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1 # 2012 Sept 27 | |
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 # This file implements regression tests for SQLite library. The | |
12 # focus of this file is testing that the optimizations that disable | |
13 # ORDER BY clauses when the natural order of a query is correct. | |
14 # | |
15 | |
16 | |
17 set testdir [file dirname $argv0] | |
18 source $testdir/tester.tcl | |
19 set ::testprefix orderby2 | |
20 | |
21 # Generate test data for a join. Verify that the join gets the | |
22 # correct answer. | |
23 # | |
24 do_test 1.0 { | |
25 db eval { | |
26 CREATE TABLE t1(a INTEGER PRIMARY KEY, b); | |
27 INSERT INTO t1 VALUES(1,11), (2,22); | |
28 CREATE TABLE t2(d, e, UNIQUE(d,e)); | |
29 INSERT INTO t2 VALUES(10, 'ten'), (11,'eleven'), (12,'twelve'), | |
30 (11, 'oneteen'); | |
31 } | |
32 } {} | |
33 | |
34 do_test 1.1a { | |
35 db eval { | |
36 SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY d, e; | |
37 } | |
38 } {eleven oneteen} | |
39 do_test 1.1b { | |
40 db eval { | |
41 EXPLAIN QUERY PLAN | |
42 SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY d, e; | |
43 } | |
44 } {~/ORDER BY/} | |
45 | |
46 do_test 1.2a { | |
47 db eval { | |
48 SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY e; | |
49 } | |
50 } {eleven oneteen} | |
51 do_test 1.2b { | |
52 db eval { | |
53 EXPLAIN QUERY PLAN | |
54 SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY e; | |
55 } | |
56 } {~/ORDER BY/} | |
57 | |
58 do_test 1.3a { | |
59 db eval { | |
60 SELECT e, b FROM t1, t2 WHERE a=1 ORDER BY d, e; | |
61 } | |
62 } {ten 11 eleven 11 oneteen 11 twelve 11} | |
63 do_test 1.3b { | |
64 db eval { | |
65 EXPLAIN QUERY PLAN | |
66 SELECT e, b FROM t1, t2 WHERE a=1 ORDER BY d, e; | |
67 } | |
68 } {~/ORDER BY/} | |
69 | |
70 # The following tests derived from TH3 test module cov1/where34.test | |
71 # | |
72 do_test 2.0 { | |
73 db eval { | |
74 CREATE TABLE t31(a,b); CREATE INDEX t31ab ON t31(a,b); | |
75 CREATE TABLE t32(c,d); CREATE INDEX t32cd ON t32(c,d); | |
76 CREATE TABLE t33(e,f); CREATE INDEX t33ef ON t33(e,f); | |
77 CREATE TABLE t34(g,h); CREATE INDEX t34gh ON t34(g,h); | |
78 | |
79 INSERT INTO t31 VALUES(1,4), (2,3), (1,3); | |
80 INSERT INTO t32 VALUES(4,5), (3,6), (3,7), (4,8); | |
81 INSERT INTO t33 VALUES(5,9), (7,10), (6,11), (8,12), (8,13), (7,14); | |
82 INSERT INTO t34 VALUES(11,20), (10,21), (12,22), (9,23), (13,24), | |
83 (14,25), (12,26); | |
84 SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34 | |
85 WHERE c=b AND e=d AND g=f | |
86 ORDER BY a ASC, c ASC, e DESC, g ASC; | |
87 } | |
88 } {1,3,7,10 1,3,7,14 1,3,6,11 1,4,8,12 1,4,8,12 1,4,8,13 1,4,5,9 2,3,7,10 2,3,7,
14 2,3,6,11} | |
89 do_test 2.1 { | |
90 db eval { | |
91 SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34 | |
92 WHERE c=b AND e=d AND g=f | |
93 ORDER BY +a ASC, +c ASC, +e DESC, +g ASC; | |
94 } | |
95 } {1,3,7,10 1,3,7,14 1,3,6,11 1,4,8,12 1,4,8,12 1,4,8,13 1,4,5,9 2,3,7,10 2,3,7,
14 2,3,6,11} | |
96 do_test 2.2 { | |
97 db eval { | |
98 SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34 | |
99 WHERE c=b AND e=d AND g=f | |
100 ORDER BY a ASC, c ASC, e ASC, g ASC; | |
101 } | |
102 } {1,3,6,11 1,3,7,10 1,3,7,14 1,4,5,9 1,4,8,12 1,4,8,12 1,4,8,13 2,3,6,11 2,3,7,
10 2,3,7,14} | |
103 do_test 2.3 { | |
104 optimization_control db cover-idx-scan off | |
105 db cache flush | |
106 db eval { | |
107 SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34 | |
108 WHERE c=b AND e=d AND g=f | |
109 ORDER BY a ASC, c ASC, e ASC, g ASC; | |
110 } | |
111 } {1,3,6,11 1,3,7,10 1,3,7,14 1,4,5,9 1,4,8,12 1,4,8,12 1,4,8,13 2,3,6,11 2,3,7,
10 2,3,7,14} | |
112 optimization_control db all on | |
113 db cache flush | |
114 | |
115 | |
116 | |
117 finish_test | |
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