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 focus
12 # is testing of where.c. More specifically, the focus is the optimization
13 # of WHERE clauses that feature the OR operator.
15 # $Id: where8m.test,v 1.3 2009/06/05 17:09:12 drh Exp $
17 set testdir [file dirname $argv0]
18 source $testdir/tester.tcl
20 source $testdir/malloc_common.tcl
22 do_malloc_test where8m-1 -sqlprep {
23 CREATE TABLE t1(a, b, c);
24 CREATE INDEX i1 ON t1(a);
25 CREATE INDEX i2 ON t1(b);
29 a = 2 OR b = 'three' OR a = 4 OR b = 'five' OR a = 6 OR
30 b = 'seven' OR a = 8 OR b = 'nine' OR a = 10
33 SELECT c FROM t1 WHERE
34 a = 1 OR a = 2 OR a = 3 OR a = 4 OR a = 5 OR a = 6;
36 SELECT c FROM t1 WHERE
37 a BETWEEN 1 AND 3 AND b < 5 AND b > 2 AND c = 4;
40 do_malloc_test where8m-2 -tclprep {
43 CREATE TABLE t1(a, b, c);
44 CREATE INDEX i1 ON t1(a);
45 CREATE INDEX i2 ON t1(b);
47 for {set i 0} {$i < 1000} {incr i} {
50 db eval { INSERT INTO t1 VALUES($i, $ii, $iii) }
54 SELECT count(*) FROM t1 WHERE a BETWEEN 5 AND 995 OR b BETWEEN 5 AND 900000;