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+# 2009 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.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix triggerC
+ifcapable {!trigger} {
+ finish_test
+ return
+}
+
+#-------------------------------------------------------------------------
+# Test organization:
+#
+# triggerC-1.*: Haphazardly designed trigger related tests that were useful
+# during an upgrade of the triggers sub-system.
+#
+# triggerC-2.*:
+#
+# triggerC-3.*:
+#
+# triggerC-4.*:
+#
+# triggerC-5.*: Test that when recursive triggers are enabled DELETE
+# triggers are fired when rows are deleted as part of OR
+# REPLACE conflict resolution. And that they are not fired
+# if recursive triggers are not enabled.
+#
+# triggerC-6.*: Test that the recursive_triggers pragma returns correct
+# results when invoked without an argument.
+#
+
+# Enable recursive triggers for this file.
+#
+execsql { PRAGMA recursive_triggers = on }
+
+#sqlite3_db_config_lookaside db 0 0 0
+
+#-------------------------------------------------------------------------
+# This block of tests, triggerC-1.*, are not aimed at any specific
+# property of the triggers sub-system. They were created to debug
+# specific problems while modifying SQLite to support recursive
+# triggers. They are left here in case they can help debug the
+# same problems again.
+#
+do_test triggerC-1.1 {
+ execsql {
+ CREATE TABLE t1(a, b, c);
+ CREATE TABLE log(t, a1, b1, c1, a2, b2, c2);
+ CREATE TRIGGER trig1 BEFORE INSERT ON t1 BEGIN
+ INSERT INTO log VALUES('before', NULL, NULL, NULL, new.a, new.b, new.c);
+ END;
+ CREATE TRIGGER trig2 AFTER INSERT ON t1 BEGIN
+ INSERT INTO log VALUES('after', NULL, NULL, NULL, new.a, new.b, new.c);
+ END;
+ CREATE TRIGGER trig3 BEFORE UPDATE ON t1 BEGIN
+ INSERT INTO log VALUES('before', old.a,old.b,old.c, new.a,new.b,new.c);
+ END;
+ CREATE TRIGGER trig4 AFTER UPDATE ON t1 BEGIN
+ INSERT INTO log VALUES('after', old.a,old.b,old.c, new.a,new.b,new.c);
+ END;
+
+ CREATE TRIGGER trig5 BEFORE DELETE ON t1 BEGIN
+ INSERT INTO log VALUES('before', old.a,old.b,old.c, NULL,NULL,NULL);
+ END;
+ CREATE TRIGGER trig6 AFTER DELETE ON t1 BEGIN
+ INSERT INTO log VALUES('after', old.a,old.b,old.c, NULL,NULL,NULL);
+ END;
+ }
+} {}
+do_test triggerC-1.2 {
+ execsql {
+ INSERT INTO t1 VALUES('A', 'B', 'C');
+ SELECT * FROM log;
+ }
+} {before {} {} {} A B C after {} {} {} A B C}
+do_test triggerC-1.3 {
+ execsql { SELECT * FROM t1 }
+} {A B C}
+do_test triggerC-1.4 {
+ execsql {
+ DELETE FROM log;
+ UPDATE t1 SET a = 'a';
+ SELECT * FROM log;
+ }
+} {before A B C a B C after A B C a B C}
+do_test triggerC-1.5 {
+ execsql { SELECT * FROM t1 }
+} {a B C}
+do_test triggerC-1.6 {
+ execsql {
+ DELETE FROM log;
+ DELETE FROM t1;
+ SELECT * FROM log;
+ }
+} {before a B C {} {} {} after a B C {} {} {}}
+do_test triggerC-1.7 {
+ execsql { SELECT * FROM t1 }
+} {}
+do_test triggerC-1.8 {
+ execsql {
+ CREATE TABLE t4(a, b);
+ CREATE TRIGGER t4t AFTER DELETE ON t4 BEGIN
+ SELECT RAISE(ABORT, 'delete is not supported');
+ END;
+ }
+} {}
+do_test triggerC-1.9 {
+ execsql { INSERT INTO t4 VALUES(1, 2) }
+ catchsql { DELETE FROM t4 }
+} {1 {delete is not supported}}
+do_test triggerC-1.10 {
+ execsql { SELECT * FROM t4 }
+} {1 2}
+do_test triggerC-1.11 {
+ execsql {
+ CREATE TABLE t5 (a primary key, b, c);
+ INSERT INTO t5 values (1, 2, 3);
+ CREATE TRIGGER au_tbl AFTER UPDATE ON t5 BEGIN
+ UPDATE OR IGNORE t5 SET a = new.a, c = 10;
+ END;
+ }
+} {}
+do_test triggerC-1.12 {
+ catchsql { UPDATE OR REPLACE t5 SET a = 4 WHERE a = 1 }
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-1.13 {
+ execsql {
+ CREATE TABLE t6(a INTEGER PRIMARY KEY, b);
+ INSERT INTO t6 VALUES(1, 2);
+ create trigger r1 after update on t6 for each row begin
+ SELECT 1;
+ end;
+ UPDATE t6 SET a=a;
+ }
+} {}
+do_test triggerC-1.14 {
+ execsql {
+ DROP TABLE t1;
+ CREATE TABLE cnt(n);
+ INSERT INTO cnt VALUES(0);
+ CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE, c, d, e);
+ CREATE INDEX t1cd ON t1(c,d);
+ CREATE TRIGGER t1r1 AFTER UPDATE ON t1 BEGIN UPDATE cnt SET n=n+1; END;
+ INSERT INTO t1 VALUES(1,2,3,4,5);
+ INSERT INTO t1 VALUES(6,7,8,9,10);
+ INSERT INTO t1 VALUES(11,12,13,14,15);
+ }
+} {}
+do_test triggerC-1.15 {
+ catchsql { UPDATE OR ROLLBACK t1 SET a=100 }
+} {1 {UNIQUE constraint failed: t1.a}}
+
+
+#-------------------------------------------------------------------------
+# This block of tests, triggerC-2.*, tests that recursive trigger
+# programs (triggers that fire themselves) work. More specifically,
+# this block focuses on recursive INSERT triggers.
