diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 9fc1d880fc9f7ae493c4290d3924402aefd873c2..b2b544c905ce8b8362b2027ebaf3d0259506ae3a 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -2733,10 +2733,9 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
             }
 
             pTableMetaInfo = tscGetMetaInfo(pQueryInfo, index.tableIndex);
-            SSchema* pSchema = tscGetTableColumnSchema(pTableMetaInfo->pTableMeta, index.columnIndex);
 
-            if (!IS_NUMERIC_TYPE(pSchema->type)) {
-              return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg1);
+            if (pParamElem->pNode->columnName.z == NULL) {
+              return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg2);
             }
 
             // functions can not be applied to tags
@@ -2745,6 +2744,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
             }
 
             char name[TSDB_COL_NAME_LEN] = {0};
+            SSchema* pSchema = tscGetTableColumnSchema(pTableMetaInfo->pTableMeta, index.columnIndex);
 
             bool multiColOutput = taosArrayGetSize(pItem->pNode->Expr.paramList) > 1;
             setResultColName(name, pItem, cvtFunc.originFuncId, &pParamElem->pNode->columnName, multiColOutput);