!825 分区表BitmapHeapScan与BitmapHeapIndexScan代码优化。

Merge pull request !825 from Yuejia/optimize

src/gausskernel/optimizer/util/pruning.cpp

@@ -76,6 +76,8 @@ static PruningResult* partitionEqualPruningWalker(PartitionType partType, Expr*
     ((pruningResult)->boundary->partitionKeyNum > 1 && (topValue) && PointerIsValid((topValue)[0]) && \
         !(pruningResult)->boundary->maxClose[0])
 
+#define IF_OPEN_PARTITION_PRUNING 0
+
 static PartitionMap* GetRelPartitionMap(Relation relation)
 {
     return relation->partMap;
@@ -630,18 +632,17 @@ PruningResult* partitionPruningForExpr(PlannerInfo* root, RangeTblEntry* rte, Re
     else
         result = partitionPruningWalker(expr, context);
     if (result->exprPart != NULL || result->paramArg != NULL) {
-#ifndef ENABLE_MULTIPLE_NODES
-        destroyPruningResult(result);
-        result = getFullPruningResult(rel);
-        return result;
-#else
+        if (!IF_OPEN_PARTITION_PRUNING) {
+            destroyPruningResult(result);
+            result = getFullPruningResult(rel);
+            return result;
+        }
         Param* paramArg = (Param *)copyObject(result->paramArg);
         destroyPruningResult(result);
         result = getFullPruningResult(rel);
         result->expr = expr;
         result->paramArg = paramArg;
         return result;
-#endif
     }
     /* Never happen, just to be self-contained */
     if (!PointerIsValid(result)) {

src/gausskernel/runtime/executor/execMain.cpp

@@ -1448,6 +1448,10 @@ void InitPlan(QueryDesc *queryDesc, int eflags)
     }
     planstate = ExecInitNode(plan, estate, eflags);
 
+    if (estate->pruningResult) {
+        destroyPruningResult(estate->pruningResult);
+        estate->pruningResult = NULL;
+    }
     /*
      * Get the tuple descriptor describing the type of tuples to return.
      */

src/gausskernel/runtime/executor/execUtils.cpp

@@ -170,6 +170,8 @@ EState* CreateExecutorState(void)
     estate->es_material_of_subplan = NIL;
     estate->es_recursive_next_iteration = false;
 
+    estate->pruningResult = NULL;
+
     /*
      * Return the executor state structure
      */

src/gausskernel/runtime/executor/nodeBitmapHeapscan.cpp

@@ -786,6 +786,10 @@ static void ExecInitPartitionForBitmapHeapScan(BitmapHeapScanState* scanstate, E
         PruningResult* resultPlan = NULL;
         if (plan->scan.pruningInfo->expr) {
             resultPlan = GetPartitionInfo(plan->scan.pruningInfo, estate, currentRelation);
+            if (estate->pruningResult) {
+                destroyPruningResult(estate->pruningResult);
+            }
+            estate->pruningResult = resultPlan;
         } else {
             resultPlan = plan->scan.pruningInfo;
         }

src/gausskernel/runtime/executor/nodeBitmapIndexscan.cpp

@@ -491,7 +491,13 @@ void ExecInitPartitionForBitmapIndexScan(BitmapIndexScanState* indexstate, EStat
         indexstate->lockMode = lock;
         PruningResult* resultPlan = NULL;
         if (plan->scan.pruningInfo->expr) {
-            resultPlan = GetPartitionInfo(plan->scan.pruningInfo, estate, rel);
+            if (estate->pruningResult) {
+                resultPlan = estate->pruningResult;
+            } else {
+                resultPlan = GetPartitionInfo(plan->scan.pruningInfo, estate, rel);
+                destroyPruningResult(estate->pruningResult);
+                estate->pruningResult = resultPlan;
+            }
         } else {
             resultPlan = plan->scan.pruningInfo;
         }

src/include/nodes/execnodes.h

@@ -573,6 +573,8 @@ typedef struct EState {
 #ifdef ENABLE_MOT
     JitExec::JitContext* mot_jit_context;   /* MOT JIT context required for executing LLVM jitted code */
 #endif
+
+    PruningResult* pruningResult;
 } EState;
 
 /*