postgresql/contrib/pg_stat_statements/pg_stat_statements--1.2--1.3.sql
Andrew Dunstan 717f709532 Add stats for min, max, mean, stddev times to pg_stat_statements.
The new fields are min_time, max_time, mean_time and stddev_time.

Based on an original patch from Mitsumasa KONDO, modified by me. Reviewed by Petr Jelínek.
2015-03-27 15:43:22 -04:00

48 lines
1.4 KiB
SQL

/* contrib/pg_stat_statements/pg_stat_statements--1.2--1.3.sql */
-- complain if script is sourced in psql, rather than via ALTER EXTENSION
\echo Use "ALTER EXTENSION pg_stat_statements UPDATE TO '1.3'" to load this file. \quit
/* First we have to remove them from the extension */
ALTER EXTENSION pg_stat_statements DROP VIEW pg_stat_statements;
ALTER EXTENSION pg_stat_statements DROP FUNCTION pg_stat_statements(boolean);
/* Then we can drop them */
DROP VIEW pg_stat_statements;
DROP FUNCTION pg_stat_statements(boolean);
/* Now redefine */
CREATE FUNCTION pg_stat_statements(IN showtext boolean,
OUT userid oid,
OUT dbid oid,
OUT queryid bigint,
OUT query text,
OUT calls int8,
OUT total_time float8,
OUT min_time float8,
OUT max_time float8,
OUT mean_time float8,
OUT stddev_time float8,
OUT rows int8,
OUT shared_blks_hit int8,
OUT shared_blks_read int8,
OUT shared_blks_dirtied int8,
OUT shared_blks_written int8,
OUT local_blks_hit int8,
OUT local_blks_read int8,
OUT local_blks_dirtied int8,
OUT local_blks_written int8,
OUT temp_blks_read int8,
OUT temp_blks_written int8,
OUT blk_read_time float8,
OUT blk_write_time float8
)
RETURNS SETOF record
AS 'MODULE_PATHNAME', 'pg_stat_statements_1_3'
LANGUAGE C STRICT VOLATILE;
CREATE VIEW pg_stat_statements AS
SELECT * FROM pg_stat_statements(true);
GRANT SELECT ON pg_stat_statements TO PUBLIC;