From 6f6c1f9cd61848b9649b4b54d5baaadc986ee140 Mon Sep 17 00:00:00 2001
From: zyyang <zyyang@taosdata.com>
Date: Thu, 21 Jan 2021 14:13:30 +0800
Subject: [PATCH] change

---
 .../java/com/taosdata/jdbc/AbstractDatabaseMetaData.java    | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractDatabaseMetaData.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractDatabaseMetaData.java
index 27c68e54c5..917f2aead9 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractDatabaseMetaData.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractDatabaseMetaData.java
@@ -84,7 +84,7 @@ public abstract class AbstractDatabaseMetaData implements DatabaseMetaData, Wrap
     }
 
     public boolean storesLowerCaseIdentifiers() throws SQLException {
-        return false;
+        return true;
     }
 
     public boolean storesMixedCaseIdentifiers() throws SQLException {
@@ -182,7 +182,7 @@ public abstract class AbstractDatabaseMetaData implements DatabaseMetaData, Wrap
     }
 
     public boolean supportsGroupBy() throws SQLException {
-        return false;
+        return true;
     }
 
     public boolean supportsGroupByUnrelated() throws SQLException {
@@ -497,7 +497,7 @@ public abstract class AbstractDatabaseMetaData implements DatabaseMetaData, Wrap
             throws SQLException;
 
     public ResultSet getSchemas() throws SQLException {
-        return getEmptyResultSet();
+        return null;
     }
 
     public abstract ResultSet getCatalogs() throws SQLException;