suppressions
-   Memcheck:Cond
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:__libc_dlopen_mode
-   fun:__nss_lookup_function
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   fun:__nss_passwd_lookup
-   fun:getpwuid_r
-   fun:pqGetpwuid
-}
-
-{
-   Debian unstable with libc-i686 suppressions
-   Memcheck:Cond
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:__libc_dlopen_mode
-   fun:__nss_lookup_function
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   fun:__nss_passwd_lookup
-}
-
-{
-   Debian unstable with libc-i686 suppressions
-   Memcheck:Addr4
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:__libc_dlopen_mode
-   fun:__nss_lookup_function
-   obj:/lib/tls/i686/cmov/libnss_compat-2.3.5.so
-   fun:_nss_compat_getpwuid_r
-}
-
-{
-   Debian unstable with libc-i686 suppressions
-   Memcheck:Cond
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libc-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   fun:_dl_open
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   obj:/lib/ld-2.3.5.so
-   obj:/lib/tls/i686/cmov/libdl-2.3.5.so
-   fun:dlopen
-   fun:_PyImport_GetDynLoadFunc
-   fun:_PyImport_LoadDynamicModule
-   obj:/usr/bin/python2.4
-   obj:/usr/bin/python2.4
-}

scripts/make_errorcodes.py

@@ -33,7 +33,7 @@ def main():
     file_start = read_base_file(filename)
     # If you add a version to the list fix the docs (in errorcodes.rst)
     classes, errors = fetch_errors(
-        ['9.1', '9.2', '9.3', '9.4', '9.5', '9.6', '10'])
+        ['9.1', '9.2', '9.3', '9.4', '9.5', '9.6', '10', '11'])
 
     f = open(filename, "w")
     for line in file_start:
@@ -111,7 +111,7 @@ def fetch_errors(versions):
 
         # TODO: this error was added in PG 10 beta 1 but dropped in the
         # final release. It doesn't harm leaving it in the file. Check if it
-        # will be added back in PG 11.
+        # will be added back in PG 12.
         # https://github.com/postgres/postgres/commit/28e0727076
         errors['55']['55P04'] = 'UNSAFE_NEW_ENUM_VALUE_USAGE'
 

scripts/refcounter.py

@@ -19,6 +19,7 @@ script exits with error 1.
 # License for more details.
 from __future__ import print_function
 
+import argparse
 import gc
 import sys
 import difflib
@@ -62,19 +63,16 @@ def main():
 
 
 def parse_args():
-    import optparse
+    parser = argparse.ArgumentParser(description=__doc__)
-
+    parser.add_argument('--nruns', type=int, metavar="N", default=3,
-    parser = optparse.OptionParser(description=__doc__)
+        help="number of test suite runs [default: %(default)d]")
-    parser.add_option('--nruns', type='int', metavar="N", default=3,
+    parser.add_argument('--suite', metavar="NAME",
-        help="number of test suite runs [default: %default]")
-    parser.add_option('--suite', metavar="NAME",
         help="the test suite to run (e.g. 'test_cursor'). [default: all]")
-    parser.add_option('--objs', metavar="TYPE",
+    parser.add_argument('--objs', metavar="TYPE",
         help="in case of leaks, print a report of object TYPE "
             "(support still incomplete)")
 
-    opt, args = parser.parse_args()
+    return parser.parse_args()
-    return opt
 
 
 def dump(i, opt):

scripts/travis_prepare.sh

@@ -38,8 +38,8 @@ create () {
     export PGBIN="$PGDIR/bin"
 
     # install postgres versions not available on the image
-    if (( "$VERNUM" < 902 || "$VERNUM" > 906 )); then
+    if [[ ! -d "${PGDIR}" ]]; then
-        wget -O - http://initd.org/psycopg/upload/postgresql/postgresql-${PACKAGE}.tar.bz2 \
+        wget -O - http://initd.org/psycopg/upload/postgresql/postgresql-${PACKAGE}-$(lsb_release -cs).tar.bz2 \
             | sudo tar xjf - -C /usr/lib/postgresql
     fi
 
@@ -109,7 +109,6 @@ if [[ -z "$DONT_TEST_PRESENT" ]]; then
     create 9.6
     create 9.5
     create 9.4
-    create 9.3
 fi
 
 # Unsupported postgres versions that we still support
@@ -124,6 +123,7 @@ if [[ -n "$TEST_PAST" ]]; then
     create 9.0
     create 9.1
     create 9.2
+    create 9.3
 fi
 
