| # 2008 December 23 |
| # |
| # The author disclaims copyright to this source code. In place of |
| # a legal notice, here is a blessing: |
| # |
| # May you do good and not evil. |
| # May you find forgiveness for yourself and forgive others. |
| # May you share freely, never taking more than you give. |
| # |
| #*********************************************************************** |
| # This file implements regression tests for SQLite library. The focus |
| # is testing of where.c. More specifically, the focus is the optimization |
| # of WHERE clauses that feature the OR operator. |
| # |
| # $Id: where8m.test,v 1.3 2009/06/05 17:09:12 drh Exp $ |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| |
| source $testdir/malloc_common.tcl |
| |
| do_malloc_test where8m-1 -sqlprep { |
| CREATE TABLE t1(a, b, c); |
| CREATE INDEX i1 ON t1(a); |
| CREATE INDEX i2 ON t1(b); |
| } -sqlbody { |
| SELECT c FROM t1 |
| WHERE |
| a = 2 OR b = 'three' OR a = 4 OR b = 'five' OR a = 6 OR |
| b = 'seven' OR a = 8 OR b = 'nine' OR a = 10 |
| ORDER BY rowid; |
| |
| SELECT c FROM t1 WHERE |
| a = 1 OR a = 2 OR a = 3 OR a = 4 OR a = 5 OR a = 6; |
| |
| SELECT c FROM t1 WHERE |
| a BETWEEN 1 AND 3 AND b < 5 AND b > 2 AND c = 4; |
| } |
| |
| do_malloc_test where8m-2 -tclprep { |
| db eval { |
| BEGIN; |
| CREATE TABLE t1(a, b, c); |
| CREATE INDEX i1 ON t1(a); |
| CREATE INDEX i2 ON t1(b); |
| } |
| for {set i 0} {$i < 1000} {incr i} { |
| set ii [expr $i*$i] |
| set iii [expr $i*$i] |
| db eval { INSERT INTO t1 VALUES($i, $ii, $iii) } |
| } |
| db eval COMMIT |
| } -sqlbody { |
| SELECT count(*) FROM t1 WHERE a BETWEEN 5 AND 995 OR b BETWEEN 5 AND 900000; |
| } |
| |
| finish_test |