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doc: Mention GIN indexes support parallel builds.

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Commit 8492feb98f added support for parallel CREATE INDEX on GIN indexes.
However, previously two places in the documentation and two in the source
code comments still stated that only B-tree and BRIN indexes support
parallel builds.

This commit updates those references to correctly include GIN indexes.

Author: Fujii Masao <masao.fujii@gmail.com>
Reviewed-by: Robert Treat <rob@xzilla.net>
Discussion: https://postgr.es/m/7d27d068-90e2-4022-9bd7-09b0fd3d4f47@oss.nttdata.com
This commit is contained in:
Fujii Masao
2025-06-19 09:12:34 +09:00
parent b57d707708
commit db0c93f172
4 changed files with 5 additions and 4 deletions
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2
src/backend/catalog/index.c
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@ -3020,7 +3020,7 @@ index_build(Relation heapRelation,
/*
* Determine worker process details for parallel CREATE INDEX. Currently,
* only btree and BRIN have support for parallel builds.
* only btree, GIN, and BRIN have support for parallel builds.
*
* Note that planner considers parallel safety for us.
*/

2
src/backend/optimizer/plan/planner.c
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@ -6879,7 +6879,7 @@ plan_cluster_use_sort(Oid tableOid, Oid indexOid)
*
* tableOid is the table on which the index is to be built. indexOid is the
* OID of an index to be created or reindexed (which must be an index with
* support for parallel builds - currently btree or BRIN).
* support for parallel builds - currently btree, GIN, or BRIN).
*
* Return value is the number of parallel worker processes to request. It
* may be unsafe to proceed if this is 0. Note that this does not include the