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# 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 tests creating and dropping triggers, and interaction thereof
# with the database COMMIT/ROLLBACK logic.
#
# 1. CREATE and DROP TRIGGER tests
# trigger1-1.1: Error if table does not exist
# trigger1-1.2: Error if trigger already exists
# trigger1-1.3: Created triggers are deleted if the transaction is rolled back
# trigger1-1.4: DROP TRIGGER removes trigger
# trigger1-1.5: Dropped triggers are restored if the transaction is rolled back
# trigger1-1.6: Error if dropped trigger doesn't exist
# trigger1-1.7: Dropping the table automatically drops all triggers
# trigger1-1.8: A trigger created on a TEMP table is not inserted into sqlite_master
# trigger1-1.9: Ensure that we cannot create a trigger on sqlite_master
# trigger1-1.10:
# trigger1-1.11:
# trigger1-1.12: Ensure that INSTEAD OF triggers cannot be created on tables
# trigger1-1.13: Ensure that AFTER triggers cannot be created on views
# trigger1-1.14: Ensure that BEFORE triggers cannot be created on views
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
ifcapable !trigger||!compound {
finish_test
return
}
do_test trigger1-1.1.1 {
catchsql {
CREATE TRIGGER trig UPDATE ON no_such_table BEGIN
SELECT * from sqlite_master;
END;
}
} {1 {no such table: main.no_such_table}}
ifcapable tempdb {
do_test trigger1-1.1.2 {
catchsql {
CREATE TEMP TRIGGER trig UPDATE ON no_such_table BEGIN
SELECT * from sqlite_master;
END;
}
} {1 {no such table: no_such_table}}
}
execsql {
CREATE TABLE t1(a);
}
do_test trigger1-1.1.3 {
catchsql {
CREATE TRIGGER trig UPDATE ON t1 FOR EACH STATEMENT BEGIN
SELECT * FROM sqlite_master;
END;
}
} {1 {near "STATEMENT": syntax error}}
execsql {
CREATE TRIGGER tr1 INSERT ON t1 BEGIN
INSERT INTO t1 values(1);
END;
}
do_test trigger1-1.2.0 {
catchsql {
CREATE TRIGGER IF NOT EXISTS tr1 DELETE ON t1 BEGIN
SELECT * FROM sqlite_master;
END
}
} {0 {}}
do_test trigger1-1.2.1 {
catchsql {
CREATE TRIGGER tr1 DELETE ON t1 BEGIN
SELECT * FROM sqlite_master;
END
}
} {1 {trigger tr1 already exists}}
do_test trigger1-1.2.2 {
catchsql {
CREATE TRIGGER "tr1" DELETE ON t1 BEGIN
SELECT * FROM sqlite_master;
END
}
} {1 {trigger "tr1" already exists}}
do_test trigger1-1.2.3 {
catchsql {
CREATE TRIGGER [tr1] DELETE ON t1 BEGIN
SELECT * FROM sqlite_master;
END
}
} {1 {trigger [tr1] already exists}}
do_test trigger1-1.3 {
catchsql {
BEGIN;
CREATE TRIGGER tr2 INSERT ON t1 BEGIN
SELECT * from sqlite_master; END;
ROLLBACK;
CREATE TRIGGER tr2 INSERT ON t1 BEGIN
SELECT * from sqlite_master; END;
}
} {0 {}}
do_test trigger1-1.4 {
catchsql {
DROP TRIGGER IF EXISTS tr1;
CREATE TRIGGER tr1 DELETE ON t1 BEGIN
SELECT * FROM sqlite_master;
END
}
} {0 {}}
do_test trigger1-1.5 {
execsql {
BEGIN;
DROP TRIGGER tr2;
ROLLBACK;
DROP TRIGGER tr2;
}
} {}
do_test trigger1-1.6.1 {
catchsql {
DROP TRIGGER IF EXISTS biggles;
}
} {0 {}}
do_test trigger1-1.6.2 {
catchsql {
DROP TRIGGER biggles;
}
} {1 {no such trigger: biggles}}
do_test trigger1-1.7 {
catchsql {
DROP TABLE t1;
DROP TRIGGER tr1;
}
} {1 {no such trigger: tr1}}
ifcapable tempdb {
execsql {
CREATE TEMP TABLE temp_table(a);
}
do_test trigger1-1.8 {
execsql {
CREATE TRIGGER temp_trig UPDATE ON temp_table BEGIN
SELECT * from sqlite_master;
END;
SELECT count(*) FROM sqlite_master WHERE name = 'temp_trig';
}
} {0}
}
do_test trigger1-1.9 {
catchsql {
CREATE TRIGGER tr1 AFTER UPDATE ON sqlite_master BEGIN
SELECT * FROM sqlite_master;
END;