+#
+do_test triggerC-2.1.0 {
+ execsql {
+ CREATE TABLE t2(a PRIMARY KEY);
+ }
+} {}
+
+foreach {n tdefn rc} {
+ 1 {
+ CREATE TRIGGER t2_trig AFTER INSERT ON t2 WHEN (new.a>0) BEGIN
+ INSERT INTO t2 VALUES(new.a - 1);
+ END;
+ } {0 {10 9 8 7 6 5 4 3 2 1 0}}
+
+ 2 {
+ CREATE TRIGGER t2_trig AFTER INSERT ON t2 BEGIN
+ SELECT CASE WHEN new.a==2 THEN RAISE(IGNORE) ELSE NULL END;
+ INSERT INTO t2 VALUES(new.a - 1);
+ END;
+ } {0 {10 9 8 7 6 5 4 3 2}}
+
+ 3 {
+ CREATE TRIGGER t2_trig BEFORE INSERT ON t2 WHEN (new.a>0) BEGIN
+ INSERT INTO t2 VALUES(new.a - 1);
+ END;
+ } {0 {0 1 2 3 4 5 6 7 8 9 10}}
+
+ 4 {
+ CREATE TRIGGER t2_trig BEFORE INSERT ON t2 BEGIN
+ SELECT CASE WHEN new.a==2 THEN RAISE(IGNORE) ELSE NULL END;
+ INSERT INTO t2 VALUES(new.a - 1);
+ END;
+ } {0 {3 4 5 6 7 8 9 10}}
+
+ 5 {
+ CREATE TRIGGER t2_trig BEFORE INSERT ON t2 BEGIN
+ INSERT INTO t2 VALUES(new.a - 1);
+ END;
+ } {1 {too many levels of trigger recursion}}
+
+ 6 {
+ CREATE TRIGGER t2_trig AFTER INSERT ON t2 WHEN (new.a>0) BEGIN
+ INSERT OR IGNORE INTO t2 VALUES(new.a);
+ END;
+ } {0 10}
+
+ 7 {
+ CREATE TRIGGER t2_trig BEFORE INSERT ON t2 WHEN (new.a>0) BEGIN
+ INSERT OR IGNORE INTO t2 VALUES(new.a);
+ END;
+ } {1 {too many levels of trigger recursion}}
+} {
+ do_test triggerC-2.1.$n {
+ catchsql { DROP TRIGGER t2_trig }
+ execsql { DELETE FROM t2 }
+ execsql $tdefn
+ catchsql {
+ INSERT INTO t2 VALUES(10);
+ SELECT * FROM t2 ORDER BY rowid;
+ }
+ } $rc
+}
+
+do_test triggerC-2.2 {
+ execsql "
+ CREATE TABLE t22(x);
+
+ CREATE TRIGGER t22a AFTER INSERT ON t22 BEGIN
+ INSERT INTO t22 SELECT x + (SELECT max(x) FROM t22) FROM t22;
+ END;
+ CREATE TRIGGER t22b BEFORE INSERT ON t22 BEGIN
+ SELECT CASE WHEN (SELECT count(*) FROM t22) >= [expr $SQLITE_MAX_TRIGGER_DEPTH / 2]
+ THEN RAISE(IGNORE)
+ ELSE NULL END;
+ END;
+
+ INSERT INTO t22 VALUES(1);
+ SELECT count(*) FROM t22;
+ "
+} [list [expr $SQLITE_MAX_TRIGGER_DEPTH / 2]]
+
+do_test triggerC-2.3 {
+ execsql "
+ CREATE TABLE t23(x PRIMARY KEY);
+
+ CREATE TRIGGER t23a AFTER INSERT ON t23 BEGIN
+ INSERT INTO t23 VALUES(new.x + 1);
+ END;
+
+ CREATE TRIGGER t23b BEFORE INSERT ON t23 BEGIN
+ SELECT CASE WHEN new.x>[expr $SQLITE_MAX_TRIGGER_DEPTH / 2]
+ THEN RAISE(IGNORE)
+ ELSE NULL END;
+ END;
+
+ INSERT INTO t23 VALUES(1);
+ SELECT count(*) FROM t23;
+ "
+} [list [expr $SQLITE_MAX_TRIGGER_DEPTH / 2]]
+
+
+#-----------------------------------------------------------------------
+# This block of tests, triggerC-3.*, test that SQLite throws an exception
+# when it detects excessive recursion.
