67490b55f3
The documentation previously said that pg_get_sequence_data() returns a row of NULL values if the sequence does not exist or if the current user lacks privileges on it. This was incomplete and could be misleading. A nonexistent relation name is rejected during regclass input conversion, while the function returns NULLs for a nonexistent relation OID and several other cases. This commit clarifies that the function returns NULLs when the specified relation OID does not exist, the relation is not a sequence, the current user lacks SELECT privilege on the sequence, the sequence belongs to another session's temporary schema, or it is an unlogged sequence on a standby server. Author: Amit Kapila <amit.kapila16@gmail.com> Reviewed-by: Fujii Masao <masao.fujii@gmail.com> Discussion: https://postgr.es/m/CAA4eK1JOo0aJRhFHNWpj3hMwaTtNOopY34f1Lh_QD=z=+DrzWQ@mail.gmail.com Backpatch-through: 19
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/19/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/19/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/.