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| 1 # 2008 December 23 | |
| 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 focus | |
| 12 # is testing of where.c. More specifically, the focus is the optimization | |
| 13 # of WHERE clauses that feature the OR operator. | |
| 14 # | |
| 15 # $Id: where8m.test,v 1.3 2009/06/05 17:09:12 drh Exp $ | |
| 16 | |
| 17 set testdir [file dirname $argv0] | |
| 18 source $testdir/tester.tcl | |
| 19 | |
| 20 source $testdir/malloc_common.tcl | |
| 21 | |
| 22 do_malloc_test where8m-1 -sqlprep { | |
| 23 CREATE TABLE t1(a, b, c); | |
| 24 CREATE INDEX i1 ON t1(a); | |
| 25 CREATE INDEX i2 ON t1(b); | |
| 26 } -sqlbody { | |
| 27 SELECT c FROM t1 | |
| 28 WHERE | |
| 29 a = 2 OR b = 'three' OR a = 4 OR b = 'five' OR a = 6 OR | |
| 30 b = 'seven' OR a = 8 OR b = 'nine' OR a = 10 | |
| 31 ORDER BY rowid; | |
| 32 | |
| 33 SELECT c FROM t1 WHERE | |
| 34 a = 1 OR a = 2 OR a = 3 OR a = 4 OR a = 5 OR a = 6; | |
| 35 | |
| 36 SELECT c FROM t1 WHERE | |
| 37 a BETWEEN 1 AND 3 AND b < 5 AND b > 2 AND c = 4; | |
| 38 } | |
| 39 | |
| 40 do_malloc_test where8m-2 -tclprep { | |
| 41 db eval { | |
| 42 BEGIN; | |
| 43 CREATE TABLE t1(a, b, c); | |
| 44 CREATE INDEX i1 ON t1(a); | |
| 45 CREATE INDEX i2 ON t1(b); | |
| 46 } | |
| 47 for {set i 0} {$i < 1000} {incr i} { | |
| 48 set ii [expr $i*$i] | |
| 49 set iii [expr $i*$i] | |
| 50 db eval { INSERT INTO t1 VALUES($i, $ii, $iii) } | |
| 51 } | |
| 52 db eval COMMIT | |
| 53 } -sqlbody { | |
| 54 SELECT count(*) FROM t1 WHERE a BETWEEN 5 AND 995 OR b BETWEEN 5 AND 900000; | |
| 55 } | |
| 56 | |
| 57 finish_test | |
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