refactor:do some internal refactor.

source/libs/executor/src/executorimpl.c

@@ -1078,7 +1078,7 @@ void setBlockStatisInfo(SqlFunctionCtx* pCtx, SExprInfo* pExprInfo, SSDataBlock*
 }
 
 // set the output buffer for the selectivity + tag query
-static int32_t setCtxTagColumnInfo(SqlFunctionCtx* pCtx, int32_t numOfOutput) {
+static int32_t setSelectValueColumnInfo(SqlFunctionCtx* pCtx, int32_t numOfOutput) {
   int32_t num = 0;
 
   SqlFunctionCtx*  p = NULL;
@@ -1218,7 +1218,7 @@ SqlFunctionCtx* createSqlFunctionCtx(SExprInfo* pExprInfo, int32_t numOfOutput,
         (int32_t)((*rowCellInfoOffset)[i - 1] + sizeof(SResultRowEntryInfo) + pFuncCtx[i - 1].resDataInfo.interBufSize);
   }
 
-  setCtxTagColumnInfo(pFuncCtx, numOfOutput);
+  setSelectValueColumnInfo(pFuncCtx, numOfOutput);
   return pFuncCtx;
 }