}
} {1 {cannot create trigger on system table}}
# Check to make sure that a DELETE statement within the body of
# a trigger does not mess up the DELETE that caused the trigger to
# run in the first place.
#
do_test trigger1-1.10 {
execsql {
create table t1(a,b);
insert into t1 values(1,'a');
insert into t1 values(2,'b');
insert into t1 values(3,'c');
insert into t1 values(4,'d');
create trigger r1 after delete on t1 for each row begin
delete from t1 WHERE a=old.a+2;
end;
delete from t1 where a=1 OR a=3;
select * from t1;
drop table t1;
}
} {2 b 4 d}
do_test trigger1-1.11 {
execsql {
create table t1(a,b);
insert into t1 values(1,'a');
insert into t1 values(2,'b');
insert into t1 values(3,'c');
insert into t1 values(4,'d');
create trigger r1 after update on t1 for each row begin
delete from t1 WHERE a=old.a+2;
end;
update t1 set b='x-' || b where a=1 OR a=3;
select * from t1;
drop table t1;
}
} {1 x-a 2 b 4 d}
# Ensure that we cannot create INSTEAD OF triggers on tables
do_test trigger1-1.12 {
catchsql {
create table t1(a,b);
create trigger t1t instead of update on t1 for each row begin
delete from t1 WHERE a=old.a+2;
end;
}
} {1 {cannot create INSTEAD OF trigger on table: t1}}
ifcapable view {
# Ensure that we cannot create BEFORE triggers on views
do_test trigger1-1.13 {
catchsql {
create view v1 as select * from t1;
create trigger v1t before update on v1 for each row begin
delete from t1 WHERE a=old.a+2;
end;
}
} {1 {cannot create BEFORE trigger on view: v1}}
# Ensure that we cannot create AFTER triggers on views
do_test trigger1-1.14 {
catchsql {
drop view v1;
create view v1 as select * from t1;
create trigger v1t AFTER update on v1 for each row begin
delete from t1 WHERE a=old.a+2;
end;
}
} {1 {cannot create AFTER trigger on view: v1}}
} ;# ifcapable view
# Check for memory leaks in the trigger parser
#
do_test trigger1-2.1 {
catchsql {
CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
SELECT * FROM; -- Syntax error
END;
}
} {1 {near ";": syntax error}}
do_test trigger1-2.2 {
catchsql {
CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
SELECT * FROM t1;
SELECT * FROM; -- Syntax error
END;
}
} {1 {near ";": syntax error}}
# Create a trigger that refers to a table that might not exist.
#
ifcapable tempdb {
do_test trigger1-3.1 {
execsql {
CREATE TEMP TABLE t2(x,y);
}
catchsql {
CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
INSERT INTO t2 VALUES(NEW.a,NEW.b);
END;
}
} {0 {}}
do_test trigger1-3.2 {
catchsql {
INSERT INTO t1 VALUES(1,2);
SELECT * FROM t2;
}
} {1 {no such table: main.t2}}
do_test trigger1-3.3 {
db close
set rc [catch {sqlite3 db test.db} err]
if {$rc} {lappend rc $err}
set rc
} {0}
do_test trigger1-3.4 {
catchsql {
INSERT INTO t1 VALUES(1,2);
SELECT * FROM t2;
}
} {1 {no such table: main.t2}}
do_test trigger1-3.5 {
catchsql {
CREATE TEMP TABLE t2(x,y);
INSERT INTO t1 VALUES(1,2);
SELECT * FROM t2;
}
} {1 {no such table: main.t2}}
do_test trigger1-3.6.1 {
catchsql {
DROP TRIGGER r1;
CREATE TEMP TRIGGER r1 AFTER INSERT ON t1 BEGIN
INSERT INTO t2 VALUES(NEW.a,NEW.b), (NEW.b*100, NEW.a*100);
END;
INSERT INTO t1 VALUES(1,2);
SELECT * FROM t2;
}
} {0 {1 2 200 100}}
do_test trigger1-3.6.2 {
catchsql {
DROP TRIGGER r1;
DELETE FROM t1;
DELETE FROM t2;
CREATE TEMP TRIGGER r1 AFTER INSERT ON t1 BEGIN
INSERT INTO t2 VALUES(NEW.a,NEW.b);
END;
INSERT INTO t1 VALUES(1,2);
SELECT * FROM t2;
}
} {0 {1 2}}
do_test trigger1-3.7 {
execsql {
DROP TABLE t2;
CREATE TABLE t2(x,y);
SELECT * FROM t2;
