postgresql/contrib/pg_stat_statements
Michael Paquier bb45156f34 Show names of DEALLOCATE as constants in pg_stat_statements
This commit switches query jumbling so as prepared statement names are
treated as constants in DeallocateStmt.  A boolean field is added to
DeallocateStmt to make a distinction between ALL and named prepared
statements, as "name" was used to make this difference before, NULL
meaning DEALLOCATE ALL.

Prior to this commit, DEALLOCATE was not tracked in pg_stat_statements,
for the reason that it was not possible to treat its name parameter as a
constant.  Now that query jumbling applies to all the utility nodes,
this reason does not apply anymore.

Like 638d42a3c5, this can be a huge advantage for monitoring where
prepared statement names are randomly generated, preventing bloat in
pg_stat_statements.  A couple of tests are added to track the new
behavior.

Author: Dagfinn Ilmari Mannsåker, Michael Paquier
Reviewed-by: Julien Rouhaud
Discussion: https://postgr.es/m/ZMhT9kNtJJsHw6jK@paquier.xyz
2023-08-27 17:27:44 +09:00
..
expected Show names of DEALLOCATE as constants in pg_stat_statements 2023-08-27 17:27:44 +09:00
sql Show names of DEALLOCATE as constants in pg_stat_statements 2023-08-27 17:27:44 +09:00
.gitignore
Makefile Refactor more the regression tests of pg_stat_statements 2023-03-03 08:46:11 +09:00
meson.build Refactor more the regression tests of pg_stat_statements 2023-03-03 08:46:11 +09:00
pg_stat_statements--1.0--1.1.sql
pg_stat_statements--1.1--1.2.sql
pg_stat_statements--1.2--1.3.sql
pg_stat_statements--1.3--1.4.sql
pg_stat_statements--1.4--1.5.sql
pg_stat_statements--1.4.sql
pg_stat_statements--1.5--1.6.sql
pg_stat_statements--1.6--1.7.sql Extend pg_stat_statements_reset to reset statistics specific to a 2019-01-11 08:50:09 +05:30
pg_stat_statements--1.7--1.8.sql Change the display of WAL usage statistics in Explain. 2020-05-05 08:00:53 +05:30
pg_stat_statements--1.8--1.9.sql Merge v1.10 of pg_stat_statements into v1.9 2021-04-08 15:15:17 +02:00
pg_stat_statements--1.9--1.10.sql Add JIT counters to pg_stat_statements 2022-04-08 13:52:16 +02:00
pg_stat_statements.c Show names of DEALLOCATE as constants in pg_stat_statements 2023-08-27 17:27:44 +09:00
pg_stat_statements.conf Show GIDs of two-phase commit commands as constants in pg_stat_statements 2023-08-12 10:44:15 +09:00
pg_stat_statements.control pg_stat_statements: Track I/O timing for temporary file blocks 2022-04-08 13:12:07 +09:00