+#
+do_test triggerC-3.1.1 {
+ execsql {
+ CREATE TABLE t3(a, b);
+ CREATE TRIGGER t3i AFTER INSERT ON t3 BEGIN
+ DELETE FROM t3 WHERE rowid = new.rowid;
+ END;
+ CREATE TRIGGER t3d AFTER DELETE ON t3 BEGIN
+ INSERT INTO t3 VALUES(old.a, old.b);
+ END;
+ }
+} {}
+do_test triggerC-3.1.2 {
+ catchsql { INSERT INTO t3 VALUES(0,0) }
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.1.3 {
+ execsql { SELECT * FROM t3 }
+} {}
+
+do_test triggerC-3.2.1 {
+ execsql "
+ CREATE TABLE t3b(x);
+ CREATE TRIGGER t3bi AFTER INSERT ON t3b WHEN new.x<[expr $SQLITE_MAX_TRIGGER_DEPTH * 2] BEGIN
+ INSERT INTO t3b VALUES(new.x+1);
+ END;
+ "
+ catchsql {
+ INSERT INTO t3b VALUES(1);
+ }
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.2.2 {
+ db eval {SELECT * FROM t3b}
+} {}
+
+do_test triggerC-3.3.1 {
+ catchsql "
+ INSERT INTO t3b VALUES([expr $SQLITE_MAX_TRIGGER_DEPTH + 1]);
+ "
+} {0 {}}
+do_test triggerC-3.3.2 {
+ db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} [list $SQLITE_MAX_TRIGGER_DEPTH [expr $SQLITE_MAX_TRIGGER_DEPTH * 2] [expr $SQLITE_MAX_TRIGGER_DEPTH + 1]]
+
+do_test triggerC-3.4.1 {
+ catchsql "
+ DELETE FROM t3b;
+ INSERT INTO t3b VALUES([expr $SQLITE_MAX_TRIGGER_DEPTH - 1]);
+ "
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.4.2 {
+ db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} {0 {} {}}
+
+do_test triggerC-3.5.1 {
+ sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH [expr $SQLITE_MAX_TRIGGER_DEPTH / 10]
+ catchsql "
+ INSERT INTO t3b VALUES([expr ($SQLITE_MAX_TRIGGER_DEPTH * 2) - ($SQLITE_MAX_TRIGGER_DEPTH / 10) + 1]);
+ "
+} {0 {}}
+do_test triggerC-3.5.2 {
+ db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} [list [expr $SQLITE_MAX_TRIGGER_DEPTH / 10] [expr $SQLITE_MAX_TRIGGER_DEPTH * 2] [expr ($SQLITE_MAX_TRIGGER_DEPTH * 2) - ($SQLITE_MAX_TRIGGER_DEPTH / 10) + 1]]
+
+do_test triggerC-3.5.3 {
+ catchsql "
+ DELETE FROM t3b;
+ INSERT INTO t3b VALUES([expr ($SQLITE_MAX_TRIGGER_DEPTH * 2) - ($SQLITE_MAX_TRIGGER_DEPTH / 10)]);
+ "
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.5.4 {
+ db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} {0 {} {}}
+
+do_test triggerC-3.6.1 {
+ sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH 1
+ catchsql "
+ INSERT INTO t3b VALUES([expr $SQLITE_MAX_TRIGGER_DEPTH * 2]);
+ "
+} {0 {}}
+do_test triggerC-3.6.2 {
+ db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} [list 1 [expr $SQLITE_MAX_TRIGGER_DEPTH * 2] [expr $SQLITE_MAX_TRIGGER_DEPTH * 2]]
+
+do_test triggerC-3.6.3 {
+ catchsql "
+ DELETE FROM t3b;
+ INSERT INTO t3b VALUES([expr ($SQLITE_MAX_TRIGGER_DEPTH * 2) - 1]);
+ "
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.6.4 {
+ db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} {0 {} {}}
+sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH $SQLITE_MAX_TRIGGER_DEPTH
+
+
+#-----------------------------------------------------------------------
+# This next block of tests, triggerC-4.*, checks that affinity
+# transformations and constraint processing is performed at the correct
+# times relative to BEFORE and AFTER triggers.
+#
+# For an INSERT statement, for each row to be inserted:
+#
+# 1. Apply affinities to non-rowid values to be inserted.
+# 2. Fire BEFORE triggers.
+# 3. Process constraints.
+# 4. Insert new record.
+# 5. Fire AFTER triggers.
+#
+# If the value of the rowid field is to be automatically assigned, it is
+# set to -1 in the new.* record. Even if it is explicitly set to NULL
+# by the INSERT statement.
+#
+# For an UPDATE statement, for each row to be deleted:
+#
+# 1. Apply affinities to non-rowid values to be inserted.
+# 2. Fire BEFORE triggers.
+# 3. Process constraints.
+# 4. Insert new record.
+# 5. Fire AFTER triggers.
+#
+# For a DELETE statement, for each row to be deleted:
+#
+# 1. Fire BEFORE triggers.
+# 2. Remove database record.
+# 3. Fire AFTER triggers.
+#
+# When a numeric value that as an exact integer representation is stored
+# in a column with REAL affinity, it is actually stored as an integer.
+# These tests check that the typeof() such values is always 'real',
+# not 'integer'.
+#
+# triggerC-4.1.*: Check that affinity transformations are made before
+# triggers are invoked.
