PostgreSQL Source Code: src/include/executor/execScan.h File Reference (original) (raw)
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◆ ExecScanExtended()
Definition at line 152 of file execScan.h.
158{
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167 if (!qual && !projInfo)
168 {
170 return ExecScanFetch(node, epqstate, accessMtd, recheckMtd);
171 }
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183 for (;;)
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187 slot = ExecScanFetch(node, epqstate, accessMtd, recheckMtd);
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197 if (projInfo)
199 else
200 return slot;
201 }
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215 if (qual == NULL || ExecQual(qual, econtext))
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220 if (projInfo)
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228 else
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234 }
235 }
236 else
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243 }
244}
static pg_attribute_always_inline TupleTableSlot * ExecScanFetch(ScanState *node, EPQState *epqstate, ExecScanAccessMtd accessMtd, ExecScanRecheckMtd recheckMtd)
#define InstrCountFiltered1(node, delta)
static TupleTableSlot * ExecProject(ProjectionInfo *projInfo)
#define ResetExprContext(econtext)
static bool ExecQual(ExprState *state, ExprContext *econtext)
TupleTableSlot * ecxt_scantuple
TupleTableSlot * resultslot
ExprContext * ps_ExprContext
static TupleTableSlot * ExecClearTuple(TupleTableSlot *slot)
References ExprContext::ecxt_scantuple, ExecClearTuple(), ExecProject(), ExecQual(), ExecScanFetch(), InstrCountFiltered1, ProjectionInfo::pi_state, ScanState::ps, PlanState::ps_ExprContext, ResetExprContext, ExprState::resultslot, and TupIsNull.
Referenced by ExecScan(), ExecSeqScan(), ExecSeqScanWithProject(), ExecSeqScanWithQual(), and ExecSeqScanWithQualProject().
◆ ExecScanFetch()
Definition at line 32 of file execScan.h.
36{
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48 if (scanrelid == 0)
49 {
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59 if (!(*recheckMtd) (node, slot))
60 ExecClearTuple(slot);
61 return slot;
62 }
63 else if (epqstate->relsubs_done[scanrelid - 1])
64 {
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73 }
74 else if (epqstate->relsubs_slot[scanrelid - 1] != NULL)
75 {
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89 return NULL;
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92 if (!(*recheckMtd) (node, slot))
93 return ExecClearTuple(slot);
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95 return slot;
96 }
97 else if (epqstate->relsubs_rowmark[scanrelid - 1] != NULL)
98 {
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106 epqstate->relsubs_done[scanrelid - 1] = true;
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109 return NULL;
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113 return NULL;
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116 if (!(*recheckMtd) (node, slot))
117 return ExecClearTuple(slot);
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119 return slot;
120 }
121 }
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126 return (*accessMtd) (node);
127}
bool EvalPlanQualFetchRowMark(EPQState *epqstate, Index rti, TupleTableSlot *slot)
Assert(PointerIsAligned(start, uint64))
#define CHECK_FOR_INTERRUPTS()
ExecAuxRowMark ** relsubs_rowmark
TupleTableSlot ** relsubs_slot
TupleTableSlot * ss_ScanTupleSlot
References Assert(), CHECK_FOR_INTERRUPTS, EvalPlanQualFetchRowMark(), ExecClearTuple(), PlanState::plan, ScanState::ps, EPQState::relsubs_done, EPQState::relsubs_rowmark, EPQState::relsubs_slot, ScanState::ss_ScanTupleSlot, and TupIsNull.
Referenced by ExecScanExtended().