| # 2005 August 24 |
| # |
| # 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 script is a test of the DELETE command where a |
| # large number of rows are deleted. |
| # |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| |
| # Create a table that contains a large number of rows. |
| # |
| do_test delete3-1.1 { |
| execsql { |
| CREATE TABLE t1(x integer primary key); |
| BEGIN; |
| INSERT INTO t1 VALUES(1); |
| INSERT INTO t1 VALUES(2); |
| INSERT INTO t1 SELECT x+2 FROM t1; |
| INSERT INTO t1 SELECT x+4 FROM t1; |
| INSERT INTO t1 SELECT x+8 FROM t1; |
| INSERT INTO t1 SELECT x+16 FROM t1; |
| INSERT INTO t1 SELECT x+32 FROM t1; |
| INSERT INTO t1 SELECT x+64 FROM t1; |
| INSERT INTO t1 SELECT x+128 FROM t1; |
| INSERT INTO t1 SELECT x+256 FROM t1; |
| INSERT INTO t1 SELECT x+512 FROM t1; |
| INSERT INTO t1 SELECT x+1024 FROM t1; |
| INSERT INTO t1 SELECT x+2048 FROM t1; |
| INSERT INTO t1 SELECT x+4096 FROM t1; |
| INSERT INTO t1 SELECT x+8192 FROM t1; |
| INSERT INTO t1 SELECT x+16384 FROM t1; |
| INSERT INTO t1 SELECT x+32768 FROM t1; |
| INSERT INTO t1 SELECT x+65536 FROM t1; |
| INSERT INTO t1 SELECT x+131072 FROM t1; |
| INSERT INTO t1 SELECT x+262144 FROM t1; |
| COMMIT; |
| SELECT count(*) FROM t1; |
| } |
| } {524288} |
| do_test delete3-1.2 { |
| execsql { |
| DELETE FROM t1 WHERE x%2==0; |
| SELECT count(*) FROM t1; |
| } |
| } {262144} |
| integrity_check delete3-1.3 |
| |
| finish_test |