Merge pull request #321 from databendlabs/fix/getTimestamp-default

fix: getTimestamp should return null

Author: hantmac

databend-jdbc/src/main/java/com/databend/jdbc/AbstractDatabendResultSet.java

@@ -573,8 +573,13 @@ public Timestamp getTimestamp(int columnIndex)
     private Timestamp getTimestamp(int columnIndex, DateTimeZone localTimeZone)
             throws SQLException {
         Object value = column(columnIndex);
+
         if (value == null || value.toString().equalsIgnoreCase("null")) {
-            return new Timestamp(0);
+            return null;
+        }
+
+        if (localTimeZone == null || localTimeZone.getID() == null) {
+             return parseTimestampAsSqlTimestamp((String) value, ZoneId.systemDefault());
         }
 
         return parseTimestampAsSqlTimestamp((String) value, ZoneId.of(localTimeZone.getID()));