Lock table in DROP STATISTICS
The DROP STATISTICS code failed to properly lock the table, leading to
ERROR: tuple concurrently deleted
when executed concurrently with ANALYZE.
Fixed by modifying RemoveStatisticsById() to acquire the same lock as
ANALYZE. This function is called only by DROP STATISTICS, as ANALYZE
calls RemoveStatisticsDataById() directly.
Reported by Justin Pryzby, fix by me. Backpatch through 12. The code was
like this since it was introduced in 10, but older releases are EOL.
Reported-by: Justin Pryzby
Reviewed-by: Tom Lane
Backpatch-through: 12
Discussion: https://postgr.es/m/ZUuk-8CfbYeq6g_u@pryzbyj2023
Branch
------
REL_15_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/0177fc773e3c6cfafbcfc8e447c013bd2dfe3672
Modified Files
--------------
src/backend/commands/statscmds.c | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)