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Set last written lsn for created relation (#2398)

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* Set last written lsn for created relation

* use current LSN for updating last written LSN of relation metadata

* Update LSN for the extended blocks even for pges without LSN (zeroed)

* Update pgxn/neon/pagestore_smgr.c

Co-authored-by: Heikki Linnakangas <heikki@neon.tech>

Co-authored-by: Heikki Linnakangas <heikki@neon.tech>
This commit is contained in:
Konstantin Knizhnik
2022-09-19 12:56:08 +03:00
committed by GitHub
parent c9c3c77c31
commit 846d126579
3 changed files with 13 additions and 3 deletions
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12
pgxn/neon/pagestore_smgr.c
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@@ -959,7 +959,17 @@ neon_extend(SMgrRelation reln, ForkNumber forkNum, BlockNumber blkno,
if (IS_LOCAL_REL(reln))
mdextend(reln, forkNum, blkno, buffer, skipFsync);
#endif
/*
* smgr_extend is often called with an all-zeroes page, so lsn==InvalidXLogRecPtr.
* An smgr_write() call will come for the buffer later, after it has been initialized
* with the real page contents, and it is eventually evicted from the buffer cache.
* But we need a valid LSN to the relation metadata update now.
*/
if (lsn == InvalidXLogRecPtr)
{
lsn = GetXLogInsertRecPtr();
SetLastWrittenLSNForBlock(lsn, reln->smgr_rnode.node, forkNum, blkno);
}
SetLastWrittenLSNForRelation(lsn, reln->smgr_rnode.node, forkNum);
}

2
vendor/postgres-v14 vendored

Submodule vendor/postgres-v14 updated: ce723ee499...796770565f

2
vendor/postgres-v15 vendored

Submodule vendor/postgres-v15 updated: 0858387047...7d144ae2f3