+#
+do_test triggerC-4.1.1 {
+ catchsql { DROP TABLE log }
+ catchsql { DROP TABLE t4 }
+ execsql {
+ CREATE TABLE log(t);
+ CREATE TABLE t4(a TEXT,b INTEGER,c REAL);
+ CREATE TRIGGER t4bi BEFORE INSERT ON t4 BEGIN
+ INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+ new.a || ' ' || typeof(new.a) || ' ' ||
+ new.b || ' ' || typeof(new.b) || ' ' ||
+ new.c || ' ' || typeof(new.c)
+ );
+ END;
+ CREATE TRIGGER t4ai AFTER INSERT ON t4 BEGIN
+ INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+ new.a || ' ' || typeof(new.a) || ' ' ||
+ new.b || ' ' || typeof(new.b) || ' ' ||
+ new.c || ' ' || typeof(new.c)
+ );
+ END;
+ CREATE TRIGGER t4bd BEFORE DELETE ON t4 BEGIN
+ INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+ old.a || ' ' || typeof(old.a) || ' ' ||
+ old.b || ' ' || typeof(old.b) || ' ' ||
+ old.c || ' ' || typeof(old.c)
+ );
+ END;
+ CREATE TRIGGER t4ad AFTER DELETE ON t4 BEGIN
+ INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+ old.a || ' ' || typeof(old.a) || ' ' ||
+ old.b || ' ' || typeof(old.b) || ' ' ||
+ old.c || ' ' || typeof(old.c)
+ );
+ END;
+ CREATE TRIGGER t4bu BEFORE UPDATE ON t4 BEGIN
+ INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+ old.a || ' ' || typeof(old.a) || ' ' ||
+ old.b || ' ' || typeof(old.b) || ' ' ||
+ old.c || ' ' || typeof(old.c)
+ );
+ INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+ new.a || ' ' || typeof(new.a) || ' ' ||
+ new.b || ' ' || typeof(new.b) || ' ' ||
+ new.c || ' ' || typeof(new.c)
+ );
+ END;
+ CREATE TRIGGER t4au AFTER UPDATE ON t4 BEGIN
+ INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+ old.a || ' ' || typeof(old.a) || ' ' ||
+ old.b || ' ' || typeof(old.b) || ' ' ||
+ old.c || ' ' || typeof(old.c)
+ );
+ INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+ new.a || ' ' || typeof(new.a) || ' ' ||
+ new.b || ' ' || typeof(new.b) || ' ' ||
+ new.c || ' ' || typeof(new.c)
+ );
+ END;
+ }
+} {}
+foreach {n insert log} {
+
+ 2 {
+ INSERT INTO t4 VALUES('1', '1', '1');
+ DELETE FROM t4;
+ } {
+ -1 integer 1 text 1 integer 1.0 real
+ 1 integer 1 text 1 integer 1.0 real
+ 1 integer 1 text 1 integer 1.0 real
+ 1 integer 1 text 1 integer 1.0 real
+ }
+
+ 3 {
+ INSERT INTO t4(rowid,a,b,c) VALUES(45, 45, 45, 45);
+ DELETE FROM t4;
+ } {
+ 45 integer 45 text 45 integer 45.0 real
+ 45 integer 45 text 45 integer 45.0 real
+ 45 integer 45 text 45 integer 45.0 real
+ 45 integer 45 text 45 integer 45.0 real
+ }
+
+ 4 {
+ INSERT INTO t4(rowid,a,b,c) VALUES(-42.0, -42.0, -42.0, -42.0);
+ DELETE FROM t4;
+ } {
+ -42 integer -42.0 text -42 integer -42.0 real
+ -42 integer -42.0 text -42 integer -42.0 real
+ -42 integer -42.0 text -42 integer -42.0 real
+ -42 integer -42.0 text -42 integer -42.0 real
+ }
+
+ 5 {
+ INSERT INTO t4(rowid,a,b,c) VALUES(NULL, -42.4, -42.4, -42.4);
+ DELETE FROM t4;
+ } {
+ -1 integer -42.4 text -42.4 real -42.4 real
+ 1 integer -42.4 text -42.4 real -42.4 real
+ 1 integer -42.4 text -42.4 real -42.4 real
+ 1 integer -42.4 text -42.4 real -42.4 real
+ }
+
+ 6 {
+ INSERT INTO t4 VALUES(7, 7, 7);
+ UPDATE t4 SET a=8, b=8, c=8;
+ } {
+ -1 integer 7 text 7 integer 7.0 real
+ 1 integer 7 text 7 integer 7.0 real
+ 1 integer 7 text 7 integer 7.0 real
+ 1 integer 8 text 8 integer 8.0 real
+ 1 integer 7 text 7 integer 7.0 real
+ 1 integer 8 text 8 integer 8.0 real
+ }
+
+ 7 {
+ UPDATE t4 SET rowid=2;
+ } {
+ 1 integer 8 text 8 integer 8.0 real
+ 2 integer 8 text 8 integer 8.0 real
+ 1 integer 8 text 8 integer 8.0 real
+ 2 integer 8 text 8 integer 8.0 real
+ }
+
+ 8 {
+ UPDATE t4 SET a='9', b='9', c='9';
+ } {
+ 2 integer 8 text 8 integer 8.0 real
+ 2 integer 9 text 9 integer 9.0 real
+ 2 integer 8 text 8 integer 8.0 real
+ 2 integer 9 text 9 integer 9.0 real
+ }
+
+ 9 {
+ UPDATE t4 SET a='9.1', b='9.1', c='9.1';
+ } {
+ 2 integer 9 text 9 integer 9.0 real
+ 2 integer 9.1 text 9.1 real 9.1 real
+ 2 integer 9 text 9 integer 9.0 real
+ 2 integer 9.1 text 9.1 real 9.1 real
+ }
+} {
+ do_test triggerC-4.1.$n {
+ eval concat [execsql "
+ DELETE FROM log;
+ $insert ;
+ SELECT * FROM log ORDER BY rowid;
+ "]
+ } [join $log " "]
+}
+
+#-------------------------------------------------------------------------
+# This block of tests, triggerC-5.*, test that DELETE triggers are fired
+# if a row is deleted as a result of OR REPLACE conflict resolution.
