diff options
| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2024-03-25 14:59:58 +0200 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2024-03-25 14:59:58 +0200 |
| commit | f83d709760d84253b539ee454ce9ce1ceb9ad9ac (patch) | |
| tree | faab56d6b5fc4c320ff10838238cbb2a14588409 /src/backend/replication/logical | |
| parent | d44032d0146306971cd5ccf232fe37269717d6f2 (diff) | |
| download | postgresql-f83d709760d84253b539ee454ce9ce1ceb9ad9ac.tar.gz postgresql-f83d709760d84253b539ee454ce9ce1ceb9ad9ac.zip | |
Merge prune, freeze and vacuum WAL record formats
The new combined WAL record is now used for pruning, freezing and 2nd
pass of vacuum. This is in preparation for changing VACUUM to write a
combined prune+freeze record per page, instead of separate two
records. The new WAL record format now supports that, but the code
still always writes separate records for pruning and freezing.
This reserves separate XLOG_HEAP2_* info codes for when the pruning
record is emitted for on-access pruning or VACUUM, per Peter
Geoghegan's suggestion. The record format is identical, but having
separate info codes makes it easier analyze pruning and vacuuming with
pg_waldump.
The function to emit the new WAL record, log_heap_prune_and_freeze(),
is in pruneheap.c. The existing heap_log_freeze_plan() and its
subroutines are moved to pruneheap.c without changes, to keep them
together with log_heap_prune_and_freeze().
Author: Melanie Plageman <melanieplageman@gmail.com>
Discussion: https://www.postgresql.org/message-id/CAAKRu_azf-zH%3DDgVbquZ3tFWjMY1w5pO8m-TXJaMdri8z3933g@mail.gmail.com
Discussion: https://www.postgresql.org/message-id/CAAKRu_b2oE4GL%3Dq4g9mcByS9yT7wTQvEH9OLpabj28e%2BWKFi2A@mail.gmail.com
Diffstat (limited to 'src/backend/replication/logical')
| -rw-r--r-- | src/backend/replication/logical/decode.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/backend/replication/logical/decode.c b/src/backend/replication/logical/decode.c index e5ab7b78b78..7a86f8481db 100644 --- a/src/backend/replication/logical/decode.c +++ b/src/backend/replication/logical/decode.c @@ -445,9 +445,9 @@ heap2_decode(LogicalDecodingContext *ctx, XLogRecordBuffer *buf) * Everything else here is just low level physical stuff we're not * interested in. */ - case XLOG_HEAP2_FREEZE_PAGE: - case XLOG_HEAP2_PRUNE: - case XLOG_HEAP2_VACUUM: + case XLOG_HEAP2_PRUNE_ON_ACCESS: + case XLOG_HEAP2_PRUNE_VACUUM_SCAN: + case XLOG_HEAP2_PRUNE_VACUUM_CLEANUP: case XLOG_HEAP2_VISIBLE: case XLOG_HEAP2_LOCK_UPDATED: break; |