WAL log VM setting for empty pages in XLOG_HEAP2_PRUNE_VACUUM_SCAN As part of removing XLOG_HEAP2_VISIBLE records, phase I of VACUUM now marks empty pages all-visible and all-frozen in a XLOG_HEAP2_PRUNE_VACUUM_SCAN record.
This has no real independent benefit, but empty pages were the last user of XLOG_HEAP2_VISIBLE, so by making this change we can next remove all of the XLOG_HEAP2_VISIBLE code. Author: Melanie Plageman <[email protected]> Reviewed-by: Andres Freund <[email protected]> Reviewed-by: Chao Li <[email protected]> Reviewed-by: Kirill Reshke <[email protected]> Earlier version Reviewed-by: Robert Haas <[email protected]> Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/a759ced2f1e2f817005c1b8ee92d0626764da7d1 Modified Files -------------- src/backend/access/heap/pruneheap.c | 33 ++++++++++++++++++--------- src/backend/access/heap/vacuumlazy.c | 44 ++++++++++++++++++++++-------------- 2 files changed, 49 insertions(+), 28 deletions(-)
