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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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