 # Postgres built from master

scripts/travis_test.sh

@@ -50,12 +50,12 @@ if [[ -z "$DONT_TEST_PRESENT" ]]; then
     run_test 9.6
     run_test 9.5
     run_test 9.4
-    run_test 9.3
 fi
 
 # Unsupported postgres versions that we still support
 # Images built by https://github.com/psycopg/psycopg2-wheels/tree/build-dinosaurs
 if [[ -n "$TEST_PAST" ]]; then
+    run_test 9.3
     run_test 9.2
     run_test 9.1
     run_test 9.0

setup.py

@@ -32,10 +32,7 @@ import os
 import sys
 import re
 import subprocess
-try:
+from setuptools import setup, Extension
-    from setuptools import setup, Extension
-except ImportError:
-    from distutils.core import setup, Extension
 from distutils.command.build_ext import build_ext
 from distutils.sysconfig import get_python_inc
 from distutils.ccompiler import get_default_compiler
@@ -47,7 +44,7 @@ try:
 except ImportError:
     import ConfigParser as configparser
 
-# Take a look at http://www.python.org/dev/peps/pep-0440/
+# Take a look at https://www.python.org/dev/peps/pep-0440/
 # for a consistent versioning pattern.
 
 PSYCOPG_VERSION = '2.8.dev0'
@@ -67,6 +64,7 @@ Programming Language :: Python :: 3
 Programming Language :: Python :: 3.4
 Programming Language :: Python :: 3.5
 Programming Language :: Python :: 3.6
+Programming Language :: Python :: 3.7
 Programming Language :: Python :: Implementation :: CPython
 Programming Language :: C
 Programming Language :: SQL
@@ -415,13 +413,7 @@ For further information please check the 'doc/src/install.rst' file (also at
             self.library_dirs.append(pg_config_helper.query("libdir"))
             self.include_dirs.append(pg_config_helper.query("includedir"))
             self.include_dirs.append(pg_config_helper.query("includedir-server"))
-            try:
-                # Here we take a conservative approach: we suppose that
-                # *at least* PostgreSQL 7.4 is available (this is the only
-                # 7.x series supported by psycopg 2)
             pgversion = pg_config_helper.query("version").split()[1]
-            except Exception:
-                pgversion = "7.4.0"
 
             verre = re.compile(
                 r"(\d+)(?:\.(\d+))?(?:(?:\.(\d+))|(devel|(?:alpha|beta|rc)\d+))?")
@@ -494,7 +486,7 @@ sources = [
     'libpq_support.c', 'win32_support.c', 'solaris_support.c',
 
     'connection_int.c', 'connection_type.c',
-    'cursor_int.c', 'cursor_type.c',
+    'cursor_int.c', 'cursor_type.c', 'column_type.c',
     'replication_connection_type.c',
     'replication_cursor_type.c',
     'replication_message_type.c',
@@ -516,7 +508,7 @@ depends = [
     'replication_connection.h',
     'replication_cursor.h',
     'replication_message.h',
-    'notify.h', 'pqpath.h', 'xid.h',
+    'notify.h', 'pqpath.h', 'xid.h', 'column.h',
     'libpq_support.h', 'win32_support.h',
 
     'adapter_asis.h', 'adapter_binary.h', 'adapter_datetime.h',

tests/test_async.py

@@ -450,6 +450,12 @@ class AsyncTests(ConnectingTestCase):
         else:
             self.fail("no exception raised")
 
+    @skip_before_postgres(8, 2)
+    def test_copy_no_hang(self):
+        cur = self.conn.cursor()
+        cur.execute("copy (select 1) to stdout")
+        self.assertRaises(psycopg2.ProgrammingError, self.wait, self.conn)
+
 
 def test_suite():
     return unittest.TestLoader().loadTestsFromName(__name__)

tests/test_connection.py

@@ -35,13 +35,11 @@ import psycopg2.errorcodes
 from psycopg2 import extensions as ext
 
 from .testutils import (
-    unittest, decorate_all_tests, skip_if_no_superuser,
+    unittest, decorate_all_tests, skip_if_no_superuser, skip_before_postgres,
-    skip_before_postgres, skip_after_postgres, skip_before_libpq,
+    skip_after_postgres, skip_before_libpq, skip_after_libpq,
-    ConnectingTestCase, skip_if_tpc_disabled, skip_if_windows, slow,
+    ConnectingTestCase, skip_if_tpc_disabled, skip_if_windows, slow)
-    libpq_version
-)
 
