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| author | David Rowley <drowley@postgresql.org> | 2024-09-12 16:02:01 +1200 |
|---|---|---|
| committer | David Rowley <drowley@postgresql.org> | 2024-09-12 16:02:01 +1200 |
| commit | 9fba1ed2947382af213dfbfabfcd8898c89bf4ca (patch) | |
| tree | 48636fbcd68879eb38b5e330e715e820c4936d7e /src/backend/access/gist/gistutil.c | |
| parent | e6c45d85dc168fb05b5ee5596a4de5167c9fe01f (diff) | |
| download | postgresql-9fba1ed2947382af213dfbfabfcd8898c89bf4ca.tar.gz postgresql-9fba1ed2947382af213dfbfabfcd8898c89bf4ca.zip | |
Adjust tuplestore stats API
1eff8279d added an API to tuplestore.c to allow callers to obtain
storage telemetry data. That API wasn't quite good enough for callers
that perform tuplestore_clear() as the telemetry functions only
accounted for the current state of the tuplestore, not the maximums
before tuplestore_clear() was called.
There's a pending patch that would like to add tuplestore telemetry
output to EXPLAIN ANALYZE for WindowAgg. That node type uses
tuplestore_clear() before moving to the next window partition and we
want to show the maximum space used, not the space used for the final
partition.
Reviewed-by: Tatsuo Ishii, Ashutosh Bapat
Discussion: https://postgres/m/CAApHDvoY8cibGcicLV0fNh=9JVx9PANcWvhkdjBnDCc9Quqytg@mail.gmail.com
Diffstat (limited to 'src/backend/access/gist/gistutil.c')
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