wasCSharpSQLite – Blame information for rev 1

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1 office 1 # 2007 June 8
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 terms in the ON clause of
13 # a LEFT OUTER JOIN are not used with indices. See ticket #3015.
14 #
15 # $Id: where6.test,v 1.2 2008/04/17 19:14:02 drh Exp $
16  
17 set testdir [file dirname $argv0]
18 source $testdir/tester.tcl
19  
20 # Build some test data
21 #
22 do_test where6-1.1 {
23 execsql {
24 CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c);
25 INSERT INTO t1 VALUES(1,3,1);
26 INSERT INTO t1 VALUES(2,4,2);
27 CREATE TABLE t2(x INTEGER PRIMARY KEY);
28 INSERT INTO t2 VALUES(3);
29  
30 SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1;
31 }
32 } {1 3 1 3 2 4 2 {}}
33 do_test where6-1.2 {
34 execsql {
35 SELECT * FROM t1 LEFT JOIN t2 ON x=b AND c=1;
36 }
37 } {1 3 1 3 2 4 2 {}}
38 do_test where6-1.3 {
39 execsql {
40 SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c;
41 }
42 } {1 3 1 3 2 4 2 {}}
43 do_test where6-1.4 {
44 execsql {
45 SELECT * FROM t1 LEFT JOIN t2 ON b=x AND 1=c;
46 }
47 } {1 3 1 3 2 4 2 {}}
48  
49 ifcapable explain {
50 do_test where6-1.5 {
51 explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c}
52 } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1}]
53 do_test where6-1.6 {
54 explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c}
55 } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1}]
56 }
57  
58 do_test where6-1.11 {
59 execsql {
60 SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1;
61 }
62 } {1 3 1 3}
63 do_test where6-1.12 {
64 execsql {
65 SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE c=1;
66 }
67 } {1 3 1 3}
68 do_test where6-1.13 {
69 execsql {
70 SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE 1=c;
71 }
72 } {1 3 1 3}
73  
74  
75  
76 do_test where6-2.1 {
77 execsql {
78 CREATE INDEX i1 ON t1(c);
79  
80 SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1;
81 }
82 } {1 3 1 3 2 4 2 {}}
83 do_test where6-2.2 {
84 execsql {
85 SELECT * FROM t1 LEFT JOIN t2 ON x=b AND c=1;
86 }
87 } {1 3 1 3 2 4 2 {}}
88 do_test where6-2.3 {
89 execsql {
90 SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c;
91 }
92 } {1 3 1 3 2 4 2 {}}
93 do_test where6-2.4 {
94 execsql {
95 SELECT * FROM t1 LEFT JOIN t2 ON b=x AND 1=c;
96 }
97 } {1 3 1 3 2 4 2 {}}
98  
99 ifcapable explain {
100 do_test where6-2.5 {
101 explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c}
102 } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1}]
103 do_test where6-2.6 {
104 explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c}
105 } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1}]
106 }
107  
108  
109 do_test where6-2.11 {
110 execsql {
111 SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1;
112 }
113 } {1 3 1 3}
114 do_test where6-2.12 {
115 execsql {
116 SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE c=1;
117 }
118 } {1 3 1 3}
119 do_test where6-2.13 {
120 execsql {
121 SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c;
122 }
123 } {1 3 1 3}
124 do_test where6-2.14 {
125 execsql {
126 SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE 1=c;
127 }
128 } {1 3 1 3}
129  
130 # Ticket [ebdbadade5b]:
131 # If the ON close on a LEFT JOIN is of the form x=y where both x and y
132 # are indexed columns on tables to left of the join, then do not use that
133 # term with indices to either table.
134 #
135 do_test where6-3.1 {
136 db eval {
137 CREATE TABLE t4(x UNIQUE);
138 INSERT INTO t4 VALUES('abc');
139 INSERT INTO t4 VALUES('def');
140 INSERT INTO t4 VALUES('ghi');
141 CREATE TABLE t5(a, b, c, PRIMARY KEY(a,b));
142 INSERT INTO t5 VALUES('abc','def',123);
143 INSERT INTO t5 VALUES('def','ghi',456);
144  
145 SELECT t4a.x, t4b.x, t5.c, t6.v
146 FROM t4 AS t4a
147 INNER JOIN t4 AS t4b
148 LEFT JOIN t5 ON t5.a=t4a.x AND t5.b=t4b.x
149 LEFT JOIN (SELECT 1 AS v) AS t6 ON t4a.x=t4b.x
150 ORDER BY 1, 2, 3;
151 }
152 } {abc abc {} 1 abc def 123 {} abc ghi {} {} def abc {} {} def def {} 1 def ghi 456 {} ghi abc {} {} ghi def {} {} ghi ghi {} 1}
153  
154 finish_test