-from .testconfig import dsn, dbname
+from .testconfig import dbhost, dsn, dbname
 
 
 class ConnectionTests(ConnectingTestCase):
@@ -805,6 +803,14 @@ class IsolationLevelsTestCase(ConnectingTestCase):
         self.assertRaises(ValueError, setattr, self.conn, 'isolation_level', 5)
         self.assertRaises(ValueError, setattr, self.conn, 'isolation_level', 'bah')
 
+    def test_attribs_segfault(self):
+        # bug #790
+        for i in range(10000):
+            self.conn.autocommit
+            self.conn.readonly
+            self.conn.deferrable
+            self.conn.isolation_level
+
 
 class ConnectionTwoPhaseTests(ConnectingTestCase):
     def setUp(self):
@@ -1411,55 +1417,37 @@ class TransactionControlTests(ConnectingTestCase):
 class TestEncryptPassword(ConnectingTestCase):
     @skip_before_postgres(10)
     def test_encrypt_password_post_9_6(self):
-        cur = self.conn.cursor()
-        cur.execute("SHOW password_encryption;")
-        server_encryption_algorithm = cur.fetchone()[0]
-
         # MD5 algorithm
         self.assertEqual(
             ext.encrypt_password('psycopg2', 'ashesh', self.conn, 'md5'),
-            'md594839d658c28a357126f105b9cb14cfc'
+            'md594839d658c28a357126f105b9cb14cfc')
-        )
 
         # keywords
         self.assertEqual(
             ext.encrypt_password(
                 password='psycopg2', user='ashesh',
                 scope=self.conn, algorithm='md5'),
-            'md594839d658c28a357126f105b9cb14cfc'
+            'md594839d658c28a357126f105b9cb14cfc')
-        )
+
-        if libpq_version() < 100000:
+    @skip_before_postgres(10)
-            self.assertRaises(
+    def test_encrypt_server(self):
-                psycopg2.NotSupportedError,
+        cur = self.conn.cursor()
-                ext.encrypt_password, 'psycopg2', 'ashesh', self.conn,
+        cur.execute("SHOW password_encryption;")
-                'scram-sha-256'
+        server_encryption_algorithm = cur.fetchone()[0]
-            )
+
-        else:
         enc_password = ext.encrypt_password(
-                'psycopg2', 'ashesh', self.conn
+            'psycopg2', 'ashesh', self.conn)
-            )
+
         if server_encryption_algorithm == 'md5':
             self.assertEqual(
-                    enc_password, 'md594839d658c28a357126f105b9cb14cfc'
+                enc_password, 'md594839d658c28a357126f105b9cb14cfc')
-                )
         elif server_encryption_algorithm == 'scram-sha-256':
             self.assertEqual(enc_password[:14], 'SCRAM-SHA-256$')
 
         self.assertEqual(
             ext.encrypt_password(
                 'psycopg2', 'ashesh', self.conn, 'scram-sha-256'
-                )[:14], 'SCRAM-SHA-256$'
+            )[:14], 'SCRAM-SHA-256$')
-            )
-
-        self.assertRaises(psycopg2.ProgrammingError,
-            ext.encrypt_password, 'psycopg2', 'ashesh', self.conn, 'abc')
-
-    @skip_after_postgres(10)
-    def test_encrypt_password_pre_10(self):
-        self.assertEqual(
-            ext.encrypt_password('psycopg2', 'ashesh', self.conn),
-            'md594839d658c28a357126f105b9cb14cfc'
-        )
 
         self.assertRaises(psycopg2.ProgrammingError,
             ext.encrypt_password, 'psycopg2', 'ashesh', self.conn, 'abc')
@@ -1467,16 +1455,27 @@ class TestEncryptPassword(ConnectingTestCase):
     def test_encrypt_md5(self):
         self.assertEqual(
             ext.encrypt_password('psycopg2', 'ashesh', algorithm='md5'),
-            'md594839d658c28a357126f105b9cb14cfc'
+            'md594839d658c28a357126f105b9cb14cfc')
-        )
 
+    @skip_before_libpq(10)
+    def test_encrypt_bad_libpq_10(self):
+        self.assertRaises(psycopg2.ProgrammingError,
+            ext.encrypt_password, 'psycopg2', 'ashesh', self.conn, 'abc')
+
+    @skip_after_libpq(10)
+    def test_encrypt_bad_before_libpq_10(self):
+        self.assertRaises(psycopg2.NotSupportedError,
+            ext.encrypt_password, 'psycopg2', 'ashesh', self.conn, 'abc')
+
+    @skip_before_libpq(10)
     def test_encrypt_scram(self):
-        if libpq_version() >= 100000:
         self.assert_(
             ext.encrypt_password(
                 'psycopg2', 'ashesh', self.conn, 'scram-sha-256')
             .startswith('SCRAM-SHA-256$'))
-        else:
+
+    @skip_after_libpq(10)
+    def test_encrypt_scram_pre_10(self):
         self.assertRaises(psycopg2.NotSupportedError,
             ext.encrypt_password,
             password='psycopg2', user='ashesh',
@@ -1691,6 +1690,19 @@ while True:
         self.assert_(not err, err)
 
 
+class TestConnectionProps(ConnectingTestCase):
+    def test_host(self):
+        self.assertFalse(self.conn.closed)
+        expected = dbhost if dbhost else "/"
+        self.assertIn(expected, self.conn.host)
+
+    def test_host_readonly(self):
+        self.assertFalse(self.conn.closed)
+        with self.assertRaises(AttributeError):
+            self.conn.host = 'override'
+
+
+
 def test_suite():
     return unittest.TestLoader().loadTestsFromName(__name__)
 

tests/test_cursor.py

@@ -377,7 +377,7 @@ class CursorTests(ConnectingTestCase):
         for i, rec in enumerate(curs):
             self.assertEqual(i + 1, curs.rownumber)
 
-    def test_namedtuple_description(self):
+    def test_description_attribs(self):
         curs = self.conn.cursor()
         curs.execute("""select
             3.14::decimal(10,2) as pi,
@@ -412,6 +412,27 @@ class CursorTests(ConnectingTestCase):
         self.assertEqual(c.precision, None)
         self.assertEqual(c.scale, None)
 
+    def test_description_extra_attribs(self):
+        curs = self.conn.cursor()
+        curs.execute("""
+            create table testcol (
+                pi decimal(10,2),
+                hi text)
+            """)
+        curs.execute("select oid from pg_class where relname = %s", ('testcol',))
+        oid = curs.fetchone()[0]
+
+        curs.execute("insert into testcol values (3.14, 'hello')")
+        curs.execute("select hi, pi, 42 from testcol")
+        self.assertEqual(curs.description[0].table_oid, oid)
+        self.assertEqual(curs.description[0].table_column, 2)
+
+        self.assertEqual(curs.description[1].table_oid, oid)
+        self.assertEqual(curs.description[1].table_column, 1)
+
+        self.assertEqual(curs.description[2].table_oid, None)
+        self.assertEqual(curs.description[2].table_column, None)
+
     def test_pickle_description(self):
         curs = self.conn.cursor()
         curs.execute('SELECT 1 AS foo')
@@ -436,11 +457,24 @@ class CursorTests(ConnectingTestCase):
         self.assertEqual([(2,), (3,), (4,)], cur2.fetchmany(3))
         self.assertEqual([(5,), (6,), (7,)], cur2.fetchall())
 
-    @skip_before_postgres(8, 0)
+    @skip_before_postgres(8, 2)
     def test_named_noop_close(self):
         cur = self.conn.cursor('test')
         cur.close()
 
+    @skip_before_postgres(8, 2)
+    def test_stolen_named_cursor_close(self):
+        cur1 = self.conn.cursor()
+        cur1.execute("DECLARE test CURSOR WITHOUT HOLD "
+            " FOR SELECT generate_series(1,7)")
+        cur2 = self.conn.cursor('test')
+        cur2.close()
+
+        cur1.execute("DECLARE test CURSOR WITHOUT HOLD "
+            " FOR SELECT generate_series(1,7)")
+        cur2 = self.conn.cursor('test')
+        cur2.close()
+
     @skip_before_postgres(8, 0)
     def test_scroll(self):
         cur = self.conn.cursor()
@@ -491,7 +525,7 @@ class CursorTests(ConnectingTestCase):
     def test_bad_subclass(self):
         # check that we get an error message instead of a segfault
         # for badly written subclasses.
-        # see http://stackoverflow.com/questions/22019341/
+        # see https://stackoverflow.com/questions/22019341/
         class StupidCursor(psycopg2.extensions.cursor):
             def __init__(self, *args, **kwargs):
                 # I am stupid so not calling superclass init

tests/test_green.py

@@ -27,7 +27,7 @@ import psycopg2
 import psycopg2.extensions
 import psycopg2.extras
 
-from .testutils import ConnectingTestCase, slow
+from .testutils import ConnectingTestCase, skip_before_postgres, slow
 
 
 class ConnectionStub(object):
@@ -111,6 +111,12 @@ class GreenTestCase(ConnectingTestCase):
         curs.execute("select 1")
         self.assertEqual(curs.fetchone()[0], 1)
 
+    @skip_before_postgres(8, 2)
+    def test_copy_no_hang(self):
+        cur = self.conn.cursor()
+        self.assertRaises(psycopg2.ProgrammingError,
+            cur.execute, "copy (select 1) to stdout")
+
 
 class CallbackErrorTestCase(ConnectingTestCase):
     def setUp(self):

tests/test_module.py

@@ -173,8 +173,8 @@ class ExceptionsTestCase(ConnectingTestCase):
                 'column_name', 'constraint_name', 'context', 'datatype_name',
                 'internal_position', 'internal_query', 'message_detail',
                 'message_hint', 'message_primary', 'schema_name', 'severity',
-                'source_file', 'source_function', 'source_line', 'sqlstate',
+                'severity_nonlocalized', 'source_file', 'source_function',
-                'statement_position', 'table_name', ]:
+                'source_line', 'sqlstate', 'statement_position', 'table_name', ]:
             v = getattr(diag, attr)
             if v is not None:
                 self.assert_(isinstance(v, str))
@@ -276,6 +276,15 @@ class ExceptionsTestCase(ConnectingTestCase):
         self.assertEqual(e.diag.constraint_name, "chk_eq1")
         self.assertEqual(e.diag.datatype_name, None)
 
+    @skip_before_postgres(9, 6)
+    def test_9_6_diagnostics(self):
+        cur = self.conn.cursor()
+        try:
+            cur.execute("select 1 from nosuchtable")
+        except psycopg2.Error as exc:
+            e = exc
+        self.assertEqual(e.diag.severity_nonlocalized, 'ERROR')
+
     def test_pickle(self):
         import pickle
         cur = self.conn.cursor()

tests/test_quote.py

@@ -46,8 +46,8 @@ class QuotingTestCase(ConnectingTestCase):
     The tests also check that no warning is raised ('escape_string_warning'
     should be on).
 
-    http://www.postgresql.org/docs/current/static/sql-syntax-lexical.html#SQL-SYNTAX-STRINGS
+    https://www.postgresql.org/docs/current/static/sql-syntax-lexical.html#SQL-SYNTAX-STRINGS
-    http://www.postgresql.org/docs/current/static/runtime-config-compatible.html
+    https://www.postgresql.org/docs/current/static/runtime-config-compatible.html
     """
     def test_string(self):
         data = """some data with \t chars

tests/test_sql.py

@@ -24,9 +24,8 @@
 
 import datetime as dt
 import unittest
-from .testutils import (ConnectingTestCase,
+from .testutils import (
-    skip_before_postgres, skip_before_python, skip_copy_if_green,
+    ConnectingTestCase, skip_before_postgres, skip_copy_if_green, StringIO)
-    StringIO)
 
 import psycopg2
 from psycopg2 import sql
@@ -181,26 +180,43 @@ class IdentifierTests(ConnectingTestCase):
     def test_init(self):
         self.assert_(isinstance(sql.Identifier('foo'), sql.Identifier))
         self.assert_(isinstance(sql.Identifier(u'foo'), sql.Identifier))
+        self.assert_(isinstance(sql.Identifier('foo', 'bar', 'baz'), sql.Identifier))
+        self.assertRaises(TypeError, sql.Identifier)
         self.assertRaises(TypeError, sql.Identifier, 10)
         self.assertRaises(TypeError, sql.Identifier, dt.date(2016, 12, 31))
 
-    def test_string(self):
+    def test_strings(self):
+        self.assertEqual(sql.Identifier('foo').strings, ('foo',))
+        self.assertEqual(sql.Identifier('foo', 'bar').strings, ('foo', 'bar'))
+
+        # Legacy method
         self.assertEqual(sql.Identifier('foo').string, 'foo')
+        self.assertRaises(AttributeError,
+            getattr, sql.Identifier('foo', 'bar'), 'string')
 
     def test_repr(self):
         obj = sql.Identifier("fo'o")
         self.assertEqual(repr(obj), 'Identifier("fo\'o")')
         self.assertEqual(repr(obj), str(obj))
 
+        obj = sql.Identifier("fo'o", 'ba"r')
+        self.assertEqual(repr(obj), 'Identifier("fo\'o", \'ba"r\')')
+        self.assertEqual(repr(obj), str(obj))
+
     def test_eq(self):
         self.assert_(sql.Identifier('foo') == sql.Identifier('foo'))
+        self.assert_(sql.Identifier('foo', 'bar') == sql.Identifier('foo', 'bar'))
         self.assert_(sql.Identifier('foo') != sql.Identifier('bar'))
         self.assert_(sql.Identifier('foo') != 'foo')
         self.assert_(sql.Identifier('foo') != sql.SQL('foo'))
 
     def test_as_str(self):
-        self.assertEqual(sql.Identifier('foo').as_string(self.conn), '"foo"')
+        self.assertEqual(
-        self.assertEqual(sql.Identifier("fo'o").as_string(self.conn), '"fo\'o"')
+            sql.Identifier('foo').as_string(self.conn), '"foo"')
+        self.assertEqual(
+            sql.Identifier('foo', 'bar').as_string(self.conn), '"foo"."bar"')
+        self.assertEqual(
+            sql.Identifier("fo'o", 'ba"r').as_string(self.conn), '"fo\'o"."ba""r"')
 
     def test_join(self):
         self.assert_(not hasattr(sql.Identifier('foo'), 'join'))

tests/test_types_basic.py

@@ -167,6 +167,10 @@ class TypesBasicTests(ConnectingTestCase):
         curs.execute("select col from array_test where id = 2")
         self.assertEqual(curs.fetchone()[0], [])
 
+        # issue #788 (test commented out until issue fixed)
+        #curs.execute("select null = any(%s)", ([[]], ))
+        #self.assertFalse(curs.fetchone()[0])
+
     def testEmptyArrayNoCast(self):
         s = self.execute("SELECT '{}' AS foo")
         self.assertEqual(s, '{}')

tests/test_types_extras.py

@@ -1386,6 +1386,52 @@ class RangeTestCase(unittest.TestCase):
         r = Range(0, 4)
         self.assertEqual(loads(dumps(r)), r)
 
+    def test_str(self):
+        '''
+        Range types should have a short and readable ``str`` implementation.
+
+        Using ``repr`` for all string conversions can be very unreadable for
+        longer types like ``DateTimeTZRange``.
+        '''
+        from psycopg2.extras import Range
+
+        # Using the "u" prefix to make sure we have the proper return types in
+        # Python2
+        expected = [
+            u'(0, 4)',
+            u'[0, 4]',
+            u'(0, 4]',
+            u'[0, 4)',
+            u'empty',
+        ]
+        results = []
+
+        converter = unicode if sys.version_info < (3, 0) else str
+
+        for bounds in ('()', '[]', '(]', '[)'):
+            r = Range(0, 4, bounds=bounds)
+            results.append(converter(r))
+
+        r = Range(empty=True)
+        results.append(converter(r))
+        self.assertEqual(results, expected)
+
+    def test_str_datetime(self):
+        '''
+        Date-Time ranges should return a human-readable string as well on
+        string conversion.
+        '''
+        from psycopg2.extras import DateTimeTZRange
+        from datetime import datetime
+        from psycopg2.tz import FixedOffsetTimezone
+        converter = unicode if sys.version_info < (3, 0) else str
+        tz = FixedOffsetTimezone(-5*60, "EST")
+        r = DateTimeTZRange(datetime(2010, 1, 1, tzinfo=tz),
+                            datetime(2011, 1, 1, tzinfo=tz))
+        expected = u'[2010-01-01 00:00:00-05:00, 2011-01-01 00:00:00-05:00)'
+        result = converter(r)
+        self.assertEqual(result, expected)
+
 
 def skip_if_no_range(f):
     @wraps(f)

tests/test_with.py

@@ -215,7 +215,7 @@ class WithCursorTestCase(WithTestCase):
         else:
             self.fail("where is my exception?")
 
-    @skip_before_postgres(8, 0)
+    @skip_before_postgres(8, 2)
     def test_named_with_noop(self):
         with self.conn.cursor('named') as cur:
             pass

tests/testutils.py

@@ -50,7 +50,7 @@ else:
 
 # Silence warnings caused by the stubbornness of the Python unittest
 # maintainers
-# http://bugs.python.org/issue9424
+# https://bugs.python.org/issue9424
 if (not hasattr(unittest.TestCase, 'assert_')
         or unittest.TestCase.assert_ is not unittest.TestCase.assertTrue):
     # mavaff...

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{27,34,35,36}
+envlist = py{27,34,35,36,37}
 
 [testenv]
 commands = make check