int
ExecCountSlotsExternalScan(ExternalScan *node)
{
return ExecCountSlotsNode(outerPlan(node)) +
ExecCountSlotsNode(innerPlan(node)) +
EXTSCAN_NSLOTS;
}
int
ExecCountSlotsHash(Hash *node)
{
return ExecCountSlotsNode(outerPlan(node)) +
ExecCountSlotsNode(innerPlan(node)) +
HASH_NSLOTS;
}
int
ExecCountSlotsLimit(Limit *node)
{
return ExecCountSlotsNode(outerPlan(node)) +
ExecCountSlotsNode(innerPlan(node)) +
LIMIT_NSLOTS;
}
int
ExecCountSlotsSeqScan(SeqScan *node)
{
return ExecCountSlotsNode(outerPlan(node)) +
ExecCountSlotsNode(innerPlan(node)) +
SEQSCAN_NSLOTS;
}
int
ExecCountSlotsMaterial(Material *node)
{
return ExecCountSlotsNode(outerPlan((Plan *) node)) +
ExecCountSlotsNode(innerPlan((Plan *) node)) +
MATERIAL_NSLOTS;
}
int
ExecCountSlotsAppendOnlyScan(AppendOnlyScan *node)
{
return ExecCountSlotsNode(outerPlan(node)) +
ExecCountSlotsNode(innerPlan(node)) +
AOSCAN_NSLOTS;
}
int
ExecCountSlotsUnique(Unique *node)
{
return ExecCountSlotsNode(outerPlan(node)) +
ExecCountSlotsNode(innerPlan(node)) +
UNIQUE_NSLOTS;
}
int
ExecCountSlotsFunctionScan(FunctionScan *node)
{
return ExecCountSlotsNode(outerPlan(node)) +
ExecCountSlotsNode(innerPlan(node)) +
FUNCTIONSCAN_NSLOTS;
}
int
ExecCountSlotsNestLoop(NestLoop *node)
{
return ExecCountSlotsNode(outerPlan(node)) +
ExecCountSlotsNode(innerPlan(node)) +
NESTLOOP_NSLOTS;
}
int
ExecCountSlotsSubqueryScan(SubqueryScan *node)
{
/*
* The subplan has its own tuple table and must not be counted here!
*/
return ExecCountSlotsNode(outerPlan(node)) +
ExecCountSlotsNode(innerPlan(node)) +
SUBQUERYSCAN_NSLOTS;
}
int
ExecCountSlotsCustomScan(CustomScan *node)
{
ListCell *plan;
int nSlots = 0;
foreach(plan, node->custom_plans)
nSlots += ExecCountSlotsNode((Plan *) lfirst(plan));
return nSlots +
ExecCountSlotsNode(outerPlan(node)) +
ExecCountSlotsNode(innerPlan(node)) +
CUSTOM_SCAN_NSLOTS;
}
/* ------------------------------------------------------------------
* ExecCountSlotsShareInputScan
* ------------------------------------------------------------------
*/
int
ExecCountSlotsShareInputScan(ShareInputScan* node)
{
#define SHAREINPUT_NSLOTS 2
return ExecCountSlotsNode(outerPlan((Plan *) node))
+ SHAREINPUT_NSLOTS;
}
int
ExecCountSlotsSubqueryScan(SubqueryScan *node)
{
Assert(outerPlan(node) == NULL);
Assert(innerPlan(node) == NULL);
return ExecCountSlotsNode(node->subplan) +
SUBQUERYSCAN_NSLOTS;
}
/* Return number of TupleTableSlots used by nodePartitionSelector.*/
int
ExecCountSlotsPartitionSelector(PartitionSelector *node)
{
if (NULL != outerPlan(node))
{
return ExecCountSlotsNode(outerPlan(node)) + PARTITIONSELECTOR_NSLOTS;
}
return PARTITIONSELECTOR_NSLOTS;
}
int
ExecCountSlotsAppend(Append *node)
{
List *plan;
int nSlots = 0;
foreach(plan, node->appendplans)
nSlots += ExecCountSlotsNode((Plan *) lfirst(plan));
return nSlots + APPEND_NSLOTS;
}
/* ----------------------------------------------------------------
* ExecInitSubqueryScan
* ----------------------------------------------------------------
*/
SubqueryScanState *
ExecInitSubqueryScan(SubqueryScan *node, EState *estate)
{
SubqueryScanState *subquerystate;
RangeTblEntry *rte;
EState *sp_estate;
MemoryContext oldcontext;
/*
* SubqueryScan should not have any "normal" children.
