| From: | Alexander Korotkov <akorotkov(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: postgres_fdw: Avoid pulling up restrict infos from subqueries |
| Date: | 2025-03-25 03:51:20 |
| Message-ID: | E1twvJv-000rV1-1n@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
postgres_fdw: Avoid pulling up restrict infos from subqueries
Semi-join joins below left/right join are deparsed as
subqueries. Thus, we can't refer to subqueries vars from upper relations.
This commit avoids pulling conditions from them.
Reported-by: Robins Tharakan <tharakan(at)gmail(dot)com>
Bug: #18852
Discussion: https://postgr.es/m/CAEP4nAzryLd3gwcUpFBAG9MWyDfMRX8ZjuyY2XXjyC_C6k%2B_Zw%40mail.gmail.com
Author: Alexander Pyhalov <a(dot)pyhalov(at)postgrespro(dot)ru>
Reviewed-by: Alexander Korotkov <aekorotkov(at)gmail(dot)com>
Backpatch-through: 17
Branch
------
REL_17_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/729fe699e61231a01d834078c0566830638440ee
Modified Files
--------------
contrib/postgres_fdw/expected/postgres_fdw.out | 38 ++++++++++++++++++++++++++
contrib/postgres_fdw/postgres_fdw.c | 32 ++++++++++++++++------
contrib/postgres_fdw/sql/postgres_fdw.sql | 17 ++++++++++++
3 files changed, 79 insertions(+), 8 deletions(-)
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