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postgresql/src/backend/access
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John Naylor 8a1b31e6e5 Use bump context for TID bitmaps stored by vacuum 
Vacuum does not pfree individual entries, and only frees the entire
storage space when finished with it. This allows using a bump context,
eliminating the chunk header in each leaf allocation. Most leaf
allocations will be 16 to 32 bytes, so that's a significant savings.
TidStoreCreateLocal gets a boolean parameter to indicate that the
created store is insert-only.

This requires a separate tree context for iteration, since we free
the iteration state after iteration completes.

Discussion: https://postgr.es/m/CANWCAZac%3DpBePg3rhX8nXkUuaLoiAJJLtmnCfZsPEAS4EtJ%3Dkg%40mail.gmail.com
Discussion: https://postgr.es/m/CANWCAZZQFfxvzO8yZHFWtQV+Z2gAMv1ku16Vu7KWmb5kZQyd1w@mail.gmail.com
 		2024-04-08 14:39:49 +07:00
..
brin Make the order of the header file includes consistent 2024-03-13 15:07:00 +01:00
common Use bump context for TID bitmaps stored by vacuum 2024-04-08 14:39:49 +07:00
gin Remove unused #include's from backend .c files 2024-03-04 12:02:20 +01:00
gist Merge prune, freeze and vacuum WAL record formats 2024-03-25 14:59:58 +02:00
hash Merge prune, freeze and vacuum WAL record formats 2024-03-25 14:59:58 +02:00
heap Use bump context for TID bitmaps stored by vacuum 2024-04-08 14:39:49 +07:00
index Enhance nbtree ScalarArrayOp execution. 2024-04-06 11:47:10 -04:00
nbtree Remove redundant nbtree preprocessing assertions. 2024-04-07 22:13:28 -04:00
rmgrdesc Merge prune, freeze and vacuum WAL record formats 2024-03-25 14:59:58 +02:00
sequence Fix comment thinko in sequence.c 2024-02-27 08:19:39 +09:00
spgist Make the order of the header file includes consistent 2024-03-13 15:07:00 +01:00
table Revert "Custom reloptions for table AM" 2024-04-02 11:29:00 +03:00
tablesample Remove unused #include's from backend .c files 2024-03-04 12:02:20 +01:00
transam Use conditional variable to wait for next MultiXact offset 2024-04-07 20:33:45 +02:00
Makefile Introduce sequence_*() access functions 2024-02-26 16:04:59 +09:00
meson.build Introduce sequence_*() access functions 2024-02-26 16:04:59 +09:00