As does MS SQL 2008 R2
DROP TABLE #Test
CREATE TABLE #Test ( Val int )
INSERT INTO [#Test] ([Val]) VALUES (-2), (2)
SELECT Val FROM #Test GROUP BY Val
SELECT ABS(Val) AS Val FROM #Test GROUP BY Val
Val
---
-2
2
Val
---
2
2
Your requested test case:
Untitled1 m
--------- -
1 x
1 y
1 z
Untitled1 m
--------- -
2 z
2 y
2 x
(I used the following code)
CREATE TABLE #t1(m VARCHAR(4));
INSERT INTO #t1 VALUES('az');
INSERT INTO #t1 VALUES('by');
INSERT INTO #t1 VALUES('cx');
SELECT '1', right(m,1) AS m
FROM #t1
ORDER BY m;
SELECT '2', right(m,1) AS m
FROM #t1
ORDER BY lower(m);
-----Original Message-----
From: sqlite-users-boun...@sqlite.org [mailto:sqlite-users-boun...@sqlite.org]
On Behalf Of Dominique Devienne
Sent: Wednesday, August 14, 2013 2:00 PM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] name resolutionn in GROUP BY
On Wed, Aug 14, 2013 at 6:59 PM, Richard Hipp <d...@sqlite.org> wrote:
> On Wed, Aug 14, 2013 at 12:22 PM, Rob Golsteijn
> <rob.golste...@mapscape.eu>wrote:
>
> > create table test(name);
> > insert into test values (NULL);
> > insert into test values ('abc');
> >
> > select count(),
> > NULLIF(name,'abc') AS name
> > from test
> > group by lower(name);
> >
>
> So the question is, should the "name" symbol in the GROUP BY clause
> refer to the original column name in the TEST table, or should it
> refer to the result column called "name". SQLite version 3.7.15 picks
> the TEST table column. Version 3.7.17 picks the result column.
>
> Anybody know which is correct?
>
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - ...
SQL> create table test (name varchar2(64));
Table created.
SQL> insert into test values (NULL);
1 row created.
SQL> insert into test values ('abc');
1 row created.
SQL> select count(*), max(nullif(name, 'abc')) as name from test group
SQL> by
lower(name);
COUNT(*) NAME
---------- ----------------------------------------------------------------
1
1
SQL> select count(*), nullif(lower(name), 'abc') as name from test group by
lower(name);
COUNT(*) NAME
---------- ----------------------------------------------------------------
1
1
Not authoritative of course, but Oracle seems to agree with the previous
behavior. --DD _______________________________________________
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