diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 612a3d4798791c9632ac89b9fc701935294f17e8..45990ee8d4c33af2d4958cef68a19f0c08723d81 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -8785,7 +8785,7 @@ int32_t validateSqlNode(SSqlObj* pSql, SSqlNode* pSqlNode, SQueryInfo* pQueryInf
    * select server_status();
    * select server_version();
    * select client_version();
-   * select current_database();
+   * select database();
    */
   if (pSqlNode->from == NULL) {
     assert(pSqlNode->fillType == NULL && pSqlNode->pGroupby == NULL && pSqlNode->pWhere == NULL &&
diff --git a/src/query/inc/sql.y b/src/query/inc/sql.y
index 8b43e55693c53fffb19e73b5b9ef7ccada4383a2..15503cbbd780d7c4665f02b59922f24deda7bcc9 100644
--- a/src/query/inc/sql.y
+++ b/src/query/inc/sql.y
@@ -493,7 +493,7 @@ union(Y) ::= union(Z) UNION ALL select(X). { Y = appendSelectClause(Z, X); }
 cmd ::= union(X). { setSqlInfo(pInfo, X, NULL, TSDB_SQL_SELECT); }
 
 // Support for the SQL exprssion without from & where subclauses, e.g.,
-// select current_database()
+// select database()
 // select server_version()
 // select client_version()
 // select server_state()