+#
+do_test triggerC-5.1.0 {
+ execsql {
+ DROP TABLE IF EXISTS t5;
+ CREATE TABLE t5(a INTEGER PRIMARY KEY, b);
+ CREATE UNIQUE INDEX t5i ON t5(b);
+ INSERT INTO t5 VALUES(1, 'a');
+ INSERT INTO t5 VALUES(2, 'b');
+ INSERT INTO t5 VALUES(3, 'c');
+
+ CREATE TABLE t5g(a, b, c);
+ CREATE TRIGGER t5t BEFORE DELETE ON t5 BEGIN
+ INSERT INTO t5g VALUES(old.a, old.b, (SELECT count(*) FROM t5));
+ END;
+ }
+} {}
+foreach {n dml t5g t5} {
+ 1 "DELETE FROM t5 WHERE a=2" {2 b 3} {1 a 3 c}
+ 2 "INSERT OR REPLACE INTO t5 VALUES(2, 'd')" {2 b 3} {1 a 2 d 3 c}
+ 3 "UPDATE OR REPLACE t5 SET a = 2 WHERE a = 3" {2 b 3} {1 a 2 c}
+ 4 "INSERT OR REPLACE INTO t5 VALUES(4, 'b')" {2 b 3} {1 a 3 c 4 b}
+ 5 "UPDATE OR REPLACE t5 SET b = 'b' WHERE b = 'c'" {2 b 3} {1 a 3 b}
+ 6 "INSERT OR REPLACE INTO t5 VALUES(2, 'c')" {2 b 3 3 c 2} {1 a 2 c}
+ 7 "UPDATE OR REPLACE t5 SET a=1, b='b' WHERE a = 3" {1 a 3 2 b 2} {1 b}
+} {
+ do_test triggerC-5.1.$n {
+ execsql "
+ BEGIN;
+ $dml ;
+ SELECT * FROM t5g ORDER BY rowid;
+ SELECT * FROM t5 ORDER BY rowid;
+ ROLLBACK;
+ "
+ } [concat $t5g $t5]
+}
+do_test triggerC-5.2.0 {
+ execsql {
+ DROP TRIGGER t5t;
+ CREATE TRIGGER t5t AFTER DELETE ON t5 BEGIN
+ INSERT INTO t5g VALUES(old.a, old.b, (SELECT count(*) FROM t5));
+ END;
+ }
+} {}
+foreach {n dml t5g t5} {
+ 1 "DELETE FROM t5 WHERE a=2" {2 b 2} {1 a 3 c}
+ 2 "INSERT OR REPLACE INTO t5 VALUES(2, 'd')" {2 b 2} {1 a 2 d 3 c}
+ 3 "UPDATE OR REPLACE t5 SET a = 2 WHERE a = 3" {2 b 2} {1 a 2 c}
+ 4 "INSERT OR REPLACE INTO t5 VALUES(4, 'b')" {2 b 2} {1 a 3 c 4 b}
+ 5 "UPDATE OR REPLACE t5 SET b = 'b' WHERE b = 'c'" {2 b 2} {1 a 3 b}
+ 6 "INSERT OR REPLACE INTO t5 VALUES(2, 'c')" {2 b 2 3 c 1} {1 a 2 c}
+ 7 "UPDATE OR REPLACE t5 SET a=1, b='b' WHERE a = 3" {1 a 2 2 b 1} {1 b}
+} {
+ do_test triggerC-5.2.$n {
+ execsql "
+ BEGIN;
+ $dml ;
+ SELECT * FROM t5g ORDER BY rowid;
+ SELECT * FROM t5 ORDER BY rowid;
+ ROLLBACK;
+ "
+ } [concat $t5g $t5]
+}
+do_test triggerC-5.3.0 {
+ execsql { PRAGMA recursive_triggers = off }
+} {}
+foreach {n dml t5g t5} {
+ 1 "DELETE FROM t5 WHERE a=2" {2 b 2} {1 a 3 c}
+ 2 "INSERT OR REPLACE INTO t5 VALUES(2, 'd')" {} {1 a 2 d 3 c}
+ 3 "UPDATE OR REPLACE t5 SET a = 2 WHERE a = 3" {} {1 a 2 c}
+ 4 "INSERT OR REPLACE INTO t5 VALUES(4, 'b')" {} {1 a 3 c 4 b}
+ 5 "UPDATE OR REPLACE t5 SET b = 'b' WHERE b = 'c'" {} {1 a 3 b}
+ 6 "INSERT OR REPLACE INTO t5 VALUES(2, 'c')" {} {1 a 2 c}
+ 7 "UPDATE OR REPLACE t5 SET a=1, b='b' WHERE a = 3" {} {1 b}
+} {
+ do_test triggerC-5.3.$n {
+ execsql "
+ BEGIN;
+ $dml ;
+ SELECT * FROM t5g ORDER BY rowid;
+ SELECT * FROM t5 ORDER BY rowid;
+ ROLLBACK;
+ "
+ } [concat $t5g $t5]
+}
+do_test triggerC-5.3.8 {
+ execsql { PRAGMA recursive_triggers = on }
+} {}
+
+#-------------------------------------------------------------------------
+# This block of tests, triggerC-6.*, tests that "PRAGMA recursive_triggers"
+# statements return the current value of the recursive triggers flag.
