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Functions
nodeResult.h File Reference
#include "nodes/execnodes.h"
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Functions

ResultState *  ExecInitResult (Result *node, EState *estate, int eflags)
 
void  ExecEndResult (ResultState *node)
 
void  ExecResultMarkPos (ResultState *node)
 
void  ExecResultRestrPos (ResultState *node)
 
void  ExecReScanResult (ResultState *node)
 

Function Documentation

◆ ExecEndResult()

void ExecEndResult ( ResultState *  node )

Definition at line 240 of file nodeResult.c.

241{
242 /*
243 * shut down subplans
244 */
246}
void ExecEndNode(PlanState *node)
Definition: execProcnode.c:562
#define outerPlanState(node)
Definition: execnodes.h:1255

References ExecEndNode(), and outerPlanState.

Referenced by ExecEndNode().

◆ ExecInitResult()

ResultState * ExecInitResult ( Result *  node,
EState *  estate,
int  eflags 
)

Definition at line 180 of file nodeResult.c.

181{
182 ResultState *resstate;
183
184 /* check for unsupported flags */
185 Assert(!(eflags & (EXEC_FLAG_MARK | EXEC_FLAG_BACKWARD)) ||
186 outerPlan(node) != NULL);
187
188 /*
189 * create state structure
190 */
191 resstate = makeNode(ResultState);
192 resstate->ps.plan = (Plan *) node;
193 resstate->ps.state = estate;
194 resstate->ps.ExecProcNode = ExecResult;
195
196 resstate->rs_done = false;
197 resstate->rs_checkqual = (node->resconstantqual != NULL);
198
199 /*
200 * Miscellaneous initialization
201 *
202 * create expression context for node
203 */
204 ExecAssignExprContext(estate, &resstate->ps);
205
206 /*
207 * initialize child nodes
208 */
209 outerPlanState(resstate) = ExecInitNode(outerPlan(node), estate, eflags);
210
211 /*
212 * we don't use inner plan
213 */
214 Assert(innerPlan(node) == NULL);
215
216 /*
217 * Initialize result slot, type and projection.
218 */
220 ExecAssignProjectionInfo(&resstate->ps, NULL);
221
222 /*
223 * initialize child expressions
224 */
225 resstate->ps.qual =
226 ExecInitQual(node->plan.qual, (PlanState *) resstate);
227 resstate->resconstantqual =
228 ExecInitQual((List *) node->resconstantqual, (PlanState *) resstate);
229
230 return resstate;
231}
ExprState * ExecInitQual(List *qual, PlanState *parent)
Definition: execExpr.c:229
PlanState * ExecInitNode(Plan *node, EState *estate, int eflags)
Definition: execProcnode.c:142
const TupleTableSlotOps TTSOpsVirtual
Definition: execTuples.c:84
void ExecInitResultTupleSlotTL(PlanState *planstate, const TupleTableSlotOps *tts_ops)
Definition: execTuples.c:1988
void ExecAssignExprContext(EState *estate, PlanState *planstate)
Definition: execUtils.c:485
void ExecAssignProjectionInfo(PlanState *planstate, TupleDesc inputDesc)
Definition: execUtils.c:583
#define EXEC_FLAG_BACKWARD
Definition: executor.h:69
#define EXEC_FLAG_MARK
Definition: executor.h:70
Assert(PointerIsAligned(start, uint64))
static TupleTableSlot * ExecResult(PlanState *pstate)
Definition: nodeResult.c:67
#define makeNode(_type_)
Definition: nodes.h:161
#define innerPlan(node)
Definition: plannodes.h:251
#define outerPlan(node)
Definition: plannodes.h:252
Definition: pg_list.h:54
ExprState * qual
Definition: execnodes.h:1180
Plan * plan
Definition: execnodes.h:1159
EState * state
Definition: execnodes.h:1161
ExecProcNodeMtd ExecProcNode
Definition: execnodes.h:1165
Definition: plannodes.h:177
List * qual
Definition: plannodes.h:222
ExprState * resconstantqual
Definition: execnodes.h:1363
bool rs_done
Definition: execnodes.h:1364
PlanState ps
Definition: execnodes.h:1362
bool rs_checkqual
Definition: execnodes.h:1365
Node * resconstantqual
Definition: plannodes.h:290
Plan plan
Definition: plannodes.h:288

References Assert(), EXEC_FLAG_BACKWARD, EXEC_FLAG_MARK, ExecAssignExprContext(), ExecAssignProjectionInfo(), ExecInitNode(), ExecInitQual(), ExecInitResultTupleSlotTL(), PlanState::ExecProcNode, ExecResult(), innerPlan, makeNode, outerPlan, outerPlanState, PlanState::plan, Result::plan, ResultState::ps, PlanState::qual, Plan::qual, ResultState::resconstantqual, Result::resconstantqual, ResultState::rs_checkqual, ResultState::rs_done, PlanState::state, and TTSOpsVirtual.

Referenced by ExecInitNode().

◆ ExecReScanResult()

void ExecReScanResult ( ResultState *  node )

Definition at line 249 of file nodeResult.c.

250{
252
253 node->rs_done = false;
254 node->rs_checkqual = (node->resconstantqual != NULL);
255
256 /*
257 * If chgParam of subnode is not null then plan will be re-scanned by
258 * first ExecProcNode.
259 */
260 if (outerPlan && outerPlan->chgParam == NULL)
262}
void ExecReScan(PlanState *node)
Definition: execAmi.c:77

References ExecReScan(), outerPlan, outerPlanState, ResultState::resconstantqual, ResultState::rs_checkqual, and ResultState::rs_done.

Referenced by ExecReScan().

◆ ExecResultMarkPos()

void ExecResultMarkPos ( ResultState *  node )

Definition at line 146 of file nodeResult.c.

147{
149
150 if (outerPlan != NULL)
152 else
153 elog(DEBUG2, "Result nodes do not support mark/restore");
154}
#define DEBUG2
Definition: elog.h:29
#define elog(elevel,...)
Definition: elog.h:226
void ExecMarkPos(PlanState *node)
Definition: execAmi.c:327

References DEBUG2, elog, ExecMarkPos(), outerPlan, and outerPlanState.

Referenced by ExecMarkPos().

◆ ExecResultRestrPos()

void ExecResultRestrPos ( ResultState *  node )

Definition at line 161 of file nodeResult.c.

162{
164
165 if (outerPlan != NULL)
167 else
168 elog(ERROR, "Result nodes do not support mark/restore");
169}
#define ERROR
Definition: elog.h:39
void ExecRestrPos(PlanState *node)
Definition: execAmi.c:376

References elog, ERROR, ExecRestrPos(), outerPlan, and outerPlanState.

Referenced by ExecRestrPos().

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