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Posted to dev@phoenix.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2018/03/05 21:37:00 UTC
[jira] [Commented] (PHOENIX-4624) COLLATION_KEY function cannot
handle null values
[ https://issues.apache.org/jira/browse/PHOENIX-4624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16386796#comment-16386796 ]
James Taylor commented on PHOENIX-4624:
---------------------------------------
+1. Thanks for the patch, [~shehzaadn]. I'll get this committed.
> COLLATION_KEY function cannot handle null values
> ------------------------------------------------
>
> Key: PHOENIX-4624
> URL: https://issues.apache.org/jira/browse/PHOENIX-4624
> Project: Phoenix
> Issue Type: Bug
> Reporter: Shehzaad Nakhoda
> Assignee: Shehzaad Nakhoda
> Priority: Major
> Fix For: 4.14.0
>
> Attachments: PHOENIX-4624_v1.patch
>
>
> COLLATION_KEY throws a NullPointerException when it encounters values that are null.
> Example:
> 0: jdbc:phoenix:localhost> create table hello_table (ID DECIMAL PRIMARY KEY, NAME VARCHAR);
> No rows affected (0.323 seconds)
> 0: jdbc:phoenix:localhost> upsert into hello_table VALUES(1, 'One');
> 1 row affected (0.032 seconds)
> 0: jdbc:phoenix:localhost> upsert into hello_table VALUES(2, 'Two');
> 1 row affected (0.006 seconds)
> 0: jdbc:phoenix:localhost> upsert into hello_table VALUES(0, NULL);
> 1 row affected (0.004 seconds)
> 0: jdbc:phoenix:localhost> select * from hello_table order by collation_key(name, 'en_US');
> +------------------------------------------+------------------------------------------+
> | ID | NAME |
> +------------------------------------------+------------------------------------------+
> java.lang.RuntimeException: org.apache.phoenix.exception.PhoenixIOException: org.apache.phoenix.exception.PhoenixIOException: org.apache.hadoop.hbase.DoNotRetryIOException: HELLO_TABLE,,1519258211363.5898d1758d5b82ada5b27b2a8a9fba27.: null
> at org.apache.phoenix.util.ServerUtil.createIOException(ServerUtil.java:96)
> at org.apache.phoenix.util.ServerUtil.throwIOException(ServerUtil.java:62)
> at org.apache.phoenix.iterate.NonAggregateRegionScannerFactory.getTopNScanner(NonAggregateRegionScannerFactory.java:327)
> at org.apache.phoenix.iterate.NonAggregateRegionScannerFactory.getRegionScanner(NonAggregateRegionScannerFactory.java:164)
> at org.apache.phoenix.coprocessor.ScanRegionObserver.doPostScannerOpen(ScanRegionObserver.java:72)
> at org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.overrideDelegate(BaseScannerRegionObserver.java:235)
> at org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.nextRaw(BaseScannerRegionObserver.java:286)
> at org.apache.hadoop.hbase.regionserver.HRegionServer.scan(HRegionServer.java:3361)
> at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32492)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2211)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104)
> at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:108)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.NullPointerException
> at org.apache.phoenix.expression.function.CollationKeyFunction.evaluate(CollationKeyFunction.java:121)
> at org.apache.phoenix.iterate.OrderedResultIterator.getResultIterator(OrderedResultIterator.java:260)
> at org.apache.phoenix.iterate.OrderedResultIterator.next(OrderedResultIterator.java:199)
> at org.apache.phoenix.iterate.NonAggregateRegionScannerFactory.getTopNScanner(NonAggregateRegionScannerFactory.java:322)
> ... 11 more
> at sqlline.IncrementalRows.hasNext(IncrementalRows.java:73)
> at sqlline.TableOutputFormat.print(TableOutputFormat.java:33)
> at sqlline.SqlLine.print(SqlLine.java:1652)
> at sqlline.Commands.execute(Commands.java:833)
> at sqlline.Commands.sql(Commands.java:732)
> at sqlline.SqlLine.dispatch(SqlLine.java:807)
> at sqlline.SqlLine.begin(SqlLine.java:681)
> at sqlline.SqlLine.start(SqlLine.java:398)
> at sqlline.SqlLine.main(SqlLine.java:292)
> 0: jdbc:phoenix:localhost> select name from hello_table group by name order by collation_key(name, 'en_US');
> +------------------------------------------+
> | NAME |
> +------------------------------------------+
> java.lang.NullPointerException
> at org.apache.phoenix.expression.function.CollationKeyFunction.evaluate(CollationKeyFunction.java:121)
> at org.apache.phoenix.iterate.OrderedResultIterator.getResultIterator(OrderedResultIterator.java:260)
> at org.apache.phoenix.iterate.OrderedResultIterator.next(OrderedResultIterator.java:199)
> at org.apache.phoenix.iterate.OrderedAggregatingResultIterator.next(OrderedAggregatingResultIterator.java:51)
> at org.apache.phoenix.jdbc.PhoenixResultSet.next(PhoenixResultSet.java:779)
> at sqlline.IncrementalRows.hasNext(IncrementalRows.java:62)
> at sqlline.TableOutputFormat.print(TableOutputFormat.java:33)
> at sqlline.SqlLine.print(SqlLine.java:1652)
> at sqlline.Commands.execute(Commands.java:833)
> at sqlline.Commands.sql(Commands.java:732)
> at sqlline.SqlLine.dispatch(SqlLine.java:807)
> at sqlline.SqlLine.begin(SqlLine.java:681)
> at sqlline.SqlLine.start(SqlLine.java:398)
> at sqlline.SqlLine.main(SqlLine.java:292)
> 0: jdbc:phoenix:localhost>
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