83032dc42c
Add tests that verify the exact values of the idx_tup_read and idx_tup_fetch counters in pg_stat_all_indexes. There was no existing coverage of pg_stat_all_indexes, beyond some counter reset tests; idx_tup_read and idx_tup_fetch had no tests at all. This is preparation for an upcoming commit that will move index scan heap fetches behind a new slot-based table AM interface, relocating the code that maintains these counters. Author: Peter Geoghegan <pg@bowt.ie> Reviewed-by: Tomas Vondra <tomas@vondra.me> Discussion: https://postgr.es/m/CAH2-Wz%3DV0V5WGuo85D-OF%2BTM_CxU3q%3DMMkY-ebY0K8xc-9Xykw%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/.