CommandId
HeapTupleHeaderGetCmax(HeapTupleHeader tup)
{
CommandId cid = HeapTupleHeaderGetRawCommandId(tup);
Assert(!(tup->t_infomask & HEAP_MOVED));
Assert(TransactionIdIsCurrentTransactionId(HeapTupleHeaderGetUpdateXid(tup)));
if (tup->t_infomask & HEAP_COMBOCID)
return GetRealCmax(cid);
else
return cid;
}
CommandId
HeapTupleHeaderGetCmax(HeapTupleHeader tup)
{
CommandId cid = HeapTupleHeaderGetRawCommandId(tup);
/* We do not store cmax when locking a tuple */
Assert(!(tup->t_infomask & (HEAP_MOVED | HEAP_IS_LOCKED)));
Assert(TransactionIdIsCurrentTransactionId(HeapTupleHeaderGetXmax(tup)));
if (tup->t_infomask & HEAP_COMBOCID)
return GetRealCmax(cid);
else
return cid;
}
CommandId
HeapTupleHeaderGetCmax(HeapTupleHeader tup)
{
CommandId cid = HeapTupleHeaderGetRawCommandId(tup);
/* We do not store cmax when locking a tuple */
Assert(!(tup->t_infomask & (HEAP_MOVED | HEAP_IS_LOCKED)));
/*
* MPP-8317: cursors can't always *tell* that this is the current transaction.
*/
Assert(QEDtxContextInfo.cursorContext || TransactionIdIsCurrentTransactionId(HeapTupleHeaderGetXmax(tup)));
if (tup->t_infomask & HEAP_COMBOCID)
return GetRealCmax(HeapTupleHeaderGetXmin(tup), cid);
else
return cid;
}
CommandId
HeapTupleHeaderGetCmax(HeapTupleHeader tup)
{
CommandId cid = HeapTupleHeaderGetRawCommandId(tup);
Assert(!(tup->t_infomask & HEAP_MOVED));
/*
* Because GetUpdateXid() performs memory allocations if xmax is a
* multixact we can't Assert() if we're inside a critical section. This
* weakens the check, but not using GetCmax() inside one would complicate
* things too much.
*/
Assert(CritSectionCount > 0 ||
TransactionIdIsCurrentTransactionId(HeapTupleHeaderGetUpdateXid(tup)));
if (tup->t_infomask & HEAP_COMBOCID)
return GetRealCmax(cid);
else
return cid;
}