AryaWu/sqlite

1# 2010 Jun 282#3# The author disclaims copyright to this source code.  In place of4# 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 14set testdir [file dirname $argv0]15source $testdir/tester.tcl16source $testdir/malloc_common.tcl17source $testdir/lock_common.tcl18 19# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.20ifcapable !altertable {21  finish_test22  return23}24 25# This block tests that if one client modifies the database schema, a26# second client updates its internal cache of the database schema before27# executing any queries. Specifically, it does not return a "no such column"28# or "no such table" error if the table or column in question does exist29# but was added after the second client loaded its cache of the database30# schema.31#32# Types of schema modifications:33#34#   1. Adding a database table.35#   2. Adding a database view.36#   3. Adding a database index.37#   4. Adding a database trigger.38#   5. Adding a column to an existing table (ALTER TABLE).39#40do_multiclient_test tn {41 42  # Have connections [db1] and [db2] load the current database schema.43  #44  sql1 { SELECT * FROM sqlite_master }45  sql2 { SELECT * FROM sqlite_master }46 47  foreach {tn2 c1 c2} {48    1  { CREATE TABLE t1(a, b) }       { SELECT * FROM t1            }49    2  { CREATE TABLE t2(a, b) }       { UPDATE t2 SET a = b         }50    3  { CREATE TABLE t3(a, b) }       { DELETE FROM t3              }51    4  { CREATE TABLE t4(a, b) }       { INSERT INTO t4 VALUES(1, 2) }52    5  { CREATE TABLE t5(a, b) }       { DROP TABLE t5 }53    6  { CREATE TABLE t6(a, b) }       { CREATE INDEX i1 ON t6(a) }54 55    7  { ALTER TABLE t1 ADD COLUMN c } { SELECT a, b, c FROM t1 }56    8  { ALTER TABLE t2 ADD COLUMN c } { UPDATE t2 SET a = c }57    9  { ALTER TABLE t2 ADD COLUMN d } { UPDATE t2 SET d = c }58    10 { ALTER TABLE t3 ADD COLUMN c } { DELETE FROM t3 WHERE c>10 }59    11 { ALTER TABLE t4 ADD COLUMN c } { INSERT INTO t4(a,b,c) VALUES(1,2,3) }60    12 { ALTER TABLE t6 ADD COLUMN c } { CREATE INDEX i2 ON t6(c) }61    13 { ALTER TABLE t6 ADD COLUMN d } { 62         CREATE TRIGGER tr1 AFTER UPDATE OF d ON t6 BEGIN63           SELECT 1, 2, 3;64         END;65    }66 67    14 { CREATE INDEX i3 ON t1(a) }    { DROP INDEX i3 }68    15 { CREATE INDEX i4 ON t2(a) }    {69         SELECT * FROM t2 INDEXED BY i4 ORDER BY a70    }71 72    16 { CREATE TRIGGER tr2 AFTER INSERT ON t3 BEGIN SELECT 1 ; END } {73         DROP TRIGGER tr274    }75 76    17  { CREATE VIEW v1 AS SELECT * FROM t1 } { SELECT a,b,c   FROM v1 }77    18  { ALTER TABLE t1 ADD COLUMN d        } { SELECT a,b,c,d FROM v1 }78 79    19  { CREATE TABLE t7(a, b) } {80          DROP TABLE IF EXISTS t7; CREATE TABLE t7(c, d);81    }82    20  { CREATE INDEX i5 ON t7(c, d) } {83          DROP INDEX IF EXISTS i5; CREATE INDEX i5 ON t7(c)84    }85    21  { CREATE TRIGGER tr3 BEFORE DELETE ON t7 BEGIN SELECT 1, 2, 3 ; END } {86          DROP TRIGGER IF EXISTS tr3;87          CREATE TRIGGER tr3 AFTER INSERT ON t7 BEGIN SELECT 1, 2, 3 ; END 88    }89 90    22  { CREATE TABLE t8(a, b) }       {91         CREATE TRIGGER tr4 AFTER UPDATE OF a ON t8 BEGIN92           SELECT 1, 2, 3;93         END;94    }95  } {96    do_test schema3-1.$tn.$tn2 {97      sql1 $c198      sql2 $c299    } {}100  }101}102 103finish_test104