【资源池化】openGauss算子下推特性合入

1.opengauss内核适配
2.ndpplugin

src/include/executor/instrument.h

@@ -325,6 +325,10 @@ typedef struct Instrumentation {
     int ec_libodbc_type;                       /* ec execute libodbc_type*/
     int64 ec_fetch_count;                      /* ec fetch count*/
     RecursiveInfo recursiveInfo;
+
+    int ndp_pushdown_page;
+    int ndp_sendback_page;
+    int ndp_handled;
 } Instrumentation;
 
 /* instrumentation data */

src/include/executor/tuptable.h

@@ -164,6 +164,7 @@ typedef struct TupleTableSlot {
     MemoryContext tts_per_tuple_mcxt;
 #endif
     TableAmType tts_tupslotTableAm;      /* slots's tuple table type */
+    bool tts_ndpAggHandled;              /* slot is from ndp backend, handled by aggregate */
 } TupleTableSlot;
 
 #define TTS_HAS_PHYSICAL_TUPLE(slot) ((slot)->tts_tuple != NULL && (slot)->tts_tuple != &((slot)->tts_minhdr))