*/
Assert(outerPlan(node) == NULL);
Assert(innerPlan(node) == NULL);
/*
* create state structure
*/
subquerystate = makeNode(SubqueryScanState);
subquerystate->ss.ps.plan = (Plan *) node;
subquerystate->ss.ps.state = estate;
/*
* Miscellaneous initialization
*
* create expression context for node
*/
ExecAssignExprContext(estate, &subquerystate->ss.ps);
/*
* initialize child expressions
*/
subquerystate->ss.ps.targetlist = (List *)
ExecInitExpr((Expr *) node->scan.plan.targetlist,
(PlanState *) subquerystate);
subquerystate->ss.ps.qual = (List *)
ExecInitExpr((Expr *) node->scan.plan.qual,
(PlanState *) subquerystate);
#define SUBQUERYSCAN_NSLOTS 2
/*
* tuple table initialization
*/
ExecInitResultTupleSlot(estate, &subquerystate->ss.ps);
ExecInitScanTupleSlot(estate, &subquerystate->ss);
/*
* initialize subquery
*
* This should agree with ExecInitSubPlan
*/
rte = rt_fetch(node->scan.scanrelid, estate->es_range_table);
Assert(rte->rtekind == RTE_SUBQUERY);
/*
* Do access checking on the rangetable entries in the subquery.
*/
ExecCheckRTPerms(rte->subquery->rtable);
/*
* The subquery needs its own EState because it has its own rangetable. It
* shares our Param ID space, however. XXX if rangetable access were done
* differently, the subquery could share our EState, which would eliminate
* some thrashing about in this module...
*/
sp_estate = CreateExecutorState();
subquerystate->sss_SubEState = sp_estate;
oldcontext = MemoryContextSwitchTo(sp_estate->es_query_cxt);
sp_estate->es_range_table = rte->subquery->rtable;
sp_estate->es_param_list_info = estate->es_param_list_info;
sp_estate->es_param_exec_vals = estate->es_param_exec_vals;
sp_estate->es_tupleTable =
ExecCreateTupleTable(ExecCountSlotsNode(node->subplan) + 10);
sp_estate->es_snapshot = estate->es_snapshot;
sp_estate->es_crosscheck_snapshot = estate->es_crosscheck_snapshot;
sp_estate->es_instrument = estate->es_instrument;
/*
* Start up the subplan (this is a very cut-down form of InitPlan())
*/
subquerystate->subplan = ExecInitNode(node->subplan, sp_estate);
MemoryContextSwitchTo(oldcontext);
subquerystate->ss.ps.ps_TupFromTlist = false;
/*
* Initialize scan tuple type (needed by ExecAssignScanProjectionInfo)
*/
ExecAssignScanType(&subquerystate->ss,
ExecGetResultType(subquerystate->subplan),
false);
/*
* Initialize result tuple type and projection info.
*/
ExecAssignResultTypeFromTL(&subquerystate->ss.ps);
ExecAssignScanProjectionInfo(&subquerystate->ss);
return subquerystate;
}
int
ExecCountSlotsRepeat(Repeat *node)
{
return ExecCountSlotsNode(outerPlan(node)) + 1;
}
int
ExecCountSlotsIndexScan(IndexScan *node)
{
return ExecCountSlotsNode(outerPlan((Plan *) node)) +
ExecCountSlotsNode(innerPlan((Plan *) node)) + INDEXSCAN_NSLOTS;
}
int
ExecCountSlotsGroup(Group *node)
{
return ExecCountSlotsNode(outerPlan(node)) + GROUP_NSLOTS;
}
int
ExecCountSlotsBitmapIndexScan(BitmapIndexScan *node)
{
return ExecCountSlotsNode(outerPlan((Plan *) node)) +
ExecCountSlotsNode(innerPlan((Plan *) node)) + BITMAPINDEXSCAN_NSLOTS;
}
int
ExecCountSlotsBitmapHeapScan(BitmapHeapScan *node)
{
return ExecCountSlotsNode(outerPlan((Plan *) node)) +
ExecCountSlotsNode(innerPlan((Plan *) node)) + BITMAPHEAPSCAN_NSLOTS;
}
/* Returns the number of slots needed for this operator */
int
ExecCountSlotsBitmapTableScan(BitmapTableScan *node)
{
return ExecCountSlotsNode(outerPlan((Plan *) node)) +
ExecCountSlotsNode(innerPlan((Plan *) node)) + BITMAPTABLESCAN_NSLOTS;
}
int
ExecCountSlotsResult(Result *node)
{
return ExecCountSlotsNode(outerPlan(node)) + RESULT_NSLOTS;
}
/* Return number of TupleTableSlots used by nodeDML.*/
int
ExecCountSlotsDML(DML *node)
{
return ExecCountSlotsNode(outerPlan(node)) + DML_NSLOTS;
}
