alter.test

sqlite-3.4.1,嵌入式数据库.是一个功能强大的开源数据库,给学习和研发以及小型公司的发展带来了全所未有的好处.

# 2004 November 10
#
# 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.  The
# focus of this script is testing the ALTER TABLE statement.
#
# $Id: alter.test,v 1.25 2007/05/15 16:51:37 drh Exp $
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
ifcapable !altertable {
  finish_test
  return
}

#----------------------------------------------------------------------
# Test organization:
#
# alter-1.1.* - alter-1.7.*: Basic tests of ALTER TABLE, including tables
#     with implicit and explicit indices. These tests came from an earlier
#     fork of SQLite that also supported ALTER TABLE.
# alter-1.8.*: Tests for ALTER TABLE when the table resides in an 
#     attached database.
# alter-1.9.*: Tests for ALTER TABLE when their is whitespace between the
#     table name and left parenthesis token. i.e: 
#     "CREATE TABLE abc       (a, b, c);"
# alter-2.*: Test error conditions and messages.
# alter-3.*: Test ALTER TABLE on tables that have TRIGGERs attached to them.
# alter-4.*: Test ALTER TABLE on tables that have AUTOINCREMENT fields.
#

# Create some tables to rename.  Be sure to include some TEMP tables
# and some tables with odd names.
#
do_test alter-1.1 {
  ifcapable tempdb {
    set ::temp TEMP
  } else {
    set ::temp {}
  }
  execsql [subst -nocommands {
    CREATE TABLE t1(a,b);
    INSERT INTO t1 VALUES(1,2);
    CREATE TABLE [t1'x1](c UNIQUE, b PRIMARY KEY);
    INSERT INTO [t1'x1] VALUES(3,4);
    CREATE INDEX t1i1 ON T1(B);
    CREATE INDEX t1i2 ON t1(a,b);
    CREATE INDEX i3 ON [t1'x1](b,c);
    CREATE $::temp TABLE "temp table"(e,f,g UNIQUE);
    CREATE INDEX i2 ON [temp table](f);
    INSERT INTO [temp table] VALUES(5,6,7);
  }]
  execsql {
    SELECT 't1', * FROM t1;
    SELECT 't1''x1', * FROM "t1'x1";
    SELECT * FROM [temp table];
  }
} {t1 1 2 t1'x1 3 4 5 6 7}
do_test alter-1.2 {
  execsql [subst {
    CREATE $::temp TABLE objlist(type, name, tbl_name);
    INSERT INTO objlist SELECT type, name, tbl_name 
        FROM sqlite_master WHERE NAME!='objlist';
  }]
  ifcapable tempdb {
    execsql {
      INSERT INTO objlist SELECT type, name, tbl_name 
          FROM sqlite_temp_master WHERE NAME!='objlist';
    }
  }

  execsql {
    SELECT type, name, tbl_name FROM objlist ORDER BY tbl_name, type desc, name;
  }
} [list \
     table t1                              t1             \
     index t1i1                            t1             \
     index t1i2                            t1             \
     table t1'x1                           t1'x1          \
     index i3                              t1'x1          \
     index {sqlite_autoindex_t1'x1_1}      t1'x1          \
     index {sqlite_autoindex_t1'x1_2}      t1'x1          \
     table {temp table}                    {temp table}   \
     index i2                              {temp table}   \
     index {sqlite_autoindex_temp table_1} {temp table}   \
  ]

# Make some changes
#
integrity_check alter-1.3.0
do_test alter-1.3 {
  execsql {
    ALTER TABLE [T1] RENAME to [-t1-];
    ALTER TABLE "t1'x1" RENAME TO T2;
    ALTER TABLE [temp table] RENAME to TempTab;
  }
} {}
integrity_check alter-1.3.1
do_test alter-1.4 {
  execsql {
    SELECT 't1', * FROM [-t1-];
    SELECT 't2', * FROM t2;
    SELECT * FROM temptab;
  }
} {t1 1 2 t2 3 4 5 6 7}
do_test alter-1.5 {
  execsql {
    DELETE FROM objlist;
    INSERT INTO objlist SELECT type, name, tbl_name
        FROM sqlite_master WHERE NAME!='objlist';
  }
  catchsql {
    INSERT INTO objlist SELECT type, name, tbl_name 
        FROM sqlite_temp_master WHERE NAME!='objlist';
  }
  execsql {
    SELECT type, name, tbl_name FROM objlist ORDER BY tbl_name, type desc, name;
  }
} [list \
     table -t1-                         -t1-        \
     index t1i1                         -t1-        \
     index t1i2                         -t1-        \
     table T2                           T2          \
     index i3                           T2          \
     index {sqlite_autoindex_T2_1}      T2          \
     index {sqlite_autoindex_T2_2}      T2          \
     table {TempTab}                    {TempTab}   \
     index i2                           {TempTab}   \
     index {sqlite_autoindex_TempTab_1} {TempTab}   \
  ]

# Make sure the changes persist after restarting the database.
# (The TEMP table will not persist, of course.)
#
ifcapable tempdb {
  do_test alter-1.6 {
    db close
    sqlite3 db test.db
    set DB [sqlite3_connection_pointer db]
    execsql {
      CREATE TEMP TABLE objlist(type, name, tbl_name);
      INSERT INTO objlist SELECT type, name, tbl_name FROM sqlite_master;
      INSERT INTO objlist 
          SELECT type, name, tbl_name FROM sqlite_temp_master 
          WHERE NAME!='objlist';
      SELECT type, name, tbl_name FROM objlist 
          ORDER BY tbl_name, type desc, name;
    }
  } [list \
       table -t1-                         -t1-           \
       index t1i1                         -t1-           \
       index t1i2                         -t1-           \
       table T2                           T2          \
       index i3                           T2          \
       index {sqlite_autoindex_T2_1}      T2          \
       index {sqlite_autoindex_T2_2}      T2          \
    ]
} else {
  execsql {
    DROP TABLE TempTab;
  }
}

# Make sure the ALTER TABLE statements work with the
# non-callback API
#
do_test alter-1.7 {
  stepsql $DB {
    ALTER TABLE [-t1-] RENAME to [*t1*];
    ALTER TABLE T2 RENAME TO [<t2>];
  }
  execsql {
    DELETE FROM objlist;
    INSERT INTO objlist SELECT type, name, tbl_name
        FROM sqlite_master WHERE NAME!='objlist';
  }
  catchsql {
    INSERT INTO objlist SELECT type, name, tbl_name 
        FROM sqlite_temp_master WHERE NAME!='objlist';
  }
  execsql {
    SELECT type, name, tbl_name FROM objlist ORDER BY tbl_name, type desc, name;
  }
} [list \
     table *t1*                         *t1*           \
     index t1i1                         *t1*           \
     index t1i2                         *t1*           \
     table <t2>                         <t2>          \
     index i3                           <t2>          \
     index {sqlite_autoindex_<t2>_1}    <t2>          \
     index {sqlite_autoindex_<t2>_2}    <t2>          \
  ]

# Check that ALTER TABLE works on attached databases.
#
do_test alter-1.8.1 {
  file delete -force test2.db
  file delete -force test2.db-journal
  execsql {
    ATTACH 'test2.db' AS aux;
  }
} {}
do_test alter-1.8.2 {
  execsql {
    CREATE TABLE t4(a PRIMARY KEY, b, c);
    CREATE TABLE aux.t4(a PRIMARY KEY, b, c);
    CREATE INDEX i4 ON t4(b);
    CREATE INDEX aