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| author | Bruce Momjian <bruce@momjian.us> | 2021-04-07 13:06:47 -0400 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2021-04-07 13:06:56 -0400 |
| commit | 5fd9dfa5f50e4906c35133a414ebec5b6d518493 (patch) | |
| tree | 4bf0c6c9088eb8b053b029b9be787939d48d2e3b /src/backend/tcop/postgres.c | |
| parent | a282ee68a070a8adc6e6d45e8e643769c587ecc3 (diff) | |
| download | postgresql-5fd9dfa5f50e4906c35133a414ebec5b6d518493.tar.gz postgresql-5fd9dfa5f50e4906c35133a414ebec5b6d518493.zip | |
Move pg_stat_statements query jumbling to core.
Add compute_query_id GUC to control whether a query identifier should be
computed by the core (off by default). It's thefore now possible to
disable core queryid computation and use pg_stat_statements with a
different algorithm to compute the query identifier by using a
third-party module.
To ensure that a single source of query identifier can be used and is
well defined, modules that calculate a query identifier should throw an
error if compute_query_id specified to compute a query id and if a query
idenfitier was already calculated.
Discussion: https://postgr.es/m/20210407125726.tkvjdbw76hxnpwfi@nol
Author: Julien Rouhaud
Reviewed-by: Alvaro Herrera, Nitin Jadhav, Zhihong Yu
Diffstat (limited to 'src/backend/tcop/postgres.c')
| -rw-r--r-- | src/backend/tcop/postgres.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c index 330ec5b0288..50f2f7f2465 100644 --- a/src/backend/tcop/postgres.c +++ b/src/backend/tcop/postgres.c @@ -668,6 +668,7 @@ pg_analyze_and_rewrite_params(RawStmt *parsetree, ParseState *pstate; Query *query; List *querytree_list; + JumbleState *jstate = NULL; Assert(query_string != NULL); /* required as of 8.4 */ @@ -686,8 +687,11 @@ pg_analyze_and_rewrite_params(RawStmt *parsetree, query = transformTopLevelStmt(pstate, parsetree); + if (compute_query_id) + jstate = JumbleQuery(query, query_string); + if (post_parse_analyze_hook) - (*post_parse_analyze_hook) (pstate, query); + (*post_parse_analyze_hook) (pstate, query, jstate); free_parsestate(pstate); |