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# 2010 Jun 28
#
# 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.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
source $testdir/malloc_common.tcl
source $testdir/lock_common.tcl
# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
ifcapable !altertable {
finish_test
return
}
# This block tests that if one client modifies the database schema, a
# second client updates its internal cache of the database schema before
# executing any queries. Specifically, it does not return a "no such column"
# or "no such table" error if the table or column in question does exist
# but was added after the second client loaded its cache of the database
# schema.
#
# Types of schema modifications:
#
# 1. Adding a database table.
# 2. Adding a database view.
# 3. Adding a database index.
# 4. Adding a database trigger.
# 5. Adding a column to an existing table (ALTER TABLE).
#
do_multiclient_test tn {
# Have connections [db1] and [db2] load the current database schema.
#
sql1 { SELECT * FROM sqlite_master }
sql2 { SELECT * FROM sqlite_master }
foreach {tn2 c1 c2} {
1 { CREATE TABLE t1(a, b) } { SELECT * FROM t1 }
2 { CREATE TABLE t2(a, b) } { UPDATE t2 SET a = b }
3 { CREATE TABLE t3(a, b) } { DELETE FROM t3 }
4 { CREATE TABLE t4(a, b) } { INSERT INTO t4 VALUES(1, 2) }
5 { CREATE TABLE t5(a, b) } { DROP TABLE t5 }
6 { CREATE TABLE t6(a, b) } { CREATE INDEX i1 ON t6(a) }
7 { ALTER TABLE t1 ADD COLUMN c } { SELECT a, b, c FROM t1 }
8 { ALTER TABLE t2 ADD COLUMN c } { UPDATE t2 SET a = c }
9 { ALTER TABLE t2 ADD COLUMN d } { UPDATE t2 SET d = c }
10 { ALTER TABLE t3 ADD COLUMN c } { DELETE FROM t3 WHERE c>10 }
11 { ALTER TABLE t4 ADD COLUMN c } { INSERT INTO t4(a,b,c) VALUES(1,2,3) }
12 { ALTER TABLE t6 ADD COLUMN c } { CREATE INDEX i2 ON t6(c) }
13 { ALTER TABLE t6 ADD COLUMN d } {
CREATE TRIGGER tr1 AFTER UPDATE OF d ON t6 BEGIN
SELECT 1, 2, 3;
END;
}
14 { CREATE INDEX i3 ON t1(a) } { DROP INDEX i3 }
15 { CREATE INDEX i4 ON t2(a) } {
SELECT * FROM t2 INDEXED BY i4 ORDER BY a
}
16 { CREATE TRIGGER tr2 AFTER INSERT ON t3 BEGIN SELECT 1 ; END } {
DROP TRIGGER tr2
}
17 { CREATE VIEW v1 AS SELECT * FROM t1 } { SELECT a,b,c FROM v1 }
18 { ALTER TABLE t1 ADD COLUMN d } { SELECT a,b,c,d FROM v1 }
19 { CREATE TABLE t7(a, b) } {
DROP TABLE IF EXISTS t7; CREATE TABLE t7(c, d);
}
20 { CREATE INDEX i5 ON t7(c, d) } {
DROP INDEX IF EXISTS i5; CREATE INDEX i5 ON t7(c)
}
21 { CREATE TRIGGER tr3 BEFORE DELETE ON t7 BEGIN SELECT 1, 2, 3 ; END } {
DROP TRIGGER IF EXISTS tr3;
CREATE TRIGGER tr3 AFTER INSERT ON t7 BEGIN SELECT 1, 2, 3 ; END
}
22 { CREATE TABLE t8(a, b) } {
CREATE TRIGGER tr4 AFTER UPDATE OF a ON t8 BEGIN
SELECT 1, 2, 3;
END;
}
} {
do_test schema3-1.$tn.$tn2 {
sql1 $c1
sql2 $c2
} {}
}
}
finish_test
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