1 # 2010 Jun 28 2 # 3 # The author disclaims copyright to this source code. In place of 4 # a legal notice, here is a blessing: 5 # 6 # May you do good and not evil. 7 # May you find forgiveness for yourself and forgive others. 8 # May you share freely, never taking more than you give. 9 # 10 #*********************************************************************** 11 # This file implements regression tests for SQLite library. 12 # 13 14 set testdir [file dirname $argv0] 15 source $testdir/tester.tcl 16 source $testdir/malloc_common.tcl 17 source $testdir/lock_common.tcl 18 19 # This block tests that if one client modifies the database schema, a 20 # second client updates its internal cache of the database schema before 21 # executing any queries. Specifically, it does not return a "no such column" 22 # or "no such table" error if the table or column in question does exist 23 # but was added after the second client loaded its cache of the database 24 # schema. 25 # 26 # Types of schema modifications: 27 # 28 # 1. Adding a database table. 29 # 2. Adding a database view. 30 # 3. Adding a database index. 31 # 4. Adding a database trigger. 32 # 5. Adding a column to an existing table (ALTER TABLE). 33 # 34 do_multiclient_test tn { 35 36 # Have connections [db1] and [db2] load the current database schema. 37 # 38 sql1 { SELECT * FROM sqlite_master } 39 sql2 { SELECT * FROM sqlite_master } 40 41 foreach {tn2 c1 c2} { 42 1 { CREATE TABLE t1(a, b) } { SELECT * FROM t1 } 43 2 { CREATE TABLE t2(a, b) } { UPDATE t2 SET a = b } 44 3 { CREATE TABLE t3(a, b) } { DELETE FROM t3 } 45 4 { CREATE TABLE t4(a, b) } { INSERT INTO t4 VALUES(1, 2) } 46 5 { CREATE TABLE t5(a, b) } { DROP TABLE t5 } 47 6 { CREATE TABLE t6(a, b) } { CREATE INDEX i1 ON t6(a) } 48 49 7 { ALTER TABLE t1 ADD COLUMN c } { SELECT a, b, c FROM t1 } 50 8 { ALTER TABLE t2 ADD COLUMN c } { UPDATE t2 SET a = c } 51 9 { ALTER TABLE t2 ADD COLUMN d } { UPDATE t2 SET d = c } 52 10 { ALTER TABLE t3 ADD COLUMN c } { DELETE FROM t3 WHERE c>10 } 53 11 { ALTER TABLE t4 ADD COLUMN c } { INSERT INTO t4(a,b,c) VALUES(1,2,3) } 54 12 { ALTER TABLE t6 ADD COLUMN c } { CREATE INDEX i2 ON t6(c) } 55 13 { ALTER TABLE t6 ADD COLUMN d } { 56 CREATE TRIGGER tr1 AFTER UPDATE OF d ON t6 BEGIN 57 SELECT 1, 2, 3; 58 END; 59 } 60 61 14 { CREATE INDEX i3 ON t1(a) } { DROP INDEX i3 } 62 15 { CREATE INDEX i4 ON t2(a) } { 63 SELECT * FROM t2 INDEXED BY i4 ORDER BY a 64 } 65 66 16 { CREATE TRIGGER tr2 AFTER INSERT ON t3 BEGIN SELECT 1 ; END } { 67 DROP TRIGGER tr2 68 } 69 70 17 { CREATE VIEW v1 AS SELECT * FROM t1 } { SELECT a,b,c FROM v1 } 71 18 { ALTER TABLE t1 ADD COLUMN d } { SELECT a,b,c,d FROM v1 } 72 73 19 { CREATE TABLE t7(a, b) } { 74 DROP TABLE IF EXISTS t7; CREATE TABLE t7(c, d); 75 } 76 20 { CREATE INDEX i5 ON t7(c, d) } { 77 DROP INDEX IF EXISTS i5; CREATE INDEX i5 ON t7(c) 78 } 79 21 { CREATE TRIGGER tr3 BEFORE DELETE ON t7 BEGIN SELECT 1, 2, 3 ; END } { 80 DROP TRIGGER IF EXISTS tr3; 81 CREATE TRIGGER tr3 AFTER INSERT ON t7 BEGIN SELECT 1, 2, 3 ; END 82 } 83 84 22 { CREATE TABLE t8(a, b) } { 85 CREATE TRIGGER tr4 AFTER UPDATE OF a ON t8 BEGIN 86 SELECT 1, 2, 3; 87 END; 88 } 89 } { 90 do_test schema3-1.$tn.$tn2 { 91 sql1 $c1 92 sql2 $c2 93 } {} 94 } 95 } 96 97 finish_test 98
