diff options
Diffstat (limited to 'src/include/access/multixact.h')
| -rw-r--r-- | src/include/access/multixact.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/src/include/access/multixact.h b/src/include/access/multixact.h index f1448fe0635..9f9df9cda04 100644 --- a/src/include/access/multixact.h +++ b/src/include/access/multixact.h @@ -71,6 +71,7 @@ typedef struct MultiXactMember #define XLOG_MULTIXACT_ZERO_OFF_PAGE 0x00 #define XLOG_MULTIXACT_ZERO_MEM_PAGE 0x10 #define XLOG_MULTIXACT_CREATE_ID 0x20 +#define XLOG_MULTIXACT_TRUNCATE_ID 0x30 typedef struct xl_multixact_create { @@ -82,6 +83,21 @@ typedef struct xl_multixact_create #define SizeOfMultiXactCreate (offsetof(xl_multixact_create, members)) +typedef struct xl_multixact_truncate +{ + Oid oldestMultiDB; + + /* to-be-truncated range of multixact offsets */ + MultiXactId startTruncOff; /* just for completeness' sake */ + MultiXactId endTruncOff; + + /* to-be-truncated range of multixact members */ + MultiXactOffset startTruncMemb; + MultiXactOffset endTruncMemb; +} xl_multixact_truncate; + +#define SizeOfMultiXactTruncate (sizeof(xl_multixact_truncate)) + extern MultiXactId MultiXactIdCreate(TransactionId xid1, MultiXactStatus status1, TransactionId xid2, @@ -119,13 +135,12 @@ extern void MultiXactGetCheckptMulti(bool is_shutdown, Oid *oldestMultiDB); extern void CheckPointMultiXact(void); extern MultiXactId GetOldestMultiXactId(void); -extern void TruncateMultiXact(void); +extern void TruncateMultiXact(MultiXactId oldestMulti, Oid oldestMultiDB, bool in_recovery); extern void MultiXactSetNextMXact(MultiXactId nextMulti, MultiXactOffset nextMultiOffset); extern void MultiXactAdvanceNextMXact(MultiXactId minMulti, MultiXactOffset minMultiOffset); extern void MultiXactAdvanceOldest(MultiXactId oldestMulti, Oid oldestMultiDB); -extern void MultiXactSetSafeTruncate(MultiXactId safeTruncateMulti); extern int MultiXactMemberFreezeThreshold(void); extern void multixact_twophase_recover(TransactionId xid, uint16 info, |