INSERT SUB FUSION

opfusion support insert ... select

src/include/executor/node/nodeSeqscan.h

@@ -16,6 +16,7 @@
 
 #include "nodes/execnodes.h"
 
+extern TupleTableSlot* SeqNext(SeqScanState* node);
 extern SeqScanState* ExecInitSeqScan(SeqScan* node, EState* estate, int eflags);
 extern void ExecEndSeqScan(SeqScanState* node);
 extern void ExecSeqMarkPos(SeqScanState* node);

src/include/opfusion/opfusion_insert.h

@@ -72,4 +72,53 @@ private:
     InsertFusionLocaleVariable m_c_local;
 };
 
+class InsertSubFusion : public OpFusion {
+public:
+    InsertSubFusion(MemoryContext context, CachedPlanSource* psrc, List* plantree_list, ParamListInfo params);
+
+    ~InsertSubFusion(){};
+
+    bool execute(long max_rows, char* completionTag);
+
+    void InitLocals(ParamListInfo params);
+
+    void InitGlobals();
+
+    void InitPlan();
+
+private:
+
+    unsigned long ExecInsert(Relation rel, ResultRelInfo* resultRelInfo);
+
+    struct VarLoc {
+        int varNo;
+        int scanKeyIndx;
+    };
+    struct InsertSubFusionGlobalVariable {
+        int m_targetParamNum;
+
+        int m_targetConstNum;
+
+        ConstLoc* m_targetConstLoc;
+
+        int m_varNum;
+
+        VarLoc* m_targetVarLoc;
+    };
+    InsertSubFusionGlobalVariable* m_c_global;
+
+    struct InsertSubFusionLocaleVariable {
+        EState* m_estate; /* Top estate*/
+        Datum* m_curVarValue;
+        bool* m_curVarIsnull;
+        Plan* m_plan;
+        SeqScan* m_ss_plan;
+        PlanState* m_ps;
+        SeqScanState* m_sub_ps;
+        ModifyTableState* m_mt_state;
+    };
+
+    InsertSubFusionLocaleVariable m_c_local;
+};
+
 #endif /* SRC_INCLUDE_OPFUSION_OPFUSION_INSERT_H_ */

src/include/opfusion/opfusion_util.h

@@ -50,6 +50,7 @@ enum FusionType {
     INSERT_FUSION,
     UPDATE_FUSION,
     DELETE_FUSION,
+    INSERT_SUB_FUSION,
     AGG_INDEX_FUSION,
     SORT_INDEX_FUSION,
 
@@ -114,6 +115,7 @@ enum FusionType {
     NOBYPASS_VERSION_SCAN_PLAN,
     NOBYPASS_PARTITION_TYPE_NOT_SUPPORT,
     NOBYPASS_REPLACE_NOT_SUPPORT,
+    NOBYPASS_INSERT_SUB_FUSION_NOT_SUPPORT_PARTITION_BYPASS,
     NOBYPASS_GPC_NOT_SUPPORT_PARTITION_BYPASS
 };