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Serialized mode works!

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This commit is contained in:
Vadim B. Mikheev
1998-12-16 11:53:55 +00:00
parent 54c3e65242
commit c13a64d7fb
9 changed files with 209 additions and 47 deletions
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19
src/include/utils/tqual.h
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@@ -7,7 +7,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: tqual.h,v 1.16 1998/12/15 12:47:01 vadim Exp $
* $Id: tqual.h,v 1.17 1998/12/16 11:52:11 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -19,7 +19,8 @@
typedef struct SnapshotData
{
TransactionId xmin; /* XID < xmin are visible to me */
TransactionId xmax; /* XID > xmax are invisible to me */
TransactionId xmax; /* XID >= xmax are invisible to me */
uint32 xcnt; /* # of xact below */
TransactionId *xip; /* array of xacts in progress */
} SnapshotData;
@@ -27,7 +28,9 @@ typedef SnapshotData *Snapshot;
#define SnapshotNow ((Snapshot) 0x0)
#define SnapshotSelf ((Snapshot) 0x1)
extern Snapshot SnapshotDirty;
extern Snapshot QuerySnapshot;
#define IsSnapshotNow(snapshot) ((Snapshot) snapshot == SnapshotNow)
#define IsSnapshotSelf(snapshot) ((Snapshot) snapshot == SnapshotSelf)
@@ -55,7 +58,11 @@ extern CommandId HeapSpecialCommandId;
((IsSnapshotDirty(snapshot)) ? \
HeapTupleSatisfiesDirty((tuple)->t_data) \
: \
HeapTupleSatisfiesNow((tuple)->t_data) \
((IsSnapshotNow(snapshot)) ? \
HeapTupleSatisfiesNow((tuple)->t_data) \
: \
HeapTupleSatisfiesSnapshot((tuple)->t_data, snapshot) \
) \
) \
) \
)
@@ -87,9 +94,13 @@ extern CommandId HeapSpecialCommandId;
extern bool HeapTupleSatisfiesItself(HeapTupleHeader tuple);
extern bool HeapTupleSatisfiesNow(HeapTupleHeader tuple);
extern bool HeapTupleSatisfiesDirty(HeapTupleHeader tuple);
extern bool HeapTupleSatisfiesSnapshot(HeapTupleHeader tuple, Snapshot snapshot);
extern int HeapTupleSatisfiesUpdate(HeapTuple tuple);
extern void setheapoverride(bool on);
extern Snapshot GetSnapshotData(bool serialized);
extern Snapshot GetSnapshotData(void);
extern void SetQuerySnapshot(void);
extern void FreeXactSnapshot(void);
#endif /* TQUAL_H */