5c0a20003b
This fixes an unlikely issue when fetching GROUPING SET results from their internally stored hash tables. It was possible in rare cases that the hash iterator would be set up incorrectly which could result in a crash. This was introduced in 4d143509c, so backpatch to v18. Many thanks to Yuri Zamyatin for reporting and helping to debug this issue. Bug: #19078 Reported-by: Yuri Zamyatin <yuri@yrz.am> Author: David Rowley <dgrowleyml@gmail.com> Reviewed-by: Jeff Davis <pgsql@j-davis.com> Discussion: https://postgr.es/m/19078-dfd62f840a2c0766@postgresql.org Backpatch-through: 18
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/.