3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
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.
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.
15 # $Id: between.test,v 1.2 2006/01/17 09:35:02 danielk1977 Exp $
17 set testdir [file dirname $argv0]
18 source $testdir/tester.tcl
20 # Build some test data
25 CREATE TABLE t1(w int, x int, y int, z int);
27 for {set i 1} {$i<=100} {incr i} {
29 set x [expr {int(log($i)/log(2))}]
30 set y [expr {$i*$i + 2*$i + 1}]
33 # Random unplanned test of the $varname variable syntax.
34 execsql {INSERT INTO t1 VALUES($::w,$::x,$::y,$::z)}
36 # If the $varname syntax is not available, use the regular variable
38 execsql {INSERT INTO t1 VALUES(:w,:x,:y,:z)}
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);
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.
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}
58 set eqp [execsql "EXPLAIN QUERY PLAN $sql"]
60 foreach {a b c x} $eqp {
61 if {[regexp { TABLE (\w+ AS )?(\w+) USING.* INDEX (\w+)\y} \
63 lappend data $tab $idx
64 } elseif {[regexp { TABLE (\w+ AS )?(\w+)\y} $x all as tab]} {
71 do_test between-1.1.1 {
73 SELECT * FROM t1 WHERE w BETWEEN 5 AND 6 ORDER BY +w
75 } {5 2 36 38 6 2 49 51 sort t1 i1w}
76 do_test between-1.1.2 {
78 SELECT * FROM t1 WHERE +w BETWEEN 5 AND 6 ORDER BY +w
80 } {5 2 36 38 6 2 49 51 sort t1 *}
81 do_test between-1.2.1 {
83 SELECT * FROM t1 WHERE w BETWEEN 5 AND 65-y ORDER BY +w
85 } {5 2 36 38 6 2 49 51 sort t1 i1w}
86 do_test between-1.2.2 {
88 SELECT * FROM t1 WHERE +w BETWEEN 5 AND 65-y ORDER BY +w
90 } {5 2 36 38 6 2 49 51 sort t1 *}
91 do_test between-1.3.1 {
93 SELECT * FROM t1 WHERE w BETWEEN 41-y AND 6 ORDER BY +w
95 } {5 2 36 38 6 2 49 51 sort t1 i1w}
96 do_test between-1.3.2 {
98 SELECT * FROM t1 WHERE +w BETWEEN 41-y AND 6 ORDER BY +w
100 } {5 2 36 38 6 2 49 51 sort t1 *}
101 do_test between-1.4 {
103 SELECT * FROM t1 WHERE w BETWEEN 41-y AND 65-y ORDER BY +w
105 } {5 2 36 38 6 2 49 51 sort t1 *}
106 do_test between-1.5.1 {
108 SELECT * FROM t1 WHERE 26 BETWEEN y AND z ORDER BY +w
110 } {4 2 25 27 sort t1 i1zyx}
111 do_test between-1.5.2 {
113 SELECT * FROM t1 WHERE 26 BETWEEN +y AND z ORDER BY +w
115 } {4 2 25 27 sort t1 i1zyx}
116 do_test between-1.5.3 {
118 SELECT * FROM t1 WHERE 26 BETWEEN y AND +z ORDER BY +w
120 } {4 2 25 27 sort t1 *}