Count SP-GiST index scans in pg_stat statistics.
Somehow, spgist overlooked the need to call pgstat_count_index_scan().
Hence, pg_stat_all_indexes.idx_scan and equivalent columns never
became nonzero for an SP-GiST index, although the related per-tuple
counters worked fine.
This fix works a bit differently from other index AMs, in that the
counter increment occurs in spgrescan not spggettuple/spggetbitmap.
It looks like this won't make the user-visible semantics noticeably
different, so I won't go to the trouble of introducing an is-this-
the-first-call flag just to make the counter bumps happen in the
same places.
Per bug #17163 from Christian Quest. Back-patch to all supported
versions.
Discussion: https://postgr.es/m/17163-b8c5cc88322a5e92@postgresql.org
Branch
------
REL_14_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/e84d4810cd47d83a6a864fa33db74bcc5570dd76
Modified Files
--------------
src/backend/access/spgist/spgscan.c | 4 ++++
1 file changed, 4 insertions(+)