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When dealing with ResultRelInfos for partitions, there are cases where there are mixed requirements for the ri_RootResultRelInfo. There are cases when the partition itself requires a NULL ri_RootResultRelInfo and in the same query, the same partition may require a ResultRelInfo with its parent set in ri_RootResultRelInfo. This could cause the column mapping between the partitioned table and the partition not to be done which could result in crashes if the column attnums didn't match exactly. The fix is simple. We now check that the ri_RootResultRelInfo matches what the caller passed to ExecGetTriggerResultRel() and only return a cached ResultRelInfo when the ri_RootResultRelInfo matches what the caller wants, otherwise we'll make a new one. Author: David Rowley <dgrowleyml@gmail.com> Author: Amit Langote <amitlangote09@gmail.com> Reported-by: Dmitry Fomin <fomin.list@gmail.com> Discussion: https://postgr.es/m/7DCE78D7-0520-4207-822B-92F60AEA14B4@gmail.com Backpatch-through: 15
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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.