[td-225]fix compiler error.

src/client/src/tscServer.c

@@ -1013,7 +1013,7 @@ int tscBuildQueryMsg(SSqlObj *pSql, SSqlInfo *pInfo) {
     pQueryMsg->tsBuf.tsNumOfBlocks = htonl(pQueryMsg->tsBuf.tsNumOfBlocks);
   }
 
-  int32_t numOfOperator = taosArrayGetSize(queryOperator);
+  int32_t numOfOperator = (int32_t) taosArrayGetSize(queryOperator);
   pQueryMsg->numOfOperator = htonl(numOfOperator);
   for(int32_t i = 0; i < numOfOperator; ++i) {
     int32_t *operator = taosArrayGet(queryOperator, i);

src/query/src/qPlan.c

@@ -16,11 +16,18 @@
 #define QNODE_TIMEWINDOW 11
 
 typedef struct SQueryNode {
-  int32_t type;
+  int32_t    type;         // the type of logic node
+  char      *name;         // the name of logic node
+
+  SSchema   *pSchema;      // the schema of the input SSDatablock
+  int32_t    numOfCols;    // number of input columns
+  SExprInfo *pExpr;        // the query functions or sql aggregations
+  int32_t    numOfOutput;  // number of result columns, which is also the number of pExprs
+
   // previous operator to generated result for current node to process
   // in case of join, multiple prev nodes exist.
   struct SQueryNode* prevNode;
-
+  struct SQueryNode* nextNode;
 } SQueryNode;
 
 // TODO create the query plan