+#
+do_test triggerC-6.1 {
+ execsql { PRAGMA recursive_triggers }
+} {1}
+do_test triggerC-6.2 {
+ execsql {
+ PRAGMA recursive_triggers = off;
+ PRAGMA recursive_triggers;
+ }
+} {0}
+do_test triggerC-6.3 {
+ execsql {
+ PRAGMA recursive_triggers = on;
+ PRAGMA recursive_triggers;
+ }
+} {1}
+
+#-------------------------------------------------------------------------
+# Test some of the "undefined behaviour" associated with triggers. The
+# undefined behaviour occurs when a row being updated or deleted is
+# manipulated by a BEFORE trigger.
+#
+do_test triggerC-7.1 {
+ execsql {
+ CREATE TABLE t8(x);
+ CREATE TABLE t7(a, b);
+ INSERT INTO t7 VALUES(1, 2);
+ INSERT INTO t7 VALUES(3, 4);
+ INSERT INTO t7 VALUES(5, 6);
+ CREATE TRIGGER t7t BEFORE UPDATE ON t7 BEGIN
+ DELETE FROM t7 WHERE a = 1;
+ END;
+ CREATE TRIGGER t7ta AFTER UPDATE ON t7 BEGIN
+ INSERT INTO t8 VALUES('after fired ' || old.rowid || '->' || new.rowid);
+ END;
+ }
+} {}
+do_test triggerC-7.2 {
+ execsql {
+ BEGIN;
+ UPDATE t7 SET b=7 WHERE a = 5;
+ SELECT * FROM t7;
+ SELECT * FROM t8;
+ ROLLBACK;
+ }
+} {3 4 5 7 {after fired 3->3}}
+do_test triggerC-7.3 {
+ execsql {
+ BEGIN;
+ UPDATE t7 SET b=7 WHERE a = 1;
+ SELECT * FROM t7;
+ SELECT * FROM t8;
+ ROLLBACK;
+ }
+} {3 4 5 6}
+
+do_test triggerC-7.4 {
+ execsql {
+ DROP TRIGGER t7t;
+ CREATE TRIGGER t7t BEFORE UPDATE ON t7 WHEN (old.rowid!=1 OR new.rowid!=8)
+ BEGIN
+ UPDATE t7 set rowid = 8 WHERE rowid=1;
+ END;
+ }
+} {}
+do_test triggerC-7.5 {
+ execsql {
+ BEGIN;
+ UPDATE t7 SET b=7 WHERE a = 5;
+ SELECT rowid, * FROM t7;
+ SELECT * FROM t8;
+ ROLLBACK;
+ }
+} {2 3 4 3 5 7 8 1 2 {after fired 1->8} {after fired 3->3}}
+do_test triggerC-7.6 {
+ execsql {
+ BEGIN;
+ UPDATE t7 SET b=7 WHERE a = 1;
+ SELECT rowid, * FROM t7;
+ SELECT * FROM t8;
+ ROLLBACK;
+ }
+} {2 3 4 3 5 6 8 1 2 {after fired 1->8}}
+
+do_test triggerC-7.7 {
+ execsql {
+ DROP TRIGGER t7t;
+ DROP TRIGGER t7ta;
+ CREATE TRIGGER t7t BEFORE DELETE ON t7 BEGIN
+ UPDATE t7 set rowid = 8 WHERE rowid=1;
+ END;
+ CREATE TRIGGER t7ta AFTER DELETE ON t7 BEGIN
+ INSERT INTO t8 VALUES('after fired ' || old.rowid);
+ END;
+ }
+} {}
+do_test triggerC-7.8 {
+ execsql {
+ BEGIN;
+ DELETE FROM t7 WHERE a = 3;
+ SELECT rowid, * FROM t7;
+ SELECT * FROM t8;
+ ROLLBACK;
+ }
+} {3 5 6 8 1 2 {after fired 2}}
+do_test triggerC-7.9 {
+ execsql {
+ BEGIN;
+ DELETE FROM t7 WHERE a = 1;
+ SELECT rowid, * FROM t7;
+ SELECT * FROM t8;
+ ROLLBACK;
+ }
+} {2 3 4 3 5 6 8 1 2}
+
+# Ticket [e25d9ea771febc9c311928c1c01c3163dcb26643]
+#
+do_test triggerC-9.1 {
+ execsql {
+ CREATE TABLE t9(a,b);
+ CREATE INDEX t9b ON t9(b);
+ INSERT INTO t9 VALUES(1,0);
+ INSERT INTO t9 VALUES(2,1);
+ INSERT INTO t9 VALUES(3,2);
+ INSERT INTO t9 SELECT a+3, a+2 FROM t9;
+ INSERT INTO t9 SELECT a+6, a+5 FROM t9;
+ SELECT a FROM t9 ORDER BY a;
+ }
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+do_test triggerC-9.2 {
+ execsql {
+ CREATE TRIGGER t9r1 AFTER DELETE ON t9 BEGIN
+ DELETE FROM t9 WHERE b=old.a;
+ END;
+ DELETE FROM t9 WHERE b=4;
+ SELECT a FROM t9 ORDER BY a;
+ }
+} {1 2 3 4}
+
+# At one point (between versions 3.6.18 and 3.6.20 inclusive), an UPDATE
+# that fired a BEFORE trigger that itself updated the same row as the
+# statement causing it to fire was causing a strange side-effect: The
+# values updated by the statement within the trigger were being overwritten
+# by the values in the new.* array, even if those values were not
+# themselves written by the parent UPDATE statement.
