C++ (Cpp) ginHeapTupleFastInsert示例

示例#1

文件： gininsert.c 项目： gregs1104/sepgsql

Datum
gininsert(PG_FUNCTION_ARGS)
{
	Relation	index = (Relation) PG_GETARG_POINTER(0);
	Datum	   *values = (Datum *) PG_GETARG_POINTER(1);
	bool	   *isnull = (bool *) PG_GETARG_POINTER(2);
	ItemPointer ht_ctid = (ItemPointer) PG_GETARG_POINTER(3);

#ifdef NOT_USED
	Relation	heapRel = (Relation) PG_GETARG_POINTER(4);
	IndexUniqueCheck checkUnique = (IndexUniqueCheck) PG_GETARG_INT32(5);
#endif
	GinState	ginstate;
	MemoryContext oldCtx;
	MemoryContext insertCtx;
	int			i;

	insertCtx = AllocSetContextCreate(CurrentMemoryContext,
									  "Gin insert temporary context",
									  ALLOCSET_DEFAULT_MINSIZE,
									  ALLOCSET_DEFAULT_INITSIZE,
									  ALLOCSET_DEFAULT_MAXSIZE);

	oldCtx = MemoryContextSwitchTo(insertCtx);

	initGinState(&ginstate, index);

	if (GinGetUseFastUpdate(index))
	{
		GinTupleCollector collector;

		memset(&collector, 0, sizeof(GinTupleCollector));

		for (i = 0; i < ginstate.origTupdesc->natts; i++)
			ginHeapTupleFastCollect(&ginstate, &collector,
									(OffsetNumber) (i + 1),
									values[i], isnull[i],
									ht_ctid);

		ginHeapTupleFastInsert(&ginstate, &collector);
	}
	else
	{
		for (i = 0; i < ginstate.origTupdesc->natts; i++)
			ginHeapTupleInsert(&ginstate, (OffsetNumber) (i + 1),
							   values[i], isnull[i],
							   ht_ctid);
	}

	MemoryContextSwitchTo(oldCtx);
	MemoryContextDelete(insertCtx);

	PG_RETURN_BOOL(false);
}

示例#2

文件： gininsert.c 项目： Brar/postgres

bool
gininsert(Relation index, Datum *values, bool *isnull,
		  ItemPointer ht_ctid, Relation heapRel,
		  IndexUniqueCheck checkUnique,
		  IndexInfo *indexInfo)
{
	GinState   *ginstate = (GinState *) indexInfo->ii_AmCache;
	MemoryContext oldCtx;
	MemoryContext insertCtx;
	int			i;

	/* Initialize GinState cache if first call in this statement */
	if (ginstate == NULL)
	{
		oldCtx = MemoryContextSwitchTo(indexInfo->ii_Context);
		ginstate = (GinState *) palloc(sizeof(GinState));
		initGinState(ginstate, index);
		indexInfo->ii_AmCache = (void *) ginstate;
		MemoryContextSwitchTo(oldCtx);
	}

	insertCtx = AllocSetContextCreate(CurrentMemoryContext,
									  "Gin insert temporary context",
									  ALLOCSET_DEFAULT_SIZES);

	oldCtx = MemoryContextSwitchTo(insertCtx);

	if (GinGetUseFastUpdate(index))
	{
		GinTupleCollector collector;

		memset(&collector, 0, sizeof(GinTupleCollector));

		for (i = 0; i < ginstate->origTupdesc->natts; i++)
			ginHeapTupleFastCollect(ginstate, &collector,
									(OffsetNumber) (i + 1),
									values[i], isnull[i],
									ht_ctid);

		ginHeapTupleFastInsert(ginstate, &collector);
	}
	else
	{
		for (i = 0; i < ginstate->origTupdesc->natts; i++)
			ginHeapTupleInsert(ginstate, (OffsetNumber) (i + 1),
							   values[i], isnull[i],
							   ht_ctid);
	}

	MemoryContextSwitchTo(oldCtx);
	MemoryContextDelete(insertCtx);

	return false;
}

示例#3

文件： gininsert.c 项目： Hu1-Li/postgres

bool
gininsert(Relation index, Datum *values, bool *isnull,
		  ItemPointer ht_ctid, Relation heapRel,
		  IndexUniqueCheck checkUnique)
{
	GinState	ginstate;
	MemoryContext oldCtx;
	MemoryContext insertCtx;
	int			i;

	insertCtx = AllocSetContextCreate(CurrentMemoryContext,
									  "Gin insert temporary context",
									  ALLOCSET_DEFAULT_MINSIZE,
									  ALLOCSET_DEFAULT_INITSIZE,
									  ALLOCSET_DEFAULT_MAXSIZE);

	oldCtx = MemoryContextSwitchTo(insertCtx);

	initGinState(&ginstate, index);

	if (GinGetUseFastUpdate(index))
	{
		GinTupleCollector collector;

		memset(&collector, 0, sizeof(GinTupleCollector));

		for (i = 0; i < ginstate.origTupdesc->natts; i++)
			ginHeapTupleFastCollect(&ginstate, &collector,
									(OffsetNumber) (i + 1),
									values[i], isnull[i],
									ht_ctid);

		ginHeapTupleFastInsert(&ginstate, &collector);
	}
	else
	{
		for (i = 0; i < ginstate.origTupdesc->natts; i++)
			ginHeapTupleInsert(&ginstate, (OffsetNumber) (i + 1),
							   values[i], isnull[i],
							   ht_ctid);
	}

	MemoryContextSwitchTo(oldCtx);
	MemoryContextDelete(insertCtx);

	return false;
}