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Side by Side Diff: third_party/sqlite/src/test/tkt-b75a9ca6b0.test

Issue 949043002: Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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1 # 2014-04-21
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 # Test that ticket [b75a9ca6b0] has been fixed.
13 #
14 # Ticket [b75a9ca6b0] concerns queries that have both a GROUP BY
15 # and an ORDER BY. This code verifies that SQLite is able to
16 # optimize out the ORDER BY in some circumstances, but retains the
17 # ORDER BY when necessary.
18 #
19
20 set testdir [file dirname $argv0]
21 source $testdir/tester.tcl
22 set testprefix tkt-b75a9ca6b0
23
24 do_execsql_test 1 {
25 CREATE TABLE t1 (x, y);
26 INSERT INTO t1 VALUES (1, 3);
27 INSERT INTO t1 VALUES (2, 2);
28 INSERT INTO t1 VALUES (3, 1);
29 }
30
31 do_execsql_test 1.1 {
32 CREATE INDEX i1 ON t1(x, y);
33 }
34
35 set idxscan {0 0 0 {SCAN TABLE t1 USING COVERING INDEX i1}}
36 set tblscan {0 0 0 {SCAN TABLE t1}}
37 set grpsort {0 0 0 {USE TEMP B-TREE FOR GROUP BY}}
38 set sort {0 0 0 {USE TEMP B-TREE FOR ORDER BY}}
39
40 foreach {tn q res eqp} [subst -nocommands {
41 1 "SELECT * FROM t1 GROUP BY x, y ORDER BY x,y"
42 {1 3 2 2 3 1} {$idxscan}
43
44 2 "SELECT * FROM t1 GROUP BY x, y ORDER BY x"
45 {1 3 2 2 3 1} {$idxscan $sort}
46
47 3 "SELECT * FROM t1 GROUP BY y, x ORDER BY y, x"
48 {3 1 2 2 1 3} {$idxscan $sort}
49
50 4 "SELECT * FROM t1 GROUP BY x ORDER BY x"
51 {1 3 2 2 3 1} {$idxscan}
52
53 5 "SELECT * FROM t1 GROUP BY y ORDER BY y"
54 {3 1 2 2 1 3} {$tblscan $grpsort}
55
56 6 "SELECT * FROM t1 GROUP BY y ORDER BY x"
57 {1 3 2 2 3 1} {$tblscan $grpsort $sort}
58
59 7 "SELECT * FROM t1 GROUP BY x, y ORDER BY x, y DESC"
60 {1 3 2 2 3 1} {$idxscan $sort}
61
62 8 "SELECT * FROM t1 GROUP BY x, y ORDER BY x DESC, y DESC"
63 {3 1 2 2 1 3} {$idxscan $sort}
64
65 9 "SELECT * FROM t1 GROUP BY x, y ORDER BY x ASC, y ASC"
66 {1 3 2 2 3 1} {$idxscan}
67
68 10 "SELECT * FROM t1 GROUP BY x, y ORDER BY x COLLATE nocase, y"
69 {1 3 2 2 3 1} {$idxscan $sort}
70
71 }] {
72 do_execsql_test 1.$tn.1 $q $res
73 do_eqp_test 1.$tn.2 $q $eqp
74 }
75
76
77 finish_test
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