diff options
Diffstat (limited to 'src/backend/commands')
| -rw-r--r-- | src/backend/commands/vacuum.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c index 0f72c1c36ad..812fb4a48fe 100644 --- a/src/backend/commands/vacuum.c +++ b/src/backend/commands/vacuum.c @@ -1153,6 +1153,15 @@ vac_truncate_clog(TransactionId frozenXID, return; /* + * Advance the oldest value for commit timestamps before truncating, so + * that if a user requests a timestamp for a transaction we're truncating + * away right after this point, they get NULL instead of an ugly "file not + * found" error from slru.c. This doesn't matter for xact/multixact + * because they are not subject to arbitrary lookups from users. + */ + AdvanceOldestCommitTsXid(frozenXID); + + /* * Truncate CLOG, multixact and CommitTs to the oldest computed value. */ TruncateCLOG(frozenXID); @@ -1167,7 +1176,6 @@ vac_truncate_clog(TransactionId frozenXID, */ SetTransactionIdLimit(frozenXID, oldestxid_datoid); SetMultiXactIdLimit(minMulti, minmulti_datoid); - AdvanceOldestCommitTsXid(frozenXID); } |