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Look at the database last written LSN in neon_exits

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This commit is contained in:
Konstantin Knizhnik
2023-09-16 21:40:55 +03:00
parent e62ab176b8
commit 70c741fc13
1 changed files with 6 additions and 1 deletions
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7
pgxn/neon/pagestore_smgr.c
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@@ -1450,6 +1450,9 @@ neon_exists(SMgrRelation reln, ForkNumber forkNum)
BlockNumber n_blocks;
bool latest;
XLogRecPtr request_lsn;
XLogRecPtr rel_lsn;
XLogRecPtr db_lsn;
static const NRelFileInfo dummyNode = {0};
switch (reln->smgr_relpersistence)
{
@@ -1504,7 +1507,9 @@ neon_exists(SMgrRelation reln, ForkNumber forkNum)
return false;
}
request_lsn = neon_get_request_lsn(&latest, InfoFromSMgrRel(reln), forkNum, REL_METADATA_PSEUDO_BLOCKNO);
rel_lsn = neon_get_request_lsn(&latest, InfoFromSMgrRel(reln), forkNum, REL_METADATA_PSEUDO_BLOCKNO);
db_lsn = neon_get_request_lsn(&latest, dummyNode, MAIN_FORKNUM, 0);
request_lsn = Max(rel_lsn, db_lsn);
{
NeonExistsRequest request = {
.req.tag = T_NeonExistsRequest,