+#
+# Technically speaking this was not a bug. The SQLite documentation says
+# that if a BEFORE UPDATE or BEFORE DELETE trigger modifies or deletes the
+# row that the parent statement is operating on the results are undefined.
+# But as of 3.6.21 behaviour is restored to the way it was in versions
+# 3.6.17 and earlier to avoid causing unnecessary difficulties.
+#
+do_test triggerC-10.1 {
+ execsql {
+ CREATE TABLE t10(a, updatecnt DEFAULT 0);
+ CREATE TRIGGER t10_bu BEFORE UPDATE OF a ON t10 BEGIN
+ UPDATE t10 SET updatecnt = updatecnt+1 WHERE rowid = old.rowid;
+ END;
+ INSERT INTO t10(a) VALUES('hello');
+ }
+
+ # Before the problem was fixed, table t10 would contain the tuple
+ # (world, 0) after running the following script (because the value
+ # 1 written to column "updatecnt" was clobbered by the old value 0).
+ #
+ execsql {
+ UPDATE t10 SET a = 'world';
+ SELECT * FROM t10;
+ }
+} {world 1}
+
+do_test triggerC-10.2 {
+ execsql {
+ UPDATE t10 SET a = 'tcl', updatecnt = 5;
+ SELECT * FROM t10;
+ }
+} {tcl 5}
+
+do_test triggerC-10.3 {
+ execsql {
+ CREATE TABLE t11(
+ c1, c2, c3, c4, c5, c6, c7, c8, c9, c10,
+ c11, c12, c13, c14, c15, c16, c17, c18, c19, c20,
+ c21, c22, c23, c24, c25, c26, c27, c28, c29, c30,
+ c31, c32, c33, c34, c35, c36, c37, c38, c39, c40
+ );
+
+ CREATE TRIGGER t11_bu BEFORE UPDATE OF c1 ON t11 BEGIN
+ UPDATE t11 SET c31 = c31+1, c32=c32+1 WHERE rowid = old.rowid;
+ END;
+
+ INSERT INTO t11 VALUES(
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+ 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
+ 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40
+ );
+ }
+
+ # Before the problem was fixed, table t10 would contain the tuple
+ # (world, 0) after running the following script (because the value
+ # 1 written to column "updatecnt" was clobbered by the old value 0).
+ #
+ execsql {
+ UPDATE t11 SET c4=35, c33=22, c1=5;
+ SELECT * FROM t11;
+ }
+} {5 2 3 35 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 32 33 22 34 35 36 37 38 39 40}
+
+#-------------------------------------------------------------------------
+# Test that bug [371bab5d65] has been fixed. BEFORE INSERT and INSTEAD OF
+# INSERT triggers with the DEFAULT VALUES INSERT syntax.
+#
+do_test triggerC-11.0 {
+ catchsql { DROP TABLE log }
+ execsql { CREATE TABLE log(a, b) }
+} {}
+
+foreach {testno tbl defaults} {
+ 1 "CREATE TABLE t1(a, b)" {{} {}}
+ 2 "CREATE TABLE t1(a DEFAULT 1, b DEFAULT 'abc')" {1 abc}
+ 3 "CREATE TABLE t1(a, b DEFAULT 4.5)" {{} 4.5}
+} {
+ do_test triggerC-11.$testno.1 {
+ catchsql { DROP TABLE t1 }
+ execsql { DELETE FROM log }
+ execsql $tbl
+ execsql {
+ CREATE TRIGGER tt1 BEFORE INSERT ON t1 BEGIN
+ INSERT INTO log VALUES(new.a, new.b);
+ END;
+ INSERT INTO t1 DEFAULT VALUES;
+ SELECT * FROM log;
+ }
+ } $defaults
+
+ do_test triggerC-11.$testno.2 {
+ execsql { DELETE FROM log }
+ execsql {
+ CREATE TRIGGER tt2 AFTER INSERT ON t1 BEGIN
+ INSERT INTO log VALUES(new.a, new.b);
+ END;
+ INSERT INTO t1 DEFAULT VALUES;
+ SELECT * FROM log;
+ }
+ } [concat $defaults $defaults]
+
+ do_test triggerC-11.$testno.3 {
+ execsql { DROP TRIGGER tt1 }
+ execsql { DELETE FROM log }
+ execsql {
+ INSERT INTO t1 DEFAULT VALUES;
+ SELECT * FROM log;
+ }
+ } $defaults
+}
+do_test triggerC-11.4 {
+ catchsql { DROP TABLE t2 }
+ execsql {
+ DELETE FROM log;
+ CREATE TABLE t2(a, b);
+ CREATE VIEW v2 AS SELECT * FROM t2;
+ CREATE TRIGGER tv2 INSTEAD OF INSERT ON v2 BEGIN
+ INSERT INTO log VALUES(new.a, new.b);
+ END;
+ INSERT INTO v2 DEFAULT VALUES;
+ SELECT a, b, a IS NULL, b IS NULL FROM log;
+ }
+} {{} {} 1 1}
+
+do_test triggerC-12.1 {
+ db close
+ forcedelete test.db
+ sqlite3 db test.db
+
+ execsql {
+ CREATE TABLE t1(a, b);
+ INSERT INTO t1 VALUES(1, 2);
+ INSERT INTO t1 VALUES(3, 4);
+ INSERT INTO t1 VALUES(5, 6);
+ CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN SELECT 1 ; END ;
+ SELECT count(*) FROM sqlite_master;
+ }
+} {2}
+do_test triggerC-12.2 {
+ db eval { SELECT * FROM t1 } {
+ if {$a == 3} { execsql { DROP TRIGGER tr1 } }
+ }
+ execsql { SELECT count(*) FROM sqlite_master }
+} {1}
+
+do_execsql_test triggerC-13.1 {
+ PRAGMA recursive_triggers = ON;
+ CREATE TABLE t12(a, b);
+ INSERT INTO t12 VALUES(1, 2);
+ CREATE TRIGGER tr12 AFTER UPDATE ON t12 BEGIN
+ UPDATE t12 SET a=new.a+1, b=new.b+1;
+ END;
+} {}
+do_catchsql_test triggerC-13.2 {
+ UPDATE t12 SET a=a+1, b=b+1;
+} {1 {too many levels of trigger recursion}}
+
+#-------------------------------------------------------------------------
+# The following tests seek to verify that constant values (i.e. literals)
+# are not factored out of loops within trigger programs. SQLite does
+# not factor constants out of loops within trigger programs as it may only
+# do so in code generated before the first table or index is opened. And
+# by the time a trigger program is coded, at least one table or index has
+# always been opened.
