Prevent walsummarizer from getting stuck at a timeline switch.

Reduce non-leaf keys overlap in GiST indexes produced by a sorted build

Remove redundant unlink() in KeepFileRestoredFromArchive() for non-WIN32

Silence Coverity warning about unused visibilitymap_clear() result

Turn visibilitymap_clear() Assert back into an error

Make VM clear take a RelFileLocator and not fake relcache

Test that VM clear registers VM buffers

pg_surgery: Fix infinite loop on large TID arrays

Allow IO time to be counted without a matching IO operation in pg_stat_io

Fix autovacuum's database sorting.

Use new overflow-safe integer comparison functions.

Introduce overflow-safe integer comparison functions.

Replace calls to pg_qsort() with the qsort() macro.