|
1 # 2005 August 24 |
|
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 script is a test of the DELETE command where a |
|
13 # large number of rows are deleted. |
|
14 # |
|
15 |
|
16 set testdir [file dirname $argv0] |
|
17 source $testdir/tester.tcl |
|
18 |
|
19 # Create a table that contains a large number of rows. |
|
20 # |
|
21 do_test delete3-1.1 { |
|
22 execsql { |
|
23 CREATE TABLE t1(x integer primary key); |
|
24 BEGIN; |
|
25 INSERT INTO t1 VALUES(1); |
|
26 INSERT INTO t1 VALUES(2); |
|
27 INSERT INTO t1 SELECT x+2 FROM t1; |
|
28 INSERT INTO t1 SELECT x+4 FROM t1; |
|
29 INSERT INTO t1 SELECT x+8 FROM t1; |
|
30 INSERT INTO t1 SELECT x+16 FROM t1; |
|
31 INSERT INTO t1 SELECT x+32 FROM t1; |
|
32 INSERT INTO t1 SELECT x+64 FROM t1; |
|
33 INSERT INTO t1 SELECT x+128 FROM t1; |
|
34 INSERT INTO t1 SELECT x+256 FROM t1; |
|
35 INSERT INTO t1 SELECT x+512 FROM t1; |
|
36 INSERT INTO t1 SELECT x+1024 FROM t1; |
|
37 INSERT INTO t1 SELECT x+2048 FROM t1; |
|
38 INSERT INTO t1 SELECT x+4096 FROM t1; |
|
39 INSERT INTO t1 SELECT x+8192 FROM t1; |
|
40 INSERT INTO t1 SELECT x+16384 FROM t1; |
|
41 INSERT INTO t1 SELECT x+32768 FROM t1; |
|
42 INSERT INTO t1 SELECT x+65536 FROM t1; |
|
43 INSERT INTO t1 SELECT x+131072 FROM t1; |
|
44 INSERT INTO t1 SELECT x+262144 FROM t1; |
|
45 COMMIT; |
|
46 SELECT count(*) FROM t1; |
|
47 } |
|
48 } {524288} |
|
49 do_test delete3-1.2 { |
|
50 execsql { |
|
51 DELETE FROM t1 WHERE x%2==0; |
|
52 SELECT count(*) FROM t1; |
|
53 } |
|
54 } {262144} |
|
55 integrity_check delete3-1.3 |
|
56 |
|
57 finish_test |