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Tom Lane 149e00192f pg_stat_statements: fetch stmt location/length before it disappears. ... When executing a utility statement, we must fetch everything we need out of the PlannedStmt data structure before calling standard_ProcessUtility. In certain cases (possibly only ROLLBACK in extended query protocol), that data structure will get freed during command execution. The situation is probably often harmless in production builds, but in debug builds we intentionally overwrite the freed memory with garbage, leading to picking up garbage values of statement location and length, typically causing an assertion failure later in pg_stat_statements. In non-debug builds, if something did go wrong it would likely lead to storing garbage for the query string. Report and fix by zhaoqigui (with cosmetic adjustments by me). It's an old problem, so back-patch to all supported versions. Discussion: https://postgr.es/m/17663-a344fd0675f92128@postgresql.org Discussion: https://postgr.es/m/1667307420050.56657@hundsun.com		3 years ago
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expected	Show ignored constants as "$N" rather than "?" in pg_stat_statements.	8 years ago
sql	Show ignored constants as "$N" rather than "?" in pg_stat_statements.	8 years ago
.gitignore	pg_stat_statements: Add .gitignore file for tests	9 years ago
Makefile	Revoke pg_stat_statements_reset() permissions	7 years ago
pg_stat_statements--1.0--1.1.sql	Fix typo in update scripts for some contrib modules.	12 years ago
pg_stat_statements--1.1--1.2.sql	Keep pg_stat_statements' query texts in a file, not in shared memory.	12 years ago
pg_stat_statements--1.2--1.3.sql	Add stats for min, max, mean, stddev times to pg_stat_statements.	10 years ago
pg_stat_statements--1.3--1.4.sql	Update pg_stat_statements extension for parallel query.	9 years ago
pg_stat_statements--1.4--1.5.sql	Default monitoring roles	8 years ago
pg_stat_statements--1.4.sql	Update pg_stat_statements extension for parallel query.	9 years ago
pg_stat_statements--1.5--1.6.sql	Revoke pg_stat_statements_reset() permissions	7 years ago
pg_stat_statements--unpackaged--1.0.sql	Fix typos in some error messages thrown by extension scripts when fed to psql.	11 years ago
pg_stat_statements.c	pg_stat_statements: fetch stmt location/length before it disappears.	3 years ago
pg_stat_statements.conf	Add minimal set of regression tests for pg_stat_statements.	9 years ago
pg_stat_statements.control	Revoke pg_stat_statements_reset() permissions	7 years ago