+#
+# At one point, due to a bug allowing constant factoring within triggers,
+# the following SQL would produce the wrong result.
+#
+set SQL {
+ CREATE TABLE t1(a, b, c);
+ CREATE INDEX i1 ON t1(a, c);
+ CREATE INDEX i2 ON t1(b, c);
+ INSERT INTO t1 VALUES(1, 2, 3);
+
+ CREATE TABLE t2(e, f);
+ CREATE INDEX i3 ON t2(e);
+ INSERT INTO t2 VALUES(1234567, 3);
+
+ CREATE TABLE empty(x);
+ CREATE TABLE not_empty(x);
+ INSERT INTO not_empty VALUES(2);
+
+ CREATE TABLE t4(x);
+ CREATE TABLE t5(g, h, i);
+
+ CREATE TRIGGER trig BEFORE INSERT ON t4 BEGIN
+ INSERT INTO t5 SELECT * FROM t1 WHERE
+ (a IN (SELECT x FROM empty) OR b IN (SELECT x FROM not_empty))
+ AND c IN (SELECT f FROM t2 WHERE e=1234567);
+ END;
+
+ INSERT INTO t4 VALUES(0);
+ SELECT * FROM t5;
+}
+
+reset_db
+do_execsql_test triggerC-14.1 $SQL {1 2 3}
+reset_db
+optimization_control db factor-constants 0
+do_execsql_test triggerC-14.2 $SQL {1 2 3}
+
+#-------------------------------------------------------------------------
+# Check that table names used by trigger programs are dequoted exactly
+# once.
+#
+do_execsql_test 15.1.1 {
+ PRAGMA recursive_triggers = 1;
+ CREATE TABLE node(
+ id int not null primary key,
+ pid int not null default 0 references node,
+ key varchar not null,
+ path varchar default '',
+ unique(pid, key)
+ );
+ CREATE TRIGGER node_delete_referencing AFTER DELETE ON "node"
+ BEGIN
+ DELETE FROM "node" WHERE pid = old."id";
+ END;
+}
+do_execsql_test 15.1.2 {
+ INSERT INTO node(id, pid, key) VALUES(9, 0, 'test');
+ INSERT INTO node(id, pid, key) VALUES(90, 9, 'test1');
+ INSERT INTO node(id, pid, key) VALUES(900, 90, 'test2');
+ DELETE FROM node WHERE id=9;
+ SELECT * FROM node;
+}
+
+do_execsql_test 15.2.1 {
+ CREATE TABLE x1 (x);
+
+ CREATE TABLE x2 (a, b);
+ CREATE TABLE '"x2"'(a, b);
+
+ INSERT INTO x2 VALUES(1, 2);
+ INSERT INTO x2 VALUES(3, 4);
+ INSERT INTO '"x2"' SELECT * FROM x2;
+
+ CREATE TRIGGER x1ai AFTER INSERT ON x1 BEGIN
+ INSERT INTO """x2""" VALUES('x', 'y');
+ DELETE FROM """x2""" WHERE a=1;
+ UPDATE """x2""" SET b = 11 WHERE a = 3;
+ END;
+
+ INSERT INTO x1 VALUES('go!');
+}
+
+do_execsql_test 15.2.2 { SELECT * FROM x2; } {1 2 3 4}
+do_execsql_test 15.2.3 { SELECT * FROM """x2"""; } {3 11 x y}
+
+#-------------------------------------------------------------------------
+# At one point queries such as the following were causing segfaults.
+#
+do_catchsql_test 16.1 {
+ SELECT raise(ABORT, 'msg') FROM sqlite_master
+ UNION SELECT 1
+ ORDER BY raise(IGNORE);
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+do_catchsql_test 16.2 {
+ SELECT count(*) FROM sqlite_master
+ GROUP BY raise(IGNORE)
+ HAVING raise(ABORT, 'msg');
+} {1 {RAISE() may only be used within a trigger-program}}
+
+#-------------------------------------------------------------------------
+# Datatype mismatch on IPK when there are BEFORE triggers.
+#
+do_execsql_test 17.0 {
+ CREATE TABLE xyz(x INTEGER PRIMARY KEY, y, z);
+ CREATE TRIGGER xyz_tr BEFORE INSERT ON xyz BEGIN
+ SELECT new.x;
+ END;
+}
+do_catchsql_test 17.1 {
+ INSERT INTO xyz VALUES('hello', 2, 3);
+} {1 {datatype mismatch}}
+
+
+finish_test