}
} {}
# There are two versions of trigger1-3.8 and trigger1-3.9. One that uses
# compound SELECT statements, and another that does not.
ifcapable compound {
do_test trigger1-3.8 {
execsql {
INSERT INTO t1 VALUES(3,4);
SELECT * FROM t1 UNION ALL SELECT * FROM t2;
}
} {1 2 3 4 3 4}
do_test trigger1-3.9 {
db close
sqlite3 db test.db
execsql {
INSERT INTO t1 VALUES(5,6);
SELECT * FROM t1 UNION ALL SELECT * FROM t2;
}
} {1 2 3 4 5 6 3 4}
} ;# ifcapable compound
ifcapable !compound {
do_test trigger1-3.8 {
execsql {
INSERT INTO t1 VALUES(3,4);
SELECT * FROM t1;
SELECT * FROM t2;
}
} {1 2 3 4 3 4}
do_test trigger1-3.9 {
db close
sqlite3 db test.db
execsql {
INSERT INTO t1 VALUES(5,6);
SELECT * FROM t1;
SELECT * FROM t2;
}
} {1 2 3 4 5 6 3 4}
} ;# ifcapable !compound
do_test trigger1-4.1 {
execsql {
CREATE TEMP TRIGGER r1 BEFORE INSERT ON t1 BEGIN
INSERT INTO t2 VALUES(NEW.a,NEW.b);
END;
INSERT INTO t1 VALUES(7,8);
SELECT * FROM t2;
}
} {3 4 7 8}
do_test trigger1-4.2 {
sqlite3 db2 test.db
execsql {
INSERT INTO t1 VALUES(9,10);
} db2;
db2 close
execsql {
SELECT * FROM t2;
}
} {3 4 7 8}
do_test trigger1-4.3 {
execsql {
DROP TABLE t1;
SELECT * FROM t2;
};
} {3 4 7 8}
do_test trigger1-4.4 {
db close
sqlite3 db test.db
execsql {
SELECT * FROM t2;
};
} {3 4 7 8}
} else {
execsql {
CREATE TABLE t2(x,y);
DROP TABLE t1;
INSERT INTO t2 VALUES(3, 4);
INSERT INTO t2 VALUES(7, 8);
}
}
integrity_check trigger1-5.1
# Create a trigger with the same name as a table. Make sure the
# trigger works. Then drop the trigger. Make sure the table is
# still there.
#
set view_v1 {}
ifcapable view {
set view_v1 {view v1}
}
do_test trigger1-6.1 {
execsql {SELECT type, name FROM sqlite_master}
} [concat $view_v1 {table t2}]
do_test trigger1-6.2 {
execsql {
CREATE TRIGGER t2 BEFORE DELETE ON t2 BEGIN
SELECT RAISE(ABORT,'deletes are not permitted');
END;
SELECT type, name FROM sqlite_master;
}
} [concat $view_v1 {table t2 trigger t2}]
do_test trigger1-6.3 {
catchsql {DELETE FROM t2}
} {1 {deletes are not permitted}}
verify_ex_errcode trigger1-6.3b SQLITE_CONSTRAINT_TRIGGER
do_test trigger1-6.4 {
execsql {SELECT * FROM t2}
} {3 4 7 8}
do_test trigger1-6.5 {
db close
sqlite3 db test.db
execsql {SELECT type, name FROM sqlite_master}
} [concat $view_v1 {table t2 trigger t2}]
do_test trigger1-6.6 {
execsql {
DROP TRIGGER t2;
SELECT type, name FROM sqlite_master;
}
} [concat $view_v1 {table t2}]
do_test trigger1-6.7 {
execsql {SELECT * FROM t2}
} {3 4 7 8}
do_test trigger1-6.8 {
db close
sqlite3 db test.db
execsql {SELECT * FROM t2}
} {3 4 7 8}
integrity_check trigger1-7.1
# Check to make sure the name of a trigger can be quoted so that keywords
# can be used as trigger names. Ticket #468
#
do_test trigger1-8.1 {
execsql {
CREATE TRIGGER 'trigger' AFTER INSERT ON t2 BEGIN SELECT 1; END;
SELECT name FROM sqlite_master WHERE type='trigger';
}
} {trigger}
do_test trigger1-8.2 {
execsql {
DROP TRIGGER 'trigger';
SELECT name FROM sqlite_master WHERE type='trigger';
}
} {}
do_test trigger1-8.3 {
execsql {
CREATE TRIGGER "trigger" AFTER INSERT ON t2 BEGIN SELECT 1; END;
SELECT name FROM sqlite_master WHERE type='trigger';
}
} {trigger}
do_test trigger1-8.4 {
execsql {
DROP TRIGGER "trigger";
SELECT name FROM sqlite_master WHERE type='trigger';
}
} {}
do_test trigger1-8.5 {
execsql {
CREATE TRIGGER [trigger] AFTER INSERT ON t2 BEGIN SELECT 1; END;
SELECT name FROM sqlite_master WHERE type='trigger';
}
} {trigger}
do_test trigger1-8.6 {
execsql {
DROP TRIGGER [trigger];
SELECT name FROM sqlite_master WHERE type='trigger';
