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.
Branch
------
master
Details
-------
http://git.postgresql.org/pg/commitdiff/717f709532642f5f7756785c9be17b7ffcec8ae8
Modified Files
--------------
contrib/pg_stat_statements/Makefile | 5 +-
.../pg_stat_statements--1.2--1.3.sql | 47 +++++++++++
.../pg_stat_statements/pg_stat_statements--1.2.sql | 44 ----------
.../pg_stat_statements/pg_stat_statements--1.3.sql | 48 +++++++++++
contrib/pg_stat_statements/pg_stat_statements.c | 87 +++++++++++++++++++-
.../pg_stat_statements/pg_stat_statements.control | 2 +-
doc/src/sgml/pgstatstatements.sgml | 28 +++++++
7 files changed, 212 insertions(+), 49 deletions(-)