On Mon, Oct 16, 2023 at 01:07:07PM +0300, Nazir Bilal Yavuz wrote: > Yes, that could be a better solution. Also, having more detailed stats > for shared and local buffers is helpful. I updated patches in line > with that: > > 0001: Counts extends same way as a write.
It can change existing query results on an already-released branch,
but we already count the number of blocks when doing a relation
extension, so counting the write time is something I'd rather fix in
v16. If you have any objections, let me know.
> 0002: Rename blk_{read|write}_time as shared_blk_{read|write}_time.
Note that `git diff --check` complains here.
--- a/contrib/pg_stat_statements/pg_stat_statements--1.1--1.2.sql
+++ b/contrib/pg_stat_statements/pg_stat_statements--1.1--1.2.sql
@@ -30,8 +30,8 @@ CREATE FUNCTION pg_stat_statements(IN showtext boolean,
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
+ OUT shared_blk_read_time float8,
+ OUT shared_blk_write_time float8
Doing that in an extension upgrade script is incorrect. These should
not be touched.
- Total time the statement spent reading data file blocks, in milliseconds
+ Total time the statement spent reading shared data file blocks, in
milliseconds
Or just shared blocks? That's what we use elsewhere for
pg_stat_statements. "shared data file blocks" sounds a bit confusing
for relation file blocks read/written from/to shared buffers.
> 0003: Add new local_blk_{read|write}_time variables.
DATA = pg_stat_statements--1.4.sql \
+ pg_stat_statements--1.11--1.12.sql \
pg_stat_statements--1.10--1.11.sql \
There is no need to bump again pg_stat_statements, as it has already
been bumped to 1.11 on HEAD per the recent commit 5a3423ad8ee1 from
Daniel. So the new changes can just be added to 1.11.
--
Michael
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