c7b25efcff
1. alter large sequence
2. subpartition
2.1 split subpartition
2.2 truncate subpartition
3. 支持load
4. 支持start-with/connect-by
5. ...
59 lines
2.3 KiB
C
59 lines
2.3 KiB
C
/* -------------------------------------------------------------------------
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*
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* nodeCtescan.h
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*
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*
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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* Portions Copyright (c) 2021, openGauss Contributors
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*
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* src/include/executor/nodeCtescan.h
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*
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* -------------------------------------------------------------------------
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*/
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#ifndef NODECTESCAN_H
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#define NODECTESCAN_H
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#include "nodes/execnodes.h"
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extern CteScanState* ExecInitCteScan(CteScan* node, EState* estate, int eflags);
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extern TupleTableSlot* ExecCteScan(CteScanState* node);
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extern void ExecEndCteScan(CteScanState* node);
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extern void ExecReScanCteScan(CteScanState* node);
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/*
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* stuffs for START WITH ... CONNECT BY support
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*/
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#define SYS_CONNECT_BY_PATH_FUNCOID 9350
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#define CONNECT_BY_ROOT_FUNCOID 9351
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#define IsHierarchicalQueryFuncOid(funcOid) \
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((funcOid == SYS_CONNECT_BY_PATH_FUNCOID || funcOid == CONNECT_BY_ROOT_FUNCOID))
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typedef struct StartWithFuncEvalState
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{
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ExprContext *sw_econtext;
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ExprState *sw_exprstate;
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} StartWithFuncEvalState;
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extern StartWithOpState* ExecInitStartWithOp(StartWithOp* node, EState* estate, int eflags);
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extern TupleTableSlot* ExecStartWithOp(StartWithOpState *node);
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extern void ExecEndStartWithOp(StartWithOpState *node);
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extern void ExecReScanStartWithOp(StartWithOpState *node);
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extern TupleTableSlot *ConvertRuScanOutputSlot(RecursiveUnionState *rustate,
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TupleTableSlot *scanSlot,
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bool inrecursing);
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extern TupleTableSlot *ConvertStartWithOpOutputSlot(StartWithOpState *node,
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TupleTableSlot *srcSlot,
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TupleTableSlot *dstSlot);
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extern TupleTableSlot *ConvertRuScanOutputSlot(RecursiveUnionState *rustate,
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TupleTableSlot *scanSlot,
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bool inrecursing);
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extern bool CheckCycleExeception(StartWithOpState *node, TupleTableSlot *slot);
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extern int SibglingsKeyCmp(Datum x, Datum y, SortSupport ssup);
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extern int SibglingsKeyCmpFast(Datum x, Datum y, SortSupport ssup);
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#endif /* NODECTESCAN_H */
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