lcxywfe opened a new issue, #18614:
URL: https://github.com/apache/shardingsphere/issues/18614
## Bug Report
### Which version of ShardingSphere did you use?
5.1.3 SNAPSHOT from master
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy
### Expected behavior
### Actual behavior
### Reason analyze (If you can)
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule
configuration, when exception occur etc.
`CREATE TABLE `test_sharding` (`mp` multipolygon DEFAULT NULL) ENGINE=InnoDB
DEFAULT CHARSET=latin1;`
Log
```
[ERROR] 2022-06-26 15:15:22.622 [ShardingSphere-Command-8]
o.a.s.i.m.d.s.l.SchemaMetaDataLoaderEngine - Dialect load table meta data error.
org.apache.shardingsphere.infra.exception.ShardingSphereException:
java.util.concurrent.ExecutionException: java.lang.NullPointerException
at
org.apache.shardingsphere.infra.metadata.database.schema.loader.SchemaMetaDataLoaderEngine.loadByDialect(SchemaMetaDataLoaderEngine.java:100)
at
org.apache.shardingsphere.infra.metadata.database.schema.loader.SchemaMetaDataLoaderEngine.load(SchemaMetaDataLoaderEngine.java:65)
at
org.apache.shardingsphere.infra.metadata.database.schema.builder.GenericSchemaBuilder.loadSchemas(GenericSchemaBuilder.java:93)
at
org.apache.shardingsphere.infra.metadata.database.schema.builder.GenericSchemaBuilder.build(GenericSchemaBuilder.java:76)
at
org.apache.shardingsphere.infra.context.refresher.type.CreateTableStatementSchemaRefresher.refresh(CreateTableStatementSchemaRefresher.java:60)
at
org.apache.shardingsphere.infra.context.refresher.type.CreateTableStatementSchemaRefresher.refresh(CreateTableStatementSchemaRefresher.java:45)
at
org.apache.shardingsphere.infra.context.refresher.MetaDataRefreshEngine.refresh(MetaDataRefreshEngine.java:74)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.refreshMetaData(DatabaseCommunicationEngine.java:108)
at
org.apache.shardingsphere.proxy.backend.communication.jdbc.JDBCDatabaseCommunicationEngine.execute(JDBCDatabaseCommunicationEngine.java:139)
at
org.apache.shardingsphere.proxy.backend.communication.jdbc.JDBCDatabaseCommunicationEngine.execute(JDBCDatabaseCommunicationEngine.java:71)
at
org.apache.shardingsphere.proxy.backend.text.data.impl.SchemaAssignedDatabaseBackendHandler.execute(SchemaAssignedDatabaseBackendHandler.java:63)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:99)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:108)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:78)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.util.concurrent.ExecutionException:
java.lang.NullPointerException
at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
at
org.apache.shardingsphere.infra.metadata.database.schema.loader.SchemaMetaDataLoaderEngine.loadByDialect(SchemaMetaDataLoaderEngine.java:94)
... 16 common frames omitted
Caused by: java.lang.NullPointerException: null
at
org.apache.shardingsphere.infra.metadata.database.schema.loader.dialect.MySQLSchemaMetaDataLoader.loadColumnMetaData(MySQLSchemaMetaDataLoader.java:137)
at
org.apache.shardingsphere.infra.metadata.database.schema.loader.dialect.MySQLSchemaMetaDataLoader.loadColumnMetaDataMap(MySQLSchemaMetaDataLoader.java:113)
at
org.apache.shardingsphere.infra.metadata.database.schema.loader.dialect.MySQLSchemaMetaDataLoader.load(MySQLSchemaMetaDataLoader.java:66)
at
org.apache.shardingsphere.infra.metadata.database.schema.loader.SchemaMetaDataLoaderEngine.lambda$loadByDialect$0(SchemaMetaDataLoaderEngine.java:90)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
... 3 common frames omitted
```
### Example codes for reproduce this issue (such as a github link).
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