mysql 是否为空

seatunnel-datasource/seatunnel-datasource-plugins/datasource-jdbc-mysql/src/main/java/org/apache/seatunnel/datasource/plugin/mysql/jdbc/MysqlJdbcDataSourceChannel.java

@@ -157,7 +157,7 @@ public class MysqlJdbcDataSourceChannel implements DataSourceChannelExt {
                 tableField.setComment(resultSet.getString("COLUMN_COMMENT"));
                 tableField.setDefaultValue(resultSet.getString("COLUMN_DEFAULT"));
                 Object nullable = resultSet.getObject("IS_NULLABLE");
-                tableField.setNullable(Boolean.TRUE.toString().equals(nullable.toString()));
+                tableField.setNullable("YES".equals(nullable.toString()));
                 tableFields.add(tableField);
             }