| # 2012 November 9 |
| # |
| # 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 of this file is testing the query planner to make sure it |
| # is making good planning decisions. |
| # |
| |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| set ::testprefix whereE |
| |
| do_execsql_test 1.1 { |
| CREATE TABLE t1(a,b); |
| INSERT INTO t1 VALUES(1,10), (2,20), (3,30), (2,22), (3, 33); |
| INSERT INTO t1 SELECT * FROM t1; |
| INSERT INTO t1 SELECT * FROM t1; |
| INSERT INTO t1 SELECT * FROM t1; |
| INSERT INTO t1 SELECT * FROM t1; |
| INSERT INTO t1 SELECT * FROM t1; |
| INSERT INTO t1 SELECT * FROM t1; |
| INSERT INTO t1 SELECT * FROM t1; |
| INSERT INTO t1 SELECT * FROM t1; |
| INSERT INTO t1 SELECT * FROM t1; |
| INSERT INTO t1 SELECT * FROM t1; |
| ALTER TABLE t1 ADD COLUMN c; |
| UPDATE t1 SET c=a*rowid+10000; |
| CREATE INDEX t1ab ON t1(a,b); |
| |
| CREATE TABLE t2(x,y); |
| INSERT INTO t2 VALUES(4,44),(5,55),(6,66),(7,77); |
| INSERT INTO t2 SELECT x+4, (x+4)*11 FROM t2; |
| INSERT INTO t2 SELECT x+8, (x+8)*11 FROM t2; |
| INSERT INTO t2 SELECT x+16, (x+16)*11 FROM t2; |
| INSERT INTO t2 SELECT x+32, (x+32)*11 FROM t2; |
| INSERT INTO t2 SELECT x+64, (x+32)*11 FROM t2; |
| ALTER TABLE t2 ADD COLUMN z; |
| UPDATE t2 SET z=2; |
| CREATE UNIQUE INDEX t2zx ON t2(z,x); |
| |
| EXPLAIN QUERY PLAN SELECT x FROM t1, t2 WHERE a=z AND c=x; |
| } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} |
| do_execsql_test 1.2 { |
| EXPLAIN QUERY PLAN SELECT x FROM t2, t1 WHERE a=z AND c=x; |
| } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} |
| do_execsql_test 1.3 { |
| ANALYZE; |
| EXPLAIN QUERY PLAN SELECT x FROM t1, t2 WHERE a=z AND c=x; |
| } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} |
| do_execsql_test 1.4 { |
| EXPLAIN QUERY PLAN SELECT x FROM t2, t1 WHERE a=z AND c=x; |
| } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} |
| |
| finish_test |