diff options
Diffstat (limited to 'src/include/access/transam.h')
| -rw-r--r-- | src/include/access/transam.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/include/access/transam.h b/src/include/access/transam.h index 522c1040737..d25a2dd2073 100644 --- a/src/include/access/transam.h +++ b/src/include/access/transam.h @@ -134,6 +134,12 @@ typedef struct VariableCacheData */ TransactionId latestCompletedXid; /* newest XID that has committed or * aborted */ + + /* + * These fields are protected by CLogTruncationLock + */ + TransactionId oldestClogXid; /* oldest it's safe to look up in clog */ + } VariableCacheData; typedef VariableCacheData *VariableCache; @@ -173,6 +179,7 @@ extern TransactionId GetNewTransactionId(bool isSubXact); extern TransactionId ReadNewTransactionId(void); extern void SetTransactionIdLimit(TransactionId oldest_datfrozenxid, Oid oldest_datoid); +extern void AdvanceOldestClogXid(TransactionId oldest_datfrozenxid); extern bool ForceTransactionIdLimitUpdate(void); extern Oid GetNewObjectId(void); |