# 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