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1 # 2012 November 9 | |
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 | |
12 # focus of this file is testing the query planner to make sure it | |
13 # is making good planning decisions. | |
14 # | |
15 | |
16 | |
17 set testdir [file dirname $argv0] | |
18 source $testdir/tester.tcl | |
19 set ::testprefix whereE | |
20 | |
21 do_execsql_test 1.1 { | |
22 CREATE TABLE t1(a,b); | |
23 INSERT INTO t1 VALUES(1,10), (2,20), (3,30), (2,22), (3, 33); | |
24 INSERT INTO t1 SELECT * FROM t1; | |
25 INSERT INTO t1 SELECT * FROM t1; | |
26 INSERT INTO t1 SELECT * FROM t1; | |
27 INSERT INTO t1 SELECT * FROM t1; | |
28 INSERT INTO t1 SELECT * FROM t1; | |
29 INSERT INTO t1 SELECT * FROM t1; | |
30 INSERT INTO t1 SELECT * FROM t1; | |
31 INSERT INTO t1 SELECT * FROM t1; | |
32 INSERT INTO t1 SELECT * FROM t1; | |
33 INSERT INTO t1 SELECT * FROM t1; | |
34 ALTER TABLE t1 ADD COLUMN c; | |
35 UPDATE t1 SET c=a*rowid+10000; | |
36 CREATE INDEX t1ab ON t1(a,b); | |
37 | |
38 CREATE TABLE t2(x,y); | |
39 INSERT INTO t2 VALUES(4,44),(5,55),(6,66),(7,77); | |
40 INSERT INTO t2 SELECT x+4, (x+4)*11 FROM t2; | |
41 INSERT INTO t2 SELECT x+8, (x+8)*11 FROM t2; | |
42 INSERT INTO t2 SELECT x+16, (x+16)*11 FROM t2; | |
43 INSERT INTO t2 SELECT x+32, (x+32)*11 FROM t2; | |
44 INSERT INTO t2 SELECT x+64, (x+32)*11 FROM t2; | |
45 ALTER TABLE t2 ADD COLUMN z; | |
46 UPDATE t2 SET z=2; | |
47 CREATE UNIQUE INDEX t2zx ON t2(z,x); | |
48 | |
49 EXPLAIN QUERY PLAN SELECT x FROM t1, t2 WHERE a=z AND c=x; | |
50 } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} | |
51 do_execsql_test 1.2 { | |
52 EXPLAIN QUERY PLAN SELECT x FROM t2, t1 WHERE a=z AND c=x; | |
53 } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} | |
54 do_execsql_test 1.3 { | |
55 ANALYZE; | |
56 EXPLAIN QUERY PLAN SELECT x FROM t1, t2 WHERE a=z AND c=x; | |
57 } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} | |
58 do_execsql_test 1.4 { | |
59 EXPLAIN QUERY PLAN SELECT x FROM t2, t1 WHERE a=z AND c=x; | |
60 } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} | |
61 | |
62 finish_test | |
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