Alexander Korotkov 30b4955a46 Fix misuse of RelOptInfo.unique_for_rels cache by SJE
When SJE uses RelOptInfo.unique_for_rels cache, it passes filtered quals to
innerrel_is_unique_ext().  That might lead to an invalid match to cache entries
made by previous non self-join checking calls.  Add UniqueRelInfo.self_join
flag to prevent such cases.  Also, fix that SJE should require a strict match
of outerrelids to make sure UniqueRelInfo.extra_clauses are valid.

Reported-by: Alexander Lakhin
Discussion: https://postgr.es/m/4788f781-31bd-9796-d7d6-588a751c8787%40gmail.com
2024-01-09 00:09:06 +02:00
2024-01-03 20:49:05 -05:00
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2024-01-03 20:49:05 -05:00
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PostgreSQL Database Management System
=====================================

This directory contains the source code distribution of the PostgreSQL
database management system.

PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.  This distribution also contains C language bindings.

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In particular, information about building PostgreSQL from the source
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Mirror of the official PostgreSQL GIT repository. Note that this is just a *mirror* - we don't work with pull requests on github. To contribute, please see https://wiki.postgresql.org/wiki/Submitting_a_Patch
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