3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
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.
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.
16 set testdir [file dirname $argv0]
17 source $testdir/tester.tcl
19 # Create a table that contains a large number of rows.
23 CREATE TABLE t1(x integer primary key);
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;
46 SELECT count(*) FROM t1;
51 DELETE FROM t1 WHERE x%2==0;
52 SELECT count(*) FROM t1;
55 integrity_check delete3-1.3