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Remove some more "snapshot too old" vestiges.

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Commit f691f5b8 removed the logic, but left behind some now-useless
Snapshot arguments to various AM-internal functions, and missed a couple
of comments.

Reported-by: Peter Geoghegan <pg@bowt.ie>
Discussion: https://postgr.es/m/CAH2-Wznj9qSNXZ1P1uWTUD_FeaTezbUazb416EPwi4Qr_jR_6A%40mail.gmail.com
This commit is contained in:
Thomas Munro
2023-09-08 17:12:12 +12:00
parent e722846daf
commit 9f0602539d
16 changed files with 56 additions and 85 deletions
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4
src/backend/access/heap/vacuumlazy.c
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@ -2865,10 +2865,6 @@ lazy_cleanup_one_index(Relation indrel, IndexBulkDeleteResult *istat,
* in effect in any case. lazy_scan_prune makes the optimistic assumption
* that any LP_DEAD items it encounters will always be LP_UNUSED by the time
* we're called.
*
* Also don't attempt it if we are doing early pruning/vacuuming, because a
* scan which cannot find a truncated heap page cannot determine that the
* snapshot is too old to read that page.
*/
static bool
should_attempt_truncation(LVRelState *vacrel)