70b9adb98e
I assumed that all index_drop() callers set an active snapshot beforehand, but that is evidently not true. One counterexample is autovacuum, which doesn't set an active snapshot when cleaning up orphan temp indexes. To fix, unconditionally push an active snapshot before updating pg_index in index_drop(). Oversight in commit b52adbad46. Reported-by: Masahiko Sawada Reviewed-by: Stepan Neretin, Masahiko Sawada Discussion: https://postgr.es/m/CAD21AoBgF9etQrXbN9or_YHsmBRJHHNUEkhHp9rGK9CyQv5aTQ%40mail.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/.