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Fixed #27869 -- Added fastupdate and gin_pending_list_limit params to GinIndex.

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Thanks Tim Graham and Markus Holtermann for review.
This commit is contained in:
Mads Jensen 2017-05-30 23:17:32 +02:00 • committed by Tim Graham
parent 2503ad5154
commit de42adf4ff
5 changed files with 84 additions and 3 deletions
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16
docs/ref/contrib/postgres/indexes.txt
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@ -22,7 +22,7 @@ available from the ``django.contrib.postgres.indexes`` module.
``GinIndex``
============
.. class:: GinIndex()
.. class:: GinIndex(fields=[], name=None, fastupdate=None, gin_pending_list_limit=None)
Creates a `gin index
<https://www.postgresql.org/docs/current/static/gin.html>`_.
@ -34,3 +34,17 @@ available from the ``django.contrib.postgres.indexes`` module.
PostgreSQL. You can install it using the
:class:`~django.contrib.postgres.operations.BtreeGinExtension` migration
operation.
Set the ``fastupdate`` parameter to ``False`` to disable the `GIN Fast
Update Technique`_ that's enabled by default in PostgreSQL.
Provide an integer number of bytes to the gin_pending_list_limit_ parameter
to tune the maximum size of the GIN pending list which is used when
``fastupdate`` is enabled. This parameter requires PostgreSQL ≥ 9.5.
.. _GIN Fast Update Technique: https://www.postgresql.org/docs/current/static/gin-implementation.html#GIN-FAST-UPDATE
.. _gin_pending_list_limit: https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-GIN-PENDING-LIST-LIMIT
.. versionchanged:: 2.0
The ``fastupdate`` and ``gin_pending_list_limit`` parameters were added.