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1 # 2005 July 28 | |
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 the use of indices in WHERE clauses | |
13 # when the WHERE clause contains the BETWEEN operator. | |
14 # | |
15 # $Id: between.test,v 1.2 2006/01/17 09:35:02 danielk1977 Exp $ | |
16 | |
17 set testdir [file dirname $argv0] | |
18 source $testdir/tester.tcl | |
19 | |
20 # Build some test data | |
21 # | |
22 do_test between-1.0 { | |
23 execsql { | |
24 BEGIN; | |
25 CREATE TABLE t1(w int, x int, y int, z int); | |
26 } | |
27 for {set i 1} {$i<=100} {incr i} { | |
28 set w $i | |
29 set x [expr {int(log($i)/log(2))}] | |
30 set y [expr {$i*$i + 2*$i + 1}] | |
31 set z [expr {$x+$y}] | |
32 ifcapable tclvar { | |
33 # Random unplanned test of the $varname variable syntax. | |
34 execsql {INSERT INTO t1 VALUES($::w,$::x,$::y,$::z)} | |
35 } else { | |
36 # If the $varname syntax is not available, use the regular variable | |
37 # declaration syntax. | |
38 execsql {INSERT INTO t1 VALUES(:w,:x,:y,:z)} | |
39 } | |
40 } | |
41 execsql { | |
42 CREATE UNIQUE INDEX i1w ON t1(w); | |
43 CREATE INDEX i1xy ON t1(x,y); | |
44 CREATE INDEX i1zyx ON t1(z,y,x); | |
45 COMMIT; | |
46 } | |
47 } {} | |
48 | |
49 # This procedure executes the SQL. Then it appends to the result the | |
50 # "sort" or "nosort" keyword depending on whether or not any sorting | |
51 # is done. Then it appends the names of the table and index used. | |
52 # | |
53 proc queryplan {sql} { | |
54 set ::sqlite_sort_count 0 | |
55 set data [execsql $sql] | |
56 if {$::sqlite_sort_count} {set x sort} {set x nosort} | |
57 lappend data $x | |
58 set eqp [execsql "EXPLAIN QUERY PLAN $sql"] | |
59 # puts eqp=$eqp | |
60 foreach {a b c x} $eqp { | |
61 if {[regexp { TABLE (\w+ AS )?(\w+) USING.* INDEX (\w+)\y} \ | |
62 $x all as tab idx]} { | |
63 lappend data $tab $idx | |
64 } elseif {[regexp { TABLE (\w+ AS )?(\w+)\y} $x all as tab]} { | |
65 lappend data $tab * | |
66 } | |
67 } | |
68 return $data | |
69 } | |
70 | |
71 do_test between-1.1.1 { | |
72 queryplan { | |
73 SELECT * FROM t1 WHERE w BETWEEN 5 AND 6 ORDER BY +w | |
74 } | |
75 } {5 2 36 38 6 2 49 51 sort t1 i1w} | |
76 do_test between-1.1.2 { | |
77 queryplan { | |
78 SELECT * FROM t1 WHERE +w BETWEEN 5 AND 6 ORDER BY +w | |
79 } | |
80 } {5 2 36 38 6 2 49 51 sort t1 *} | |
81 do_test between-1.2.1 { | |
82 queryplan { | |
83 SELECT * FROM t1 WHERE w BETWEEN 5 AND 65-y ORDER BY +w | |
84 } | |
85 } {5 2 36 38 6 2 49 51 sort t1 i1w} | |
86 do_test between-1.2.2 { | |
87 queryplan { | |
88 SELECT * FROM t1 WHERE +w BETWEEN 5 AND 65-y ORDER BY +w | |
89 } | |
90 } {5 2 36 38 6 2 49 51 sort t1 *} | |
91 do_test between-1.3.1 { | |
92 queryplan { | |
93 SELECT * FROM t1 WHERE w BETWEEN 41-y AND 6 ORDER BY +w | |
94 } | |
95 } {5 2 36 38 6 2 49 51 sort t1 i1w} | |
96 do_test between-1.3.2 { | |
97 queryplan { | |
98 SELECT * FROM t1 WHERE +w BETWEEN 41-y AND 6 ORDER BY +w | |
99 } | |
100 } {5 2 36 38 6 2 49 51 sort t1 *} | |
101 do_test between-1.4 { | |
102 queryplan { | |
103 SELECT * FROM t1 WHERE w BETWEEN 41-y AND 65-y ORDER BY +w | |
104 } | |
105 } {5 2 36 38 6 2 49 51 sort t1 *} | |
106 do_test between-1.5.1 { | |
107 queryplan { | |
108 SELECT * FROM t1 WHERE 26 BETWEEN y AND z ORDER BY +w | |
109 } | |
110 } {4 2 25 27 sort t1 i1zyx} | |
111 do_test between-1.5.2 { | |
112 queryplan { | |
113 SELECT * FROM t1 WHERE 26 BETWEEN +y AND z ORDER BY +w | |
114 } | |
115 } {4 2 25 27 sort t1 i1zyx} | |
116 do_test between-1.5.3 { | |
117 queryplan { | |
118 SELECT * FROM t1 WHERE 26 BETWEEN y AND +z ORDER BY +w | |
119 } | |
120 } {4 2 25 27 sort t1 *} | |
121 | |
122 | |
123 finish_test | |
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