}
} {}
ifcapable conflict {
# Make sure REPLACE works inside of triggers.
#
# There are two versions of trigger1-9.1 and trigger1-9.2. One that uses
# compound SELECT statements, and another that does not.
ifcapable compound {
do_test trigger1-9.1 {
execsql {
CREATE TABLE t3(a,b);
CREATE TABLE t4(x UNIQUE, b);
CREATE TRIGGER r34 AFTER INSERT ON t3 BEGIN
REPLACE INTO t4 VALUES(new.a,new.b);
END;
INSERT INTO t3 VALUES(1,2);
SELECT * FROM t3 UNION ALL SELECT 99, 99 UNION ALL SELECT * FROM t4;
}
} {1 2 99 99 1 2}
do_test trigger1-9.2 {
execsql {
INSERT INTO t3 VALUES(1,3);
SELECT * FROM t3 UNION ALL SELECT 99, 99 UNION ALL SELECT * FROM t4;
}
} {1 2 1 3 99 99 1 3}
} else {
do_test trigger1-9.1 {
execsql {
CREATE TABLE t3(a,b);
CREATE TABLE t4(x UNIQUE, b);
CREATE TRIGGER r34 AFTER INSERT ON t3 BEGIN
REPLACE INTO t4 VALUES(new.a,new.b);
END;
INSERT INTO t3 VALUES(1,2);
SELECT * FROM t3; SELECT 99, 99; SELECT * FROM t4;
}
} {1 2 99 99 1 2}
do_test trigger1-9.2 {
execsql {
INSERT INTO t3 VALUES(1,3);
SELECT * FROM t3; SELECT 99, 99; SELECT * FROM t4;
}
} {1 2 1 3 99 99 1 3}
}
execsql {
DROP TABLE t3;
DROP TABLE t4;
}
}
# Ticket #764. At one stage TEMP triggers would fail to re-install when the
# schema was reloaded. The following tests ensure that TEMP triggers are
# correctly re-installed.
#
# Also verify that references within trigger programs are resolved at
# statement compile time, not trigger installation time. This means, for
# example, that you can drop and re-create tables referenced by triggers.
ifcapable tempdb&&attach {
do_test trigger1-10.0 {
forcedelete test2.db
forcedelete test2.db-journal
execsql {
ATTACH 'test2.db' AS aux;
}
} {}
do_test trigger1-10.1 {
execsql {
CREATE TABLE main.t4(a, b, c);
CREATE TABLE temp.t4(a, b, c);
CREATE TABLE aux.t4(a, b, c);
CREATE TABLE insert_log(db, a, b, c);
}
} {}
do_test trigger1-10.2 {
execsql {
CREATE TEMP TRIGGER trig1 AFTER INSERT ON main.t4 BEGIN
INSERT INTO insert_log VALUES('main', new.a, new.b, new.c);
END;
CREATE TEMP TRIGGER trig2 AFTER INSERT ON temp.t4 BEGIN
INSERT INTO insert_log VALUES('temp', new.a, new.b, new.c);
END;
CREATE TEMP TRIGGER trig3 AFTER INSERT ON aux.t4 BEGIN
INSERT INTO insert_log VALUES('aux', new.a, new.b, new.c);
END;
}
} {}
do_test trigger1-10.3 {
execsql {
INSERT INTO main.t4 VALUES(1, 2, 3);
INSERT INTO temp.t4 VALUES(4, 5, 6);
INSERT INTO aux.t4 VALUES(7, 8, 9);
}
} {}
do_test trigger1-10.4 {
execsql {
SELECT * FROM insert_log;
}
} {main 1 2 3 temp 4 5 6 aux 7 8 9}
do_test trigger1-10.5 {
execsql {
BEGIN;
INSERT INTO main.t4 VALUES(1, 2, 3);
INSERT INTO temp.t4 VALUES(4, 5, 6);
INSERT INTO aux.t4 VALUES(7, 8, 9);
ROLLBACK;
}
} {}
do_test trigger1-10.6 {
execsql {
SELECT * FROM insert_log;
}
} {main 1 2 3 temp 4 5 6 aux 7 8 9}
do_test trigger1-10.7 {
execsql {
DELETE FROM insert_log;
INSERT INTO main.t4 VALUES(11, 12, 13);
INSERT INTO temp.t4 VALUES(14, 15, 16);
INSERT INTO aux.t4 VALUES(17, 18, 19);
}
} {}
do_test trigger1-10.8 {
execsql {
SELECT * FROM insert_log;
