| From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Add log_statement_sample_rate parameter |
| Date: | 2018-11-29 21:43:22 |
| Message-ID: | E1gSU5i-0006Zf-Gl@gemulon.postgresql.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-committers |
Add log_statement_sample_rate parameter
This allows to set a lower log_min_duration_statement value without
incurring excessive log traffic (which reduces performance). This can
be useful to analyze workloads with lots of short queries.
Author: Adrien Nayrat
Reviewed-by: David Rowley, Vik Fearing
Discussion: https://postgr.es/m/c30ee535-ee1e-db9f-fa97-146b9f62caed@anayrat.info
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/88bdbd3f746049834ae3cc972e6e650586ec3c9d
Modified Files
--------------
doc/src/sgml/config.sgml | 30 ++++++++++++++++++++++-----
src/backend/tcop/postgres.c | 16 ++++++++++++--
src/backend/utils/misc/guc.c | 15 +++++++++++++-
src/backend/utils/misc/postgresql.conf.sample | 13 +++++++-----
src/include/utils/guc.h | 1 +
5 files changed, 62 insertions(+), 13 deletions(-)
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2018-11-29 23:28:30 | pgsql: Document handling of invalid/ambiguous timestamp input near DST |
| Previous Message | Tom Lane | 2018-11-29 20:54:00 | pgsql: Ensure static libraries have correct mod time even if ranlib mes |