265 lines
7.3 KiB
Plaintext
265 lines
7.3 KiB
Plaintext
# 2005 August 24
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library. The
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# focus of this script is a test of the DELETE command.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix delete4
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do_execsql_test 1.1 {
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CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
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INSERT INTO t1 VALUES(1, 0);
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INSERT INTO t1 VALUES(2, 1);
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INSERT INTO t1 VALUES(3, 0);
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INSERT INTO t1 VALUES(4, 1);
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INSERT INTO t1 VALUES(5, 0);
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INSERT INTO t1 VALUES(6, 1);
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INSERT INTO t1 VALUES(7, 0);
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INSERT INTO t1 VALUES(8, 1);
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}
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do_execsql_test 1.2 {
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DELETE FROM t1 WHERE y=1;
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}
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do_execsql_test 1.3 {
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SELECT x FROM t1;
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} {1 3 5 7}
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#-------------------------------------------------------------------------
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#
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reset_db
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do_execsql_test 2.1 {
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CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z);
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INSERT INTO t1 VALUES(1, 0, randomblob(200));
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INSERT INTO t1 VALUES(2, 1, randomblob(200));
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INSERT INTO t1 VALUES(3, 0, randomblob(200));
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INSERT INTO t1 VALUES(4, 1, randomblob(200));
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INSERT INTO t1 VALUES(5, 0, randomblob(200));
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INSERT INTO t1 VALUES(6, 1, randomblob(200));
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INSERT INTO t1 VALUES(7, 0, randomblob(200));
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INSERT INTO t1 VALUES(8, 1, randomblob(200));
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}
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do_execsql_test 2.2 {
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DELETE FROM t1 WHERE y=1;
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}
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do_execsql_test 2.3 {
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SELECT x FROM t1;
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} {1 3 5 7}
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#-------------------------------------------------------------------------
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#
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reset_db
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do_execsql_test 3.1 {
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CREATE TABLE t1(a, b, PRIMARY KEY(a, b)) WITHOUT ROWID;
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INSERT INTO t1 VALUES(1, 2);
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INSERT INTO t1 VALUES(2, 4);
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INSERT INTO t1 VALUES(1, 5);
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DELETE FROM t1 WHERE a=1;
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SELECT * FROM t1;
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} {2 4}
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#-------------------------------------------------------------------------
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# DELETE statement that uses the OR optimization
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#
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reset_db
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do_execsql_test 3.1 {
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CREATE TABLE t1(i INTEGER PRIMARY KEY, a, b);
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CREATE INDEX i1a ON t1(a);
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CREATE INDEX i1b ON t1(b);
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INSERT INTO t1 VALUES(1, 'one', 'i');
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INSERT INTO t1 VALUES(2, 'two', 'ii');
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INSERT INTO t1 VALUES(3, 'three', 'iii');
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INSERT INTO t1 VALUES(4, 'four', 'iv');
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INSERT INTO t1 VALUES(5, 'one', 'i');
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INSERT INTO t1 VALUES(6, 'two', 'ii');
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INSERT INTO t1 VALUES(7, 'three', 'iii');
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INSERT INTO t1 VALUES(8, 'four', 'iv');
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} {}
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do_execsql_test 3.2 {
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DELETE FROM t1 WHERE a='two' OR b='iv';
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}
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do_execsql_test 3.3 {
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SELECT i FROM t1 ORDER BY i;
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} {1 3 5 7}
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do_execsql_test 3.4 {
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PRAGMA integrity_check;
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} {ok}
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# Between 2015-09-14 and 2015-09-28, the following test cases would result
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# in corruption (wrong # of entries in index) due to a bug in the ONEPASS
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# optimization.
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#
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do_execsql_test 4.1 {
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DROP TABLE IF EXISTS t4;
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CREATE TABLE t4(col0, col1);
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INSERT INTO "t4" VALUES(14, 'abcde');
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CREATE INDEX idx_t4_0 ON t4 (col1, col0);
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CREATE INDEX idx_t4_3 ON t4 (col0);
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DELETE FROM t4 WHERE col0=69 OR col0>7;
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PRAGMA integrity_check;
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} {ok}
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do_execsql_test 4.2 {
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DROP TABLE IF EXISTS t4;
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CREATE TABLE t4(col0, col1);
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INSERT INTO "t4" VALUES(14, 'abcde');
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CREATE INDEX idx_t4_3 ON t4 (col0);
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CREATE INDEX idx_t4_0 ON t4 (col1, col0);
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DELETE FROM t4 WHERE col0=69 OR col0>7;
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PRAGMA integrity_check;
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} {ok}
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do_execsql_test 4.11 {
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DROP TABLE IF EXISTS t4;
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CREATE TABLE t4(col0, col1, pk PRIMARY KEY) WITHOUT ROWID;
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INSERT INTO t4 VALUES(14, 'abcde','xyzzy');
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CREATE INDEX idx_t4_0 ON t4 (col1, col0);
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CREATE INDEX idx_t4_3 ON t4 (col0);
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DELETE FROM t4 WHERE col0=69 OR col0>7;
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PRAGMA integrity_check;
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} {ok}
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do_execsql_test 4.12 {
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DROP TABLE IF EXISTS t4;
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CREATE TABLE t4(col0, col1, pk PRIMARY KEY) WITHOUT ROWID;
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INSERT INTO t4 VALUES(14, 'abcde','xyzzy');
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CREATE INDEX idx_t4_3 ON t4 (col0);
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CREATE INDEX idx_t4_0 ON t4 (col1, col0);
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DELETE FROM t4 WHERE col0=69 OR col0>7;
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PRAGMA integrity_check;
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} {ok}
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# 2016-04-09
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# Ticket https://sqlite.org/src/info/a306e56ff68b8fa5
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# Failure to completely delete when reverse_unordered_selects is
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# engaged.
