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# 2009 August 1
#
# 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.
#
#***********************************************************************
#
# Tests to make sure #3810 is fixed.
#
# $Id: tkt3810.test,v 1.4 2009/08/06 17:43:31 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
ifcapable {!trigger} {
finish_test
return
}
# Create a table using the first database connection.
#
do_test tkt3810-1.1 {
execsql {
CREATE TABLE t1(x);
INSERT INTO t1 VALUES(123);
SELECT * FROM t1;
CREATE TABLE t2(y);
CREATE TABLE t3(z);
}
} 123
# Create a second connection to the same database. Make sure the
# schema of the database has been parsed by the second connection.
#
do_test tkt3810-2 {
sqlite3 db2 test.db
execsql {
SELECT * FROM t1;
} db2
} 123
# DROP the table using the second connection. The table no longer exists
# but the first connection does not yet know this. Then try to create a TEMP
# trigger in the first connection that references the table that was dropped.
#
do_test tkt3810-3 {
execsql {DROP TABLE t1} db2
execsql {
CREATE TEMP TRIGGER r1 AFTER INSERT ON t1 BEGIN
INSERT INTO t2 VALUES(new.rowid);
END;
}
catchsql {
SELECT * FROM t3;
}
} {0 {}}
# Trigger still exists in the sqlite_temp_master table, but now it is
# an orphan.
#
do_test tkt3810-4 {
execsql {SELECT name FROM temp.sqlite_master ORDER BY name}
} {r1}
# Because it is an orphan, it cannot be dropped.
#
do_test tkt3810-5 {
catchsql {DROP TRIGGER r1}
} {1 {no such trigger: r1}}
# Create a table t1 then drop the table in order to drop the orphaned
# trigger.
#
do_test tkt3810-6 {
execsql {CREATE TABLE t1(x)} db2
execsql {DROP TABLE t1}
execsql {
SELECT name FROM sqlite_temp_master;
}
} {}
db2 close
# 2020-11-06 forum post https://sqlite.org/forum/forumpost/157dc791df
#
reset_db
do_test tkt3810-100 {
db eval {
ATTACH ':memory:' AS aux1;
CREATE TABLE aux1.t1(x);
CREATE TEMP TRIGGER r1 DELETE ON t1 BEGIN SELECT *; END;
CREATE VIEW t1 AS SELECT *;
}
catch {db eval {
CREATE VIRTUAL TABLE t2 USING nosuchmodule;
}}
db eval {CREATE TABLE t3(z);}
} {}
finish_test
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