If an INSERT has an ON CONFLICT DO UPDATE clause, the executor must check that the target relation supports UPDATE as well as INSERT. In particular, it must check that the target relation has a REPLICA IDENTITY if it publishes updates. Formerly, it was not doing this check, which could lead to silently breaking replication. Fix by adding such a check to CheckValidResultRel(), which requires adding a new onConflictAction argument. In back-branches, preserve ABI compatibility by introducing a wrapper function with the original signature. Author: Zhijie Hou <houzj.fnst@fujitsu.com> Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com> Reviewed-by: Dean Rasheed <dean.a.rasheed@gmail.com> Tested-by: Chao Li <li.evan.chao@gmail.com> Discussion: https://postgr.es/m/OS3PR01MB57180C87E43A679A730482DF94B62@OS3PR01MB5718.jpnprd01.prod.outlook.com Backpatch-through: 13
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/18/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/18/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/.