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pg_stat_statements: track number of rows processed by some utility commands.

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This commit makes pg_stat_statements track the total number
of rows retrieved or affected by CREATE TABLE AS, SELECT INTO,
CREATE MATERIALIZED VIEW and FETCH commands.

Suggested-by: Pascal Legrand
Author: Fujii Masao
Reviewed-by: Asif Rehman
Discussion: https://postgr.es/m/1584293755198-0.post@n3.nabble.com
This commit is contained in:
Fujii Masao
2020-07-29 23:21:55 +09:00
parent b5310e4ff6
commit 6023b7ea71
3 changed files with 102 additions and 1 deletions
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10
contrib/pg_stat_statements/pg_stat_statements.c
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@ -1170,7 +1170,15 @@ pgss_ProcessUtility(PlannedStmt *pstmt, const char *queryString,
INSTR_TIME_SET_CURRENT(duration);
INSTR_TIME_SUBTRACT(duration, start);
rows = (qc && qc->commandTag == CMDTAG_COPY) ? qc->nprocessed : 0;
/*
* Track the total number of rows retrieved or affected by
* the utility statements of COPY, FETCH, CREATE TABLE AS,
* CREATE MATERIALIZED VIEW and SELECT INTO.
*/
rows = (qc && (qc->commandTag == CMDTAG_COPY ||
qc->commandTag == CMDTAG_FETCH ||
qc->commandTag == CMDTAG_SELECT)) ?
qc->nprocessed : 0;
/* calc differences of buffer counters. */
memset(&bufusage, 0, sizeof(BufferUsage));