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Document that LO64 is only available on Py 64 builds

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Daniele Varrazzo 2015-02-08 02:21:22 +00:00
parent f15e9d0cc8
commit 54ebf90fc6
1 changed files with 7 additions and 5 deletions
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doc/src/usage.rst
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@ -902,15 +902,17 @@ using the |lo_import|_ and |lo_export|_ libpq functions.
.. versionchanged:: 2.6 .. versionchanged:: 2.6
added support for large objects greated than 2GB. Note that the support is added support for large objects greated than 2GB. Note that the support is
enabled only if both these conditions are verified: enabled only if all the following conditions are verified:
- the extension was built against libpq at least 9.3 (you can check if - the Python build is 64 bits;
`psycopg2.__version__` contains the ``lo64`` flag); - the extension was built against at least libpq 9.3;
- the server version is at least PostgreSQL 9.3 - the server version is at least PostgreSQL 9.3
(`~connection.server_version` must be >= ``90300``). (`~connection.server_version` must be >= ``90300``).
If the contitions are not met several `!lobject` methods will fail if the If Psycopg was built with 64 bits large objects support (i.e. the first
arguments exceed 2GB. two contidions above are verified), the `psycopg2.__version__` constant
will contain the ``lo64`` flag. If any of the contition is not met
several `!lobject` methods will fail if the arguments exceed 2GB.