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#
#***********************************************************************
#
# This file is to test that the issues surrounding expressions in
# ORDER BY clauses on compound SELECT statements raised by ticket
# #2822 have been dealt with.
#
# $Id: tkt2822.test,v 1.1 2007/12/10 18:51:48 danielk1977 Exp $
# $Id: tkt2822.test,v 1.2 2007/12/12 04:38:27 danielk1977 Exp $
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Test plan:
#
# tkt2820-1.* - Simple identifier as ORDER BY expression.
# tkt2820-2.* - More complex ORDER BY expressions.
# tkt2822-1.* - Simple identifier as ORDER BY expression.
# tkt2822-2.* - More complex ORDER BY expressions.
do_test tkt2820-1.1 {
do_test tkt2822-1.1 {
execsql {
CREATE TABLE t1(a, b, c);
CREATE TABLE t2(c, b, a);
INSERT INTO t1 VALUES(1, 2, 3);
INSERT INTO t2 VALUES(3, 2, 1);
}
} {}
# If an ORDER BY expression matches two different columns, it is an error.
#
do_test tkt2820-1.2 {
do_test tkt2822-1.2 {
catchsql {
SELECT a, b FROM t1 UNION ALL SELECT b, a FROM t2 ORDER BY a;
}
} {1 {ORDER BY term number 1 is ambiguous}}
do_test tkt2820-1.3 {
do_test tkt2822-1.3 {
catchsql {
SELECT a, b, c FROM t2 UNION ALL SELECT c, b, a FROM t1 ORDER BY a;
}
} {1 {ORDER BY term number 1 is ambiguous}}
# But not if it matches the same column in two or more of the
# compounded SELECT statements.
#
do_test tkt2820-1.4 {
do_test tkt2822-1.4 {
execsql {
SELECT a, b, c FROM t2 UNION ALL SELECT a, b, c FROM t1 ORDER BY a;
}
} {1 2 3 1 2 3}
do_test tkt2820-1.5 {
do_test tkt2822-1.5 {
execsql {
SELECT a, b FROM t2 UNION ALL SELECT c, b FROM t1 ORDER BY c;
}
} {1 2 3 2}
# If a match cannot be found in any SELECT, return an error.
#
do_test tkt2820-1.6 {
do_test tkt2822-1.6 {
catchsql {
SELECT * FROM t2 UNION ALL SELECT * FROM t1 ORDER BY d;
}
} {1 {ORDER BY term number 1 does not match any result column}}
do_test tkt2820-2.1 {
do_test tkt2822-2.1 {
execsql {
SELECT a+1, b+1 FROM t1 UNION ALL SELECT a, c FROM t2 ORDER BY a+1;
}
} {1 3 2 3}
do_test tkt2820-2.2 {
do_test tkt2822-2.2 {
catchsql {
SELECT a+1, b+1 FROM t1 UNION ALL SELECT a, c FROM t2 ORDER BY a+2;
}
} {1 {ORDER BY term number 1 does not match any result column}}
do_test tkt2820-2.3 {
do_test tkt2822-2.3 {
catchsql {
SELECT a+1, b+1 FROM t1 UNION ALL SELECT c, a+1 FROM t2 ORDER BY a+1;
}
} {1 {ORDER BY term number 1 is ambiguous}}
do_test tkt2820-2.4 {
do_test tkt2822-2.4 {
execsql {
SELECT t1.a, b+1 FROM t1 UNION ALL SELECT c, a+1 FROM t2 ORDER BY a;
}
} {1 3 3 2}
do_test tkt2820-2.5 {
do_test tkt2822-2.5 {
execsql {
SELECT t1.a, b+1 FROM t1 UNION ALL SELECT c, a+1 FROM t2 ORDER BY t1.a;
}
} {1 3 3 2}
finish_test
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