# 2001 September 15

 #

 # The author disclaims copyright to this source code.  In place of

 # a legal notice, here is a blessing:

 #

 #    May you do good and not evil.

 #    May you find forgiveness for yourself and forgive others.

 #    May you share freely, never taking more than you give.

 #

 #***********************************************************************

 # This file implements regression tests for SQLite library. 

 #

 # The focus of this file is testing that LIMIT and OFFSET work for

 # unusual combinations SELECT statements.

 #

 # $Id: select8.test,v 1.1 2008/01/12 12:48:09 drh Exp $

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 execsql {

   CREATE TABLE songs(songid, artist, timesplayed);

   INSERT INTO songs VALUES(1,'one',1);

   INSERT INTO songs VALUES(2,'one',2);

   INSERT INTO songs VALUES(3,'two',3);

   INSERT INTO songs VALUES(4,'three',5);

   INSERT INTO songs VALUES(5,'one',7);

   INSERT INTO songs VALUES(6,'two',11);

 }

 set result [execsql {

   SELECT DISTINCT artist,sum(timesplayed) AS total      

   FROM songs      

   GROUP BY LOWER(artist)      

 }]

 puts result=$result

 do_test select8-1.1 {

   execsql {

     SELECT DISTINCT artist,sum(timesplayed) AS total      

     FROM songs      

     GROUP BY LOWER(artist)      

     LIMIT 1 OFFSET 1

   }

 } [lrange $result 2 3]

 do_test select8-1.2 {

   execsql {

     SELECT DISTINCT artist,sum(timesplayed) AS total      

     FROM songs      

     GROUP BY LOWER(artist)      

     LIMIT 2 OFFSET 1

   }

 } [lrange $result 2 5]

 do_test select8-1.3 {

   execsql {

     SELECT DISTINCT artist,sum(timesplayed) AS total      

     FROM songs      

     GROUP BY LOWER(artist)      

     LIMIT -1 OFFSET 2

   }

 } [lrange $result 4 end]

 finish_test