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#
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db close
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forcedelete test.db
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sqlite3 db test.db
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do_execsql_test 5.0 {
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PRAGMA page_size=1024;
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CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
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CREATE INDEX x1 ON t1(b, c);
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INSERT INTO t1(a,b,c) VALUES(1, 1, zeroblob(80));
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INSERT INTO t1(a,b,c) SELECT a+1, 1, c FROM t1;
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INSERT INTO t1(a,b,c) SELECT a+2, 1, c FROM t1;
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INSERT INTO t1(a,b,c) SELECT a+10, 2, c FROM t1 WHERE b=1;
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INSERT INTO t1(a,b,c) SELECT a+20, 3, c FROM t1 WHERE b=1;
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PRAGMA reverse_unordered_selects = ON;
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DELETE FROM t1 WHERE b=2;
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SELECT a FROM t1 WHERE b=2;
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} {}
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# 2016-05-02
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# Ticket https://www.sqlite.org/src/tktview/dc6ebeda93960877
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# A subquery in the WHERE clause of a one-pass DELETE can cause an
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# incorrect answer.
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#
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db close
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forcedelete test.db
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sqlite3 db test.db
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do_execsql_test 6.0 {
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CREATE TABLE t2(x INT);
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INSERT INTO t2(x) VALUES(1),(2),(3),(4),(5);
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DELETE FROM t2 WHERE EXISTS(SELECT 1 FROM t2 AS v WHERE v.x=t2.x-1);
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SELECT x FROM t2;
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} {1}
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do_execsql_test 6.1 {
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DROP TABLE IF EXISTS t2;
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CREATE TABLE t2(x INT);
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INSERT INTO t2(x) VALUES(1),(2),(3),(4),(5);
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DELETE FROM t2 WHERE EXISTS(SELECT 1 FROM t2 AS v WHERE v.x=t2.x+1);
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SELECT x FROM t2;
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} {5}
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#-------------------------------------------------------------------------
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# Test the effect of failing to find a table row based on an index key
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# within a DELETE. Either because the db is corrupt, or a trigger on another
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# row already deleted the entry, or because a BEFORE trigger on the current
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# row has already deleted it.
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#
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do_execsql_test 7.1.0 {
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CREATE TABLE t3(id INT PRIMARY KEY, a, b) WITHOUT ROWID;
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CREATE INDEX t3a ON t3(a);
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CREATE INDEX t3b ON t3(b);
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INSERT INTO t3 VALUES(1, 1, 1);
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INSERT INTO t3 VALUES(2, 2, 2);
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INSERT INTO t3 VALUES(3, 3, 3);
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INSERT INTO t3 VALUES(4, 4, 1);
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}
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do_execsql_test 7.1.1 {
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DELETE FROM t3 WHERE a=4 OR b=1;
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}
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do_execsql_test 7.1.2 {
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SELECT * FROM t3;
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} { 2 2 2 3 3 3 }
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do_execsql_test 7.2.0 {
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CREATE TABLE t4(a PRIMARY KEY, b) WITHOUT ROWID;
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CREATE INDEX t4i ON t4(b);
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INSERT INTO t4 VALUES(1, 'hello');
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INSERT INTO t4 VALUES(2, 'world');
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CREATE TABLE t5(a PRIMARY KEY, b) WITHOUT ROWID;
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CREATE INDEX t5i ON t5(b);
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INSERT INTO t5 VALUES(1, 'hello');
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INSERT INTO t5 VALUES(3, 'world');
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PRAGMA writable_schema = 1;
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UPDATE sqlite_master SET rootpage = (
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SELECT rootpage FROM sqlite_master WHERE name = 't5'
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) WHERE name = 't4';
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}
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db close
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sqlite3 db test.db
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do_execsql_test 7.2.1 {
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DELETE FROM t4 WHERE b='world'
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}
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reset_db
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do_execsql_test 7.3.0 {
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CREATE TABLE t3(id INT PRIMARY KEY, a, b) WITHOUT ROWID;
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INSERT INTO t3 VALUES(1, 2, 3);
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INSERT INTO t3 VALUES(4, 5, 6);
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INSERT INTO t3 VALUES(7, 8, 9);
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CREATE TRIGGER t3t BEFORE DELETE ON t3 BEGIN
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DELETE FROM t3 WHERE id=old.id+3;
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END;
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}
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do_execsql_test 7.3.1 {
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DELETE FROM t3 WHERE a IN(2, 5, 8);
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SELECT * FROM t3;
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} {}
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do_execsql_test 7.3.2 {
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DROP TRIGGER t3t;
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INSERT INTO t3 VALUES(1, 2, 3);
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INSERT INTO t3 VALUES(4, 5, 6);
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INSERT INTO t3 VALUES(7, 8, 9);
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CREATE TRIGGER t3t BEFORE DELETE ON t3 BEGIN
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DELETE FROM t3 WHERE id=old.id;
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END;
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}
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do_execsql_test 7.3.3 {
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DELETE FROM t3 WHERE a IN(2, 5, 8);
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SELECT * FROM t3;
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} {}
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finish_test
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