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test/delete3.test
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drh
Fix a bug in DELETE that might cause a segfault when deleting more
24 авг 2005, 20:13
24 авг 2005, 20:13
3ca84ba
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# 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