}
} {main 11 12 13 temp 14 15 16 aux 17 18 19}
do_test trigger1-10.9 {
# Drop and re-create the insert_log table in a different database. Note
# that we can change the column names because the trigger programs don't
# use them explicitly.
execsql {
DROP TABLE insert_log;
CREATE TABLE aux.insert_log(db, d, e, f);
}
} {}
do_test trigger1-10.10 {
execsql {
INSERT INTO main.t4 VALUES(21, 22, 23);
INSERT INTO temp.t4 VALUES(24, 25, 26);
INSERT INTO aux.t4 VALUES(27, 28, 29);
}
} {}
do_test trigger1-10.11 {
execsql {
SELECT * FROM insert_log;
}
} {main 21 22 23 temp 24 25 26 aux 27 28 29}
}
do_test trigger1-11.1 {
catchsql {SELECT raise(abort,'message');}
} {1 {RAISE() may only be used within a trigger-program}}
do_test trigger1-15.1 {
execsql {
CREATE TABLE tA(a INTEGER PRIMARY KEY, b, c);
CREATE TRIGGER tA_trigger BEFORE UPDATE ON "tA" BEGIN SELECT 1; END;
INSERT INTO tA VALUES(1, 2, 3);
}
catchsql { UPDATE tA SET a = 'abc' }
} {1 {datatype mismatch}}
do_test trigger1-15.2 {
catchsql { INSERT INTO tA VALUES('abc', 2, 3) }
} {1 {datatype mismatch}}
# Ticket #3947: Do not allow qualified table names on INSERT, UPDATE, and
# DELETE statements within triggers. Actually, this has never been allowed
# by the grammar. But the error message is confusing: one simply gets a
# "syntax error". That has now been changed to give a full error message.
#
do_test trigger1-16.1 {
db eval {
CREATE TABLE t16(a,b,c);
CREATE INDEX t16a ON t16(a);
CREATE INDEX t16b ON t16(b);
}
catchsql {
CREATE TRIGGER main.t16err1 AFTER INSERT ON tA BEGIN
INSERT INTO main.t16 VALUES(1,2,3);
END;
}
} {1 {qualified table names are not allowed on INSERT, UPDATE, and DELETE statements within triggers}}
do_test trigger1-16.2 {
catchsql {
CREATE TRIGGER main.t16err2 AFTER INSERT ON tA BEGIN
UPDATE main.t16 SET rowid=rowid+1;
END;
}
} {1 {qualified table names are not allowed on INSERT, UPDATE, and DELETE statements within triggers}}
do_test trigger1-16.3 {
catchsql {
CREATE TRIGGER main.t16err3 AFTER INSERT ON tA BEGIN
DELETE FROM main.t16;
END;
}
} {1 {qualified table names are not allowed on INSERT, UPDATE, and DELETE statements within triggers}}
do_test trigger1-16.4 {
catchsql {
CREATE TRIGGER main.t16err4 AFTER INSERT ON tA BEGIN
UPDATE t16 NOT INDEXED SET rowid=rowid+1;
END;
}
} {1 {the NOT INDEXED clause is not allowed on UPDATE or DELETE statements within triggers}}
do_test trigger1-16.5 {
catchsql {
CREATE TRIGGER main.t16err5 AFTER INSERT ON tA BEGIN
UPDATE t16 INDEXED BY t16a SET rowid=rowid+1 WHERE a=1;
END;
}
} {1 {the INDEXED BY clause is not allowed on UPDATE or DELETE statements within triggers}}
do_test trigger1-16.6 {
catchsql {
CREATE TRIGGER main.t16err6 AFTER INSERT ON tA BEGIN
DELETE FROM t16 NOT INDEXED WHERE a=123;
END;
}
} {1 {the NOT INDEXED clause is not allowed on UPDATE or DELETE statements within triggers}}
do_test trigger1-16.7 {
catchsql {
CREATE TRIGGER main.t16err7 AFTER INSERT ON tA BEGIN
DELETE FROM t16 INDEXED BY t16a WHERE a=123;
END;
}
} {1 {the INDEXED BY clause is not allowed on UPDATE or DELETE statements within triggers}}
finish_test
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