yexufeijun opened a new issue #4006: Execute insert SQL error，columnNames size is 0,java.util.NoSuchElementException URL: https://github.com/apache/incubator-shardingsphere/issues/4006 demo: https://github.com/yexufeijun/sharding-jdbc-test-demo.git error msg: ### Error updating database. Cause: java.util.NoSuchElementException ### The error may exist in com/example/sharding/mapper/TestShardingAMapper.java (best guess) ### The error may involve com.example.sharding.mapper.TestShardingAMapper.insert-Inline ### The error occurred while setting parameters ### SQL: INSERT INTO TEST_SHARDING_A ( id, sd_name ) VALUES ( ?, ? ) ### Cause: java.util.NoSuchElementException at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:199) at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:184) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:426) ... 69 more Caused by: java.util.NoSuchElementException at java.util.Collections$EmptyIterator.next(Collections.java:4189) at org.apache.shardingsphere.core.route.router.sharding.condition.engine.InsertClauseShardingConditionEngine.createShardingCondition(InsertClauseShardingConditionEngine.java:85) at org.apache.shardingsphere.core.route.router.sharding.condition.engine.InsertClauseShardingConditionEngine.createShardingConditions(InsertClauseShardingConditionEngine.java:64) at org.apache.shardingsphere.core.route.router.sharding.ShardingRouter.getShardingConditions(ShardingRouter.java:129) at org.apache.shardingsphere.core.route.router.sharding.ShardingRouter.route(ShardingRouter.java:106) at org.apache.shardingsphere.core.route.PreparedStatementRoutingEngine.route(PreparedStatementRoutingEngine.java:63) at org.apache.shardingsphere.core.PreparedQueryShardingEngine.route(PreparedQueryShardingEngine.java:59) at org.apache.shardingsphere.core.BaseShardingEngine.executeRoute(BaseShardingEngine.java:85) at org.apache.shardingsphere.core.BaseShardingEngine.shard(BaseShardingEngine.java:68) at org.apache.shardingsphere.shardingjdbc.jdbc.core.statement.ShardingPreparedStatement.shard(ShardingPreparedStatement.java:249) at org.apache.shardingsphere.shardingjdbc.jdbc.core.statement.ShardingPreparedStatement.execute(ShardingPreparedStatement.java:190) at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:47) at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63) at com.sun.proxy.$Proxy90.update(Unknown Source) at com.baomidou.mybatisplus.core.executor.MybatisSimpleExecutor.doUpdate(MybatisSimpleExecutor.java:54) at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) at com.baomidou.mybatisplus.core.executor.MybatisCachingExecutor.update(MybatisCachingExecutor.java:83) at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:197)
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