fix: empty tbname param issue

source/libs/planner/src/planLogicCreater.c

@@ -45,8 +45,10 @@ static void setColumnInfo(SFunctionNode* pFunc, SColumnNode* pCol, bool isPartit
     case FUNCTION_TYPE_TBNAME:
       pCol->colType = COLUMN_TYPE_TBNAME;
       SValueNode* pVal = (SValueNode*)nodesListGetNode(pFunc->pParameterList, 0);
-      strcpy(pCol->tableName, pVal->literal);
-      strcpy(pCol->tableAlias, pVal->literal);
+      if (pVal) {
+        strcpy(pCol->tableName, pVal->literal);
+        strcpy(pCol->tableAlias, pVal->literal);
+      }
       break;
     case FUNCTION_TYPE_WSTART:
       if (!isPartitionBy) {