PeiMouRen opened a new issue, #26537:
URL: https://github.com/apache/shardingsphere/issues/26537
## Bug Report
### Which version of ShardingSphere did you use?
5.3.2
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy
### Expected behavior
proxy routing data source error when I query single table.
### Actual behavior
The proxy routes correctly to the data source where the single table exist.
### Reason analyze (If you can)
I don't known.
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule
configuration, when exception occur etc.
**single table cofig**
```sql
> SHOW DEFAULT SINGLE TABLE STORAGE UNIT;
storage_unit_name
-------------------
RANDOM
> SHOW SINGLE TABLES LIKE 't_test%';
table_name | storage_unit_name
------------+-------------------
t_test | ds_4
t_test1 | ds_4
```
**query a single table**
```sql
> select * from t_test;
ERROR: relation "t_test" does not exist
LINE 1: select * from t_test;
```
**proxy log**
```
2023-06-25 14:55:03,854 [Connection-2-ThreadExecutor] INFO
ShardingSphere-SQL - Logic SQL: select * from t_test;
2023-06-25 14:55:03,855 [Connection-2-ThreadExecutor] INFO
ShardingSphere-SQL - Actual SQL: ds_0 ::: select * from t_test;
2023-06-25 14:55:03,855 [Connection-2-ThreadExecutor] ERROR
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
org.postgresql.util.PSQLException: ERROR: relation "t_test" does not exist
位置：15
at
org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2676)
at
org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2366)
at
org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:356)
at
org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:490)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:408)
at
org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:329)
at
org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:315)
at
org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:291)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:286)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:1256)
at
com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:102)
at
com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java)
at
org.apache.shardingsphere.proxy.backend.connector.jdbc.executor.callback.impl.ProxyStatementExecutorCallback.execute(ProxyStatementExecutorCallback.java:42)
at
org.apache.shardingsphere.proxy.backend.connector.jdbc.executor.callback.ProxyJDBCExecutorCallback.executeSQL(ProxyJDBCExecutorCallback.java:76)
at
org.apache.shardingsphere.proxy.backend.connector.jdbc.executor.callback.ProxyJDBCExecutorCallback.executeSQL(ProxyJDBCExecutorCallback.java:69)
at
org.apache.shardingsphere.proxy.backend.connector.jdbc.executor.callback.ProxyJDBCExecutorCallback.executeSQL(ProxyJDBCExecutorCallback.java:46)
at
org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc.JDBCExecutorCallback.execute(JDBCExecutorCallback.java:86)
at
org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc.JDBCExecutorCallback.execute(JDBCExecutorCallback.java:65)
at
org.apache.shardingsphere.infra.executor.kernel.ExecutorEngine.syncExecute(ExecutorEngine.java:133)
at
org.apache.shardingsphere.infra.executor.kernel.ExecutorEngine.parallelExecute(ExecutorEngine.java:129)
at
org.apache.shardingsphere.infra.executor.kernel.ExecutorEngine.execute(ExecutorEngine.java:114)
at
org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc.JDBCExecutor.execute(JDBCExecutor.java:67)
at
org.apache.shardingsphere.proxy.backend.connector.jdbc.executor.ProxyJDBCExecutor.execute(ProxyJDBCExecutor.java:74)
at
org.apache.shardingsphere.proxy.backend.connector.ProxySQLExecutor.useDriverToExecute(ProxySQLExecutor.java:195)
at
org.apache.shardingsphere.proxy.backend.connector.ProxySQLExecutor.execute(ProxySQLExecutor.java:156)
at
org.apache.shardingsphere.proxy.backend.connector.DatabaseConnector.doExecute(DatabaseConnector.java:263)
at
org.apache.shardingsphere.proxy.backend.connector.DatabaseConnector.doExecute(DatabaseConnector.java:249)
at
org.apache.shardingsphere.proxy.backend.connector.DatabaseConnector.execute(DatabaseConnector.java:209)
at
org.apache.shardingsphere.proxy.frontend.postgresql.command.query.simple.PostgreSQLComQueryExecutor.execute(PostgreSQLComQueryExecutor.java:77)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.doExecuteCommand(CommandExecutorTask.java:114)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:109)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
```
As shown above, the proxy did not route to the correct data source when
querying a single table.
### Example codes for reproduce this issue (such as a github link).
--
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]
