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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/11/22 09:50:05 UTC

[GitHub] [shardingsphere] TeslaCN opened a new issue, #22341: Table cannot be prefixed with pg_ in ShardingSphere-Proxy PostgreSQL/openGauss

TeslaCN opened a new issue, #22341:
URL: https://github.com/apache/shardingsphere/issues/22341

   ## Bug Report
   
   ### Which version of ShardingSphere did you use?
   
   d9798c3c6480ab5434c65b0e726aca72830d140d
   
   This issue is caused by #13692. So this impact ShardingSphere-Proxy >= 5.1.0
   
   ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
   
   ShardingSphere-Proxy PostgreSQL/openGauss
   
   ### Expected behavior
   
   DML operations without error.
   
   ### Actual behavior
   
   ```
   postgres=> create table pg_mytable ();
   CREATE TABLE
   postgres=> select * from pg_mytable;
   ERROR:  relation "pg_mytable" does not exist
   LINE 1: select * from pg_mytable;
                         ^
   ```
   
   ```
   [INFO ] 2022-11-22 17:44:46.210 [Connection-2-ThreadExecutor] o.a.s.p.b.h.a.e.AbstractDatabaseMetadataExecutor$DefaultDatabaseMetadataExecutor - Actual SQL: ds_0 ::: select * from pg_mytable;
   [ERROR] 2022-11-22 17:44:46.225 [Connection-2-ThreadExecutor] o.a.s.p.f.c.CommandExecutorTask - Exception occur: 
   org.postgresql.util.PSQLException: ERROR: relation "pg_mytable" does not exist
     Position: 15
   	at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2676)
   	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2366)
   	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:356)
   	at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:490)
   	at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:408)
   	at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:181)
   	at org.postgresql.jdbc.PgPreparedStatement.executeQuery(PgPreparedStatement.java:133)
   	at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)
   	at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)
   	at org.apache.shardingsphere.proxy.backend.handler.admin.executor.AbstractDatabaseMetadataExecutor$DefaultDatabaseMetadataExecutor.getSourceData(AbstractDatabaseMetadataExecutor.java:216)
   	at org.apache.shardingsphere.proxy.backend.handler.admin.executor.AbstractDatabaseMetadataExecutor.execute(AbstractDatabaseMetadataExecutor.java:76)
   	at org.apache.shardingsphere.proxy.backend.handler.admin.DatabaseAdminQueryBackendHandler.execute(DatabaseAdminQueryBackendHandler.java:56)
   	at org.apache.shardingsphere.proxy.frontend.postgresql.command.query.simple.PostgreSQLComQueryExecutor.execute(PostgreSQLComQueryExecutor.java:76)
   	at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:111)
   	at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:78)
   	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
   	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
   	at java.base/java.lang.Thread.run(Thread.java:833)
   ```
   


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[GitHub] [shardingsphere] tuichenchuxin commented on issue #22341: Table cannot be prefixed with pg_ in ShardingSphere-Proxy PostgreSQL/openGauss

Posted by GitBox <gi...@apache.org>.
tuichenchuxin commented on issue #22341:
URL: https://github.com/apache/shardingsphere/issues/22341#issuecomment-1324414918

   Yes, it should be solved by simulating the table, the empty table is easy to simulate, but the data collection and simulation need some additional development


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[GitHub] [shardingsphere] TeslaCN commented on issue #22341: Table cannot be prefixed with pg_ in ShardingSphere-Proxy PostgreSQL/openGauss

Posted by GitBox <gi...@apache.org>.
TeslaCN commented on issue #22341:
URL: https://github.com/apache/shardingsphere/issues/22341#issuecomment-1323426116

   Hi @tuichenchuxin 
   Maybe what you have done recently could fix this issue?


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