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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/12/26 08:33:20 UTC
[GitHub] [shardingsphere] TeslaCN opened a new issue, #23102: java.lang.NullPointerException occurred when PostgreSQL describing insert returning composite type
TeslaCN opened a new issue, #23102:
URL: https://github.com/apache/shardingsphere/issues/23102
## Bug Report
### Which version of ShardingSphere did you use?
master - 440536943ccad254425c25aadb1b491ffd9d1670
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy PostgreSQL
### Expected behavior
No error occurred.
### Actual behavior
Client:
```
Exception in thread "main" org.postgresql.util.PSQLException: ERROR: java.lang.NullPointerException
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2675)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2365)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:355)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:315)
at org.postgresql.jdbc.PgPreparedStatement.getMetaData(PgPreparedStatement.java:1108)
```
Proxy:
```
[ERROR] 2022-12-26 16:27:41.316 [Connection-1-ThreadExecutor] o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.base/java.util.Objects.requireNonNull(Objects.java:208)
at org.apache.shardingsphere.proxy.frontend.postgresql.command.query.extended.describe.PostgreSQLComDescribeExecutor.describeReturning(PostgreSQLComDescribeExecutor.java:201)
at org.apache.shardingsphere.proxy.frontend.postgresql.command.query.extended.describe.PostgreSQLComDescribeExecutor.lambda$describeInsertStatementByDatabaseMetaData$0(PostgreSQLComDescribeExecutor.java:139)
at java.base/java.util.Optional.map(Optional.java:260)
at org.apache.shardingsphere.proxy.frontend.postgresql.command.query.extended.describe.PostgreSQLComDescribeExecutor.describeInsertStatementByDatabaseMetaData(PostgreSQLComDescribeExecutor.java:139)
at org.apache.shardingsphere.proxy.frontend.postgresql.command.query.extended.describe.PostgreSQLComDescribeExecutor.tryDescribePreparedStatement(PostgreSQLComDescribeExecutor.java:121)
at org.apache.shardingsphere.proxy.frontend.postgresql.command.query.extended.describe.PostgreSQLComDescribeExecutor.describePreparedStatement(PostgreSQLComDescribeExecutor.java:113)
at org.apache.shardingsphere.proxy.frontend.postgresql.command.query.extended.describe.PostgreSQLComDescribeExecutor.execute(PostgreSQLComDescribeExecutor.java:97)
at org.apache.shardingsphere.proxy.frontend.postgresql.command.query.extended.PostgreSQLAggregatedCommandExecutor.execute(PostgreSQLAggregatedCommandExecutor.java:41)
at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
```
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.
No rule configured in logic database.
```sql
create table t (id int, val varchar);
```
### Example codes for reproduce this issue (such as a github link).
```java
PreparedStatement preparedStatement = connection.prepareStatement("insert into t (val) values ('') returning t");
ResultSetMetaData metaData = preparedStatement.getMetaData();
metaData.getColumnLabel(1);
```
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[GitHub] [shardingsphere] taojintianxia closed issue #23102: java.lang.NullPointerException occurred when PostgreSQL describing insert returning composite type
Posted by GitBox <gi...@apache.org>.
taojintianxia closed issue #23102: java.lang.NullPointerException occurred when PostgreSQL describing insert returning composite type
URL: https://github.com/apache/shardingsphere/issues/23102
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