pgsql-server/src backend/access/nbtree/Makefil ...

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl(at)postgresql(dot)org 03/02/20 19:06:22

Modified files:
src/backend/access/nbtree: Makefile README nbtinsert.c nbtpage.c
nbtree.c nbtsearch.c nbtsort.c
src/backend/access/transam: rmgr.c xlog.c
src/include/access: nbtree.h xlog.h
src/include/catalog: catversion.h
Added files:
src/backend/access/nbtree: nbtxlog.c

Log message:
Make btree index structure adjustments and WAL logging changes needed to
support btree compaction, as per proposal of a few days ago. btree index
pages no longer store parent links, instead they have a level indicator
(counting up from zero for leaf pages). The FixBTree recovery logic is
removed, and replaced by code that detects missing parent-level insertions
during WAL replay. Also, generate appropriate WAL entries when updating
btree metapage and when building a btree index from scratch. I believe
btree indexes are now completely WAL-legal for the first time.
initdb forced due to index and WAL changes.