postgres

Commit Graph

Author	SHA1	Message	Date
Michael Paquier	cf54a2c002	pg_stat_statements: Add columns to track parallel worker activity The view pg_stat_statements gains two columns: - parallel_workers_to_launch, the number of parallel workers planned to be launched. - parallel_workers_launched, the number of parallel workers actually launched. The ratio of both columns offers hints that parallel workers are lacking on a per-statement basis, requiring some tuning, in coordination with "calls", the number of times a query is executed. As of now, these numbers are tracked within Gather and GatherMerge nodes. They could be extended to utilities that make use of parallel workers (parallel btree and brin, VACUUM). The module is bumped to 1.12. Author: Guillaume Lelarge Discussion: https://postgr.es/m/CAECtzeWtTGOK0UgKXdDGpfTVSa5bd_VbUt6K6xn8P7X+_dZqKw@mail.gmail.com	11 months ago
Peter Eisentraut	3e527aeeed	pg_stat_statements: Add test coverage for pg_stat_statements_reset_1_7 Run pg_stat_statements_reset() once while the appropriate extension version is installed. Reviewed-by: Michael Paquier <michael@paquier.xyz> Discussion: https://www.postgresql.org/message-id/flat/40d1e4f2-835f-448f-a541-8ff5db75bf3d@eisentraut.org	2 years ago
Peter Eisentraut	3727b8d0e3	pg_stat_statements: Add test coverage for pg_stat_statements_1_8() This requires reading pg_stat_statements at least once while the 1.8 version of the extension is installed. Reviewed-by: Michael Paquier <michael@paquier.xyz> Discussion: https://www.postgresql.org/message-id/flat/40d1e4f2-835f-448f-a541-8ff5db75bf3d@eisentraut.org	2 years ago
Alexander Korotkov	dc9f8a7983	Track statement entry timestamp in contrib/pg_stat_statements This patch adds 'stats_since' and 'minmax_stats_since' columns to the pg_stat_statements view and pg_stat_statements() function. The new min/max reset mode for the pg_stat_stetments_reset() function is controlled by the parameter minmax_only. 'stat_since' column is populated with the current timestamp when a new statement is added to the pg_stat_statements hashtable. It provides clean information about statistics collection time intervals for each statement. Besides it can be used by sampling solutions to detect situations when a statement was evicted and stored again between samples. Such a sampling solution could derive any pg_stat_statements statistic values for an interval between two samples with the exception of all min/max statistics. To address this issue this patch adds the ability to reset min/max statistics independently of the statement reset using the new minmax_only parameter of the pg_stat_statements_reset(userid oid, dbid oid, queryid bigint, minmax_only boolean) function. The timestamp of such reset is stored in the minmax_stats_since field for each statement. pg_stat_statements_reset() function now returns the timestamp of a reset as the result. Discussion: https://postgr.es/m/flat/72e80e7b160a6eb189df9ef6f068cce3765d37f8.camel%40moonset.ru Author: Andrei Zubkov Reviewed-by: Julien Rouhaud, Hayato Kuroda, Yuki Seino, Chengxi Sun Reviewed-by: Anton Melnikov, Darren Rush, Michael Paquier, Sergei Kornilov Reviewed-by: Alena Rybakina, Andrei Lepikhov	2 years ago
Daniel Gustafsson	c5a032e518	Update oldextversions test for pg_stat_statements 1.11 Commit `5a3423ad8e` updated pg_stat_statements to 1.11 due to added columns in the view for jit deform counters. Fixing oldextversion was however missed in that commit. This adds a test for the 1.11 version view definition. Author: Nazir Bilal Yavuz <byavuz81@gmail.com> Discussion: https://postgr.es/m/CAN55FZ2Y7c2VEg4S1KDXFcaHjyF8=KZa_rMV6WOe+KwE-KE97g@mail.gmail.com	2 years ago
Michael Paquier	76cbf7edb6	pg_stat_statements: Track I/O timing for temporary file blocks This commit adds two new columns to pg_stat_statements, called temp_blk_read_time and temp_blk_write_time. Those columns respectively show the time spent to read and write temporary file blocks on disk, whose tracking has been added in `efb0ef9`. This information is available when track_io_timing is enabled, like blk_read_time and blk_write_time. pg_stat_statements is updated to version to 1.10 as an effect of the newly-added columns. Tests for the upgrade path 1.9->1.10 are added. PGSS_FILE_HEADER is bumped for the new stats file format. Author: Masahiko Sawada Reviewed-by: Georgios Kokolatos, Melanie Plageman, Julien Rouhaud, Ranier Vilela Discussion: https://postgr.es/m/CAD21AoAJgotTeP83p6HiAGDhs_9Fw9pZ2J=_tYTsiO5Ob-V5GQ@mail.gmail.com	3 years ago
Michael Paquier	2b0da0365b	pg_stat_statements: Add some tests for older versions still usable When the newest version is loaded, the backend would load objects from the oldest complete SQL file (here 1.4) and then update to the latest version with transition scripts (up to 1.9 currently). This provides some coverage for upgrades of pg_stat_statements, but there is no test to show how things have changed across each version. This adds a couple of tests for the upgrade paths using objects from each version supported, stressing the objects whose behaviors have changed across each version supported. Author: Erica Zhang Reviewed-by: Julien Rouhaud, Michael Paquier Discussion: https://postgr.es/m/tencent_BBA974AFF61379F2345E782FD6C55891950A@qq.com	4 years ago

7 Commits (baf45ba0533f872acec16ece7f45f4db13fcbd3f)