darw-soptim opened a new issue, #33902: URL: https://github.com/apache/shardingsphere/issues/33902
## 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? 5.5.1 ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy? ShardingSphere ### Expected behavior I am querying for "NAME_\\\\%\_% " it should output Row: head_id=1, head_name=NAME_%\_1 Row: head_id=2, head_name=NAME_%\_2 Row: head_id=3, head_name=NAME_%\_3 Row: head_id=4, head_name=NAME_%\_4 Row: head_id=5, head_name=NAME_%\_5 ### Actual behavior but got this error. most likely due to ESCAPE '\' org.apache.shardingsphere.infra.exception.dialect.exception.syntax.sql.DialectSQLParsingException: You have an error in your SQL syntax: SELECT th1_0.head_id, th1_0.head_name FROM mtsm_timeseries.ts_head th1_0 WHERE th1_0.head_name like ? ESCAPE '\' ORDER BY th1_0.head_id OFFSET ? ROWS FETCH FIRST ? ROWS ONLY, null at org.apache.shardingsphere.infra.parser.ShardingSphereSQLParserEngine.getException(ShardingSphereSQLParserEngine.java:66) at org.apache.shardingsphere.infra.parser.ShardingSphereSQLParserEngine.parse(ShardingSphereSQLParserEngine.java:59) at org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSpherePreparedStatement.parseSQL(ShardingSpherePreparedStatement.java:163) at org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSpherePreparedStatement.<init>(ShardingSpherePreparedStatement.java:145) at org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSpherePreparedStatement.<init>(ShardingSpherePreparedStatement.java:117) at org.apache.shardingsphere.driver.jdbc.core.connection.ShardingSphereConnection.prepareStatement(ShardingSphereConnection.java:111) at ShardingIntegrationTest.testQueryWithLikeAndPagination(ShardingIntegrationTest.java:115) at java.base/java.lang.reflect.Method.invoke(Method.java:580) ### Reason analyze (If you can) If i put single '\\' then i will get this error: java.sql.SQLDataException: ORA-01425: Escapezeichen muss eine Zeichenfolge der Länge 1 sein Caused by: Error : 1425, Position : 95, Sql = SELECT th1_0.head_id, th1_0.head_name FROM TS_HEAD th1_0 WHERE th1_0.head_name like :1 ESCAPE '' ORDER BY th1_0.head_id OFFSET :2 ROWS FETCH FIRST :3 ROWS ONLY, OriginalSql = SELECT th1_0.head_id, th1_0.head_name FROM TS_HEAD th1_0 WHERE th1_0.head_name like ? **ESCAPE ''** ORDER BY th1_0.head_id OFFSET ? ROWS FETCH FIRST ? ROWS ONLY, Error Msg = ORA-01425: Escapezeichen muss eine Zeichenfolge der Länge 1 sein if i put four '\\\\\\\\\' then i will get this error: java.sql.SQLDataException: ORA-01425: Escapezeichen muss eine Zeichenfolge der Länge 1 sein Caused by: Error : 1425, Position : 95, Sql = SELECT th1_0.head_id, th1_0.head_name FROM TS_HEAD th1_0 WHERE th1_0.head_name like :1 ESCAPE '\\' ORDER BY th1_0.head_id OFFSET :2 ROWS FETCH FIRST :3 ROWS ONLY, OriginalSql = SELECT th1_0.head_id, th1_0.head_name FROM TS_HEAD th1_0 WHERE th1_0.head_name like ? **ESCAPE '\\'** ORDER BY th1_0.head_id OFFSET ? ROWS FETCH FIRST ? ROWS ONLY, Error Msg = ORA-01425: Escapezeichen muss eine Zeichenfolge der Länge 1 sein **Possible reason:** When the ESCAPE '\\\\' is passed to the ShardingSphere parser, it receives it as '\\' fails to parse correctly due to an illegal escape character—here it should instead be '\\\\'. However, testing with '\\\\\\\\' reveals that the ShardingSphere parser interprets it as '\\\\' and parses it correctly. After parsing, it forwards '\\\\' to Oracle, which results in the error ORA-0142 Testing with $ as escape character output the correct behaviour. Problen here seems the backslashes ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc. sharding.yaml ```yaml mode: type: Standalone repository: type: JDBC dataSources: ds_0: dataSourceClassName: com.zaxxer.hikari.HikariDataSource driverClassName: oracle.jdbc.OracleDriver jdbcUrl: jdbc:oracle:thin:@localhost:1521/FREEPDB1 username: system password: oracle maximumPoolSize: 10 ds_1: dataSourceClassName: com.zaxxer.hikari.HikariDataSource driverClassName: oracle.jdbc.OracleDriver jdbcUrl: jdbc:oracle:thin:@localhost:1522/FREEPDB1 username: system password: oracle maximumPoolSize: 10 rules: - !SHARDING tables: TS_HEAD: actualDataNodes: ds_${0..1}.TS_HEAD databaseStrategy: standard: shardingColumn: head_id shardingAlgorithmName: head_mod shardingAlgorithms: head_mod: type: INLINE props: algorithm-expression: ds_${Math.abs(head_id.hashCode()) % 2} props: sql-show: true check-table-metadata-enabled : true sqlFederation: sqlFederationEnabled: true executionPlanCache: initialCapacity: 2000 maximumSize: 65535 ``` ### Example codes for reproduce this issue (such as a github link). Test Class ```java class ShardingIntegrationTest { private static final String SHARDINGSPHERE_URL = "jdbc:shardingsphere:classpath:sharding.yaml"; private static final String SHARDINGSPHERE_USERNAME = "system"; private static final String SHARDINGSPHERE_PASSWORD = "oracle" @Test void testQueryWithLikeAndPagination() throws Exception { try (Connection connection = DriverManager.getConnection(SHARDINGSPHERE_URL, SHARDINGSPHERE_USERNAME, SHARDINGSPHERE_PASSWORD); PreparedStatement stmt = connection.prepareStatement( "SELECT th1_0.head_id, th1_0.head_name " + "FROM mtsm_timeseries.ts_head th1_0 " + "WHERE th1_0.head_name like ? ESCAPE '\\' " + "ORDER BY th1_0.head_id " + "OFFSET ? ROWS FETCH FIRST ? ROWS ONLY")) { // Set query parameters stmt.setString(1, "NAME_\\%_%"); // Match all names starting with "NAME_" stmt.setInt(2, 0); // Offset stmt.setInt(3, 10); // Limit (fetch first 10 rows) try (ResultSet rs = stmt.executeQuery()) { int rowCount = 0; while (rs.next()) { System.out.println("Row: head_id=" + rs.getInt("head_id") + ", head_name=" + rs.getString("head_name")); rowCount++; } assertTrue(rowCount > 0, "No rows returned"); } } } } ``` -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
