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From "Manish Khettry (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3231) Sorting on COUNT with OR and GROUP BY delivers wrong results.
Date Wed, 05 Dec 2007 06:47:43 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548551
] 

Manish Khettry commented on DERBY-3231:
---------------------------------------

Interestingly if you leave out the where clause, the query works just fine.

ij> select b, count(*) from yy  group by b order by count(*) asc;
B                     |2
----------------------------------
4.0                   |1
7.0                   |2
3.0                   |4



> Sorting on COUNT with OR and GROUP BY delivers wrong results.
> -------------------------------------------------------------
>
>                 Key: DERBY-3231
>                 URL: https://issues.apache.org/jira/browse/DERBY-3231
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.3.1.4
>         Environment: Eclipse 3.2.2; java 1.5.0_11; 
>            Reporter: Peter Balon
>            Assignee: Manish Khettry
>            Priority: Critical
>
> The result of the select is not sorted in "order by COUNT(*) DESC" or "order by COUNT(*)
ASC" 
> create table yy (a double, b double);
> insert into yy values (2, 4);
> insert into yy values (5, 7);
> insert into yy values (2, 3);
> insert into yy values (2, 3);
> insert into yy values (2, 3);
> insert into yy values (2, 3);
> insert into yy values (9, 7);
> select b, COUNT(*) AS "COUNT_OF", SUM(b) AS "sum b" 
> from yy
> where a = 5 or a = 2
> group by b
> order by COUNT(*) asc
> -- same result as:
> select b, COUNT(*) AS "COUNT_OF", SUM(b) AS "sum b" 
> from yy
> where a = 5 or a = 2
> group by b
> order by COUNT(*) desc

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