1: # 2008 February 15
2: #
3: # The author disclaims copyright to this source code. In place of
4: # a legal notice, here is a blessing:
5: #
6: # May you do good and not evil.
7: # May you find forgiveness for yourself and forgive others.
8: # May you share freely, never taking more than you give.
9: #
10: #***********************************************************************
11: #
12: # Ticket #2942.
13: #
14: # Queries of the form:
15: #
16: # SELECT group_concat(x) FROM (SELECT * FROM table ORDER BY 1);
17: #
18: # The ORDER BY would be dropped by the query flattener. This used
19: # to not matter because aggregate functions sum(), min(), max(), avg(),
20: # and so forth give the same result regardless of the order of inputs.
21: # But with the addition of the group_concat() function, suddenly the
22: # order does matter.
23: #
24: # $Id: tkt2942.test,v 1.1.1.1 2012/02/21 17:04:16 misho Exp $
25: #
26:
27: set testdir [file dirname $argv0]
28: source $testdir/tester.tcl
29:
30: ifcapable !subquery {
31: finish_test
32: return
33: }
34:
35: do_test tkt2942.1 {
36: execsql {
37: create table t1(num int);
38: insert into t1 values (2);
39: insert into t1 values (1);
40: insert into t1 values (3);
41: insert into t1 values (4);
42: SELECT group_concat(num) FROM (SELECT num FROM t1 ORDER BY num DESC);
43: }
44: } {4,3,2,1}
45: do_test tkt2942.2 {
46: execsql {
47: SELECT group_concat(num) FROM (SELECT num FROM t1 ORDER BY num);
48: }
49: } {1,2,3,4}
50: do_test tkt2942.3 {
51: execsql {
52: SELECT group_concat(num) FROM (SELECT num FROM t1);
53: }
54: } {2,1,3,4}
55: do_test tkt2942.4 {
56: execsql {
57: SELECT group_concat(num) FROM (SELECT num FROM t1 ORDER BY rowid DESC);
58: }
59: } {4,3,1,2}
60:
61:
62: finish_test
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