sl@0: # 2007 May 6
sl@0: #
sl@0: # The author disclaims copyright to this source code.  In place of
sl@0: # a legal notice, here is a blessing:
sl@0: #
sl@0: #    May you do good and not evil.
sl@0: #    May you find forgiveness for yourself and forgive others.
sl@0: #    May you share freely, never taking more than you give.
sl@0: #
sl@0: #***********************************************************************
sl@0: #
sl@0: # $Id: tkt2339.test,v 1.2 2007/09/12 17:01:45 danielk1977 Exp $
sl@0: #
sl@0: 
sl@0: set testdir [file dirname $argv0]
sl@0: source $testdir/tester.tcl
sl@0: 
sl@0: ifcapable !subquery||!compound {
sl@0:   finish_test
sl@0:   return
sl@0: }
sl@0: 
sl@0: do_test tkt2339.1 {
sl@0:   execsql {
sl@0:     create table t1(num int);
sl@0:     insert into t1 values (1);
sl@0:     insert into t1 values (2);
sl@0:     insert into t1 values (3);
sl@0:     insert into t1 values (4);
sl@0:     
sl@0:     create table t2(num int);
sl@0:     insert into t2 values (11);
sl@0:     insert into t2 values (12);
sl@0:     insert into t2 values (13);
sl@0:     insert into t2 values (14);
sl@0:     
sl@0:     SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
sl@0:     UNION
sl@0:     SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
sl@0:   }
sl@0: } {3 4 13 14}
sl@0: do_test tkt2339.2 {
sl@0:   execsql {
sl@0:     SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
sl@0:     UNION ALL
sl@0:     SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
sl@0:   }
sl@0: } {4 3 14 13}
sl@0: do_test tkt2339.3 {
sl@0:   execsql {
sl@0:     SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC)
sl@0:     UNION ALL
sl@0:     SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
sl@0:   }
sl@0: } {4 3 2 1 14 13}
sl@0: do_test tkt2339.4 {
sl@0:   execsql {
sl@0:     SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
sl@0:     UNION ALL
sl@0:     SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
sl@0:   }
sl@0: } {4 3 14 13 12 11}
sl@0: do_test tkt2339.5 {
sl@0:   execsql {
sl@0:     SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
sl@0:     UNION
sl@0:     SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
sl@0:   }
sl@0: } {3 4 11 12 13 14}
sl@0: do_test tkt2339.6 {
sl@0:   execsql {
sl@0:     SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
sl@0:     EXCEPT
sl@0:     SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
sl@0:   }
sl@0: } {3 4}
sl@0: do_test tkt2339.7 {
sl@0:   execsql {
sl@0:     SELECT * FROM (SELECT * FROM t1 LIMIT 2)
sl@0:     UNION
sl@0:     SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
sl@0:   }
sl@0: } {1 2 13 14}
sl@0: do_test tkt2339.8 {
sl@0:   execsql {
sl@0:     SELECT * FROM (SELECT * FROM t1 LIMIT 2)
sl@0:     UNION
sl@0:     SELECT * FROM (SELECT * FROM t2 LIMIT 2)
sl@0:   }
sl@0: } {1 2 11 12}
sl@0: do_test tkt2339.9 {
sl@0:   execsql {
sl@0:     SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
sl@0:     UNION
sl@0:     SELECT * FROM (SELECT * FROM t2 LIMIT 2)
sl@0:   }
sl@0: } {3 4 11 12}
sl@0: 
sl@0: 
sl@0: finish_test