An Append node that is part of a partitionwise aggregate has no apprelids. If such a node was elided, the previous coding would attempt to call unique_nonjoin_rtekind() on a NULL pointer, which leads to an assertion failure. Insert a NULL check to prevent that. Reported-by: Alexander Lakhin <exclusion@gmail.com> Discussion: http://postgr.es/m/0afba1ce-c946-4131-972d-191d9a1c097c@gmail.com
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/.