[GitHub] [shardingsphere] DreamerBear opened a new issue #5467: NPE when select * from table

[GitBox <gi...@apache.org>]

DreamerBear opened a new issue #5467:
URL: https://github.com/apache/shardingsphere/issues/5467


   ### Which version of ShardingSphere did you use?
   4.0.0
   ### Which project did you use? Sharding-JDBC or Sharding-Proxy?
   Sharding-JDBC
   ### Expected behavior
   return expected metaData and resultSet
   ### Actual behavior
   org.apache.shardingsphere.core.exception.ShardingException: java.util.concurrent.ExecutionException: java.lang.NullPointerException
           at org.apache.shardingsphere.core.execute.engine.ShardingExecuteEngine.throwException(ShardingExecuteEngine.java:144)
           at org.apache.shardingsphere.core.execute.engine.ShardingExecuteEngine.getGroupResults(ShardingExecuteEngine.java:134)
           at org.apache.shardingsphere.core.execute.engine.ShardingExecuteEngine.parallelExecute(ShardingExecuteEngine.java:102)
           at org.apache.shardingsphere.core.execute.engine.ShardingExecuteEngine.groupExecute(ShardingExecuteEngine.java:83)
           at org.apache.shardingsphere.core.execute.sql.execute.SQLExecuteTemplate.executeGroup(SQLExecuteTemplate.java:73)
           at org.apache.shardingsphere.core.execute.sql.execute.SQLExecuteTemplate.executeGroup(SQLExecuteTemplate.java:56)
           at org.apache.shardingsphere.shardingjdbc.executor.AbstractStatementExecutor.executeCallback(AbstractStatementExecutor.java:140)
           at org.apache.shardingsphere.shardingjdbc.executor.PreparedStatementExecutor.executeQuery(PreparedStatementExecutor.java:109)
           at org.apache.shardingsphere.shardingjdbc.jdbc.core.statement.ShardingPreparedStatement.executeQuery(ShardingPreparedStatement.java:123)
   ### Reason analyze (If you can)
   execute select * from table
   when user define a unsigned bigint default null column in a table and set null to this column in a row
   
   the stack trace is 
   java.lang.NullPointerException
           at org.apache.shardingsphere.core.execute.sql.execute.result.MemoryQueryResult.getRowValue(MemoryQueryResult.java:88)
           at org.apache.shardingsphere.core.execute.sql.execute.result.MemoryQueryResult.getRows(MemoryQueryResult.java:63)
           at org.apache.shardingsphere.core.execute.sql.execute.result.MemoryQueryResult.<init>(MemoryQueryResult.java:55)
           at org.apache.shardingsphere.shardingjdbc.executor.PreparedStatementExecutor.getQueryResult(PreparedStatementExecutor.java:116)
           at org.apache.shardingsphere.shardingjdbc.executor.PreparedStatementExecutor.access$200(PreparedStatementExecutor.java:50)
   ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.
   
   the source code `resultSet.getBigDecimal(columnIndex).toBigInteger();`  may cause NPE
   ### Example codes for reproduce this issue (such as a github link).
   


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