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Mention that with PgBouncer get_backend_pid() is not updated

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Close #956
This commit is contained in:
Daniele Varrazzo 2019-10-19 17:56:39 +01:00
parent 850c585501
commit 8a18ff7699
2 changed files with 6 additions and 4 deletions
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8
doc/src/connection.rst
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@ -117,7 +117,7 @@ The ``connection`` class
with a `~connection.commit()`/`~connection.rollback()` before
closing.
.. _PgBouncer: http://pgbouncer.projects.postgresql.org/
.. _PgBouncer: http://www.pgbouncer.org/
.. index::
@ -822,8 +822,10 @@ The ``connection`` class
Also available as `~connection.info`\ `!.`\
`~psycopg2.extensions.ConnectionInfo.backend_pid`.
Returns the process ID (PID) of the backend server process handling
this connection.
Returns the process ID (PID) of the backend server process *you
connected to*. Note that if you use a connection pool service such as
PgBouncer_ this value will not be updated if your connection is
switched to a different backend.
Note that the PID belongs to a process executing on the database
server host, not the local host!

2
psycopg/conninfo_type.c
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@ -362,7 +362,7 @@ socket_get(connInfoObject *self)
static const char backend_pid_doc[] =
"The process ID (PID) of the backend process handling this connection.\n"
"The process ID (PID) of the backend process you connected to.\n"
"\n"
":type: `!int`\n"
"\n"