xref: /sqlite-3.40.0/test/between.test (revision b0c4ef71) 
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
17set testdir [file dirname $argv0]
18source $testdir/tester.tcl
19
20# Build some test data
21#
22do_test between-1.0 {
23  execsql {
24    BEGIN;
25    CREATE TABLE t1(w int, x int, y int, z int);
26  }
27  for {set i 1} {$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#
53proc 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
71do_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}
76do_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 *}
81do_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}
86do_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 *}
91do_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}
96do_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 *}
101do_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 *}
106do_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}
111do_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}
116do_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#-------------------------------------------------------------------------
123reset_db
124do_execsql_test between-2.0 {
125  CREATE TABLE t1(x TEXT, y TEXT COLLATE nocase);
126  INSERT INTO t1 VALUES('0', 'abc');
127}
128
129foreach {tn expr res} {
130  1 "x                BETWEEN 1 AND '5'" 0
131  2 "x COLLATE binary BETWEEN 1 AND '5'" 0
132  3 "x COLLATE nocase BETWEEN 1 AND '5'" 0
133
134  4 "y                  BETWEEN 'A' AND 'B'" 1
135  5 "y COLLATE nocase   BETWEEN 'A' AND 'B'" 1
136  6 "y COLLATE binary   BETWEEN 'A' AND 'B'" 0
137  7 "(y COLLATE binary) BETWEEN 'A' AND 'B'" 0
138} {
139  set sql "SELECT $expr FROM t1"
140  do_execsql_test between-2.1.$tn $sql $res
141}
142
143finish_test
144