ddacxhs opened a new issue #9427: URL: https://github.com/apache/shardingsphere/issues/9427
## Bug Report **For English only**, other languages will not accept. Before report a bug, make sure you have: - Searched open and closed [GitHub issues](https://github.com/apache/shardingsphere/issues). - Read documentation: [ShardingSphere Doc](https://shardingsphere.apache.org/document/current/en/overview). Please pay attention on issues you submitted, because we maybe need more details. If no response anymore and we cannot reproduce it on current information, we will **close it**. Please answer these questions before submitting your issue. Thanks! ### Which version of ShardingSphere did you use? 5.0.0-alpha ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy? ShardingSphere-JDBC ### Expected behavior no error ### Actual behavior Exception in thread "main" java.lang.IllegalArgumentException: Actual value: 1, Expected value: 46 ### Reason analyze (If you can) org.apache.shardingsphere.driver.jdbc.core.resultset.ShardingSphereResultSetMetaData#getColumnCount ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc. ### Example codes for reproduce this issue (such as a github link). ```java @SpringBootApplication public class DemoApplication { public static void main(String[] args) throws Exception { ConfigurableApplicationContext applicationContext = SpringApplication.run(DemoApplication.class, args); final DataSource dataSource = applicationContext.getBean(DataSource.class); final DataSource shardingSphereDatasource = createShardingSphereDatasource(dataSource); final int normalResultColumnCount = getResultColumnCount(dataSource); final int shardingSphereResultColumnCount = getResultColumnCount(shardingSphereDatasource); System.out.printf("normalResultColumnCount: %d, shardingSphereResultColumnCount: %d\n", normalResultColumnCount, shardingSphereResultColumnCount); Assert.isTrue(normalResultColumnCount == shardingSphereResultColumnCount, String.format("Actual value: %d, Expected value: %d", shardingSphereResultColumnCount, normalResultColumnCount)); } public static DataSource createShardingSphereDatasource(DataSource dataSource) throws SQLException { Map<String, DataSource> dataSourceMap = new HashMap<>(); dataSourceMap.put("master", dataSource); Properties properties = new Properties(); ReplicaQueryDataSourceRuleConfiguration replicaQueryDataSourceRuleConfiguration = new ReplicaQueryDataSourceRuleConfiguration("test", "master", new ArrayList<>(dataSourceMap.keySet()), "ROUND_ROBIN"); Map<String, ShardingSphereAlgorithmConfiguration> shardingSphereAlgorithmConfigurationMap = new HashMap<>(); shardingSphereAlgorithmConfigurationMap.put("ROUND_ROBIN", new ShardingSphereAlgorithmConfiguration("ROUND_ROBIN", properties)); ReplicaQueryRuleConfiguration replicaQueryRuleConfiguration = new ReplicaQueryRuleConfiguration(Collections.singletonList(replicaQueryDataSourceRuleConfiguration), shardingSphereAlgorithmConfigurationMap); return ShardingSphereDataSourceFactory.createDataSource(dataSourceMap, Collections.singletonList(replicaQueryRuleConfiguration), properties); } public static int getResultColumnCount(DataSource dataSource) throws SQLException { Connection connection = DataSourceUtils.getConnection(dataSource); try { // example sql String sql = "SELECT u.*, d.Db FROM `mysql`.`user` u INNER JOIN `mysql`.`db` d ON d.`User` = u.`User`"; try (final PreparedStatement preparedStatement = connection.prepareStatement(sql)) { try (ResultSet resultSet = preparedStatement.executeQuery()) { return resultSet.getMetaData().getColumnCount(); } } } finally { DataSourceUtils.releaseConnection(connection, dataSource); } } } ``` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
