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Posted to dev@phoenix.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2014/08/09 03:32:11 UTC
[jira] [Resolved] (PHOENIX-1064) Change default of ORDER BY so that
nulls sort last
[ https://issues.apache.org/jira/browse/PHOENIX-1064?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
James Taylor resolved PHOENIX-1064.
-----------------------------------
Resolution: Not a Problem
This WAD. Please reopen a feature request to support both if you feel strongly.
> Change default of ORDER BY so that nulls sort last
> --------------------------------------------------
>
> Key: PHOENIX-1064
> URL: https://issues.apache.org/jira/browse/PHOENIX-1064
> Project: Phoenix
> Issue Type: New Feature
> Reporter: jay wong
> Fix For: 5.0.0
>
> Attachments: PHOENIX-1064.patch
>
>
> 1. jdbc:phoenix:ip:/hbase-phoenix-l> select * from testorder;
> | PK1 | COL1 | COL2 |
> | row1 | 2 | 3 |
> | row2 | 3 | 4 |
> | row3 | 4 | 5 |
> | row4 | 5 | null |
> | row5 | 5 | null |
> 2.jdbc:phoenix:ip:/hbase-phoenix-l> select * from testorder order by col2;
> | PK1 | COL1 | COL2 |
> | row4 | 5 | null |
> | row5 | 5 | null |
> | row1 | 2 | 3 |
> | row2 | 3 | 4 |
> | row3 | 4 | 5 |
> 3. jdbc:phoenix:ip:/hbase-phoenix-l> select * from testorder order by col2 desc;
> | PK1 | COL1 | COL2 |
> | row4 | 5 | null |
> | row5 | 5 | null |
> | row3 | 4 | 5 |
> | row2 | 3 | 4 |
> | row1 | 2 | 3 |
> I think it will be at last when the column is null as default
> As mysql or oracle DB is at last.
> It is More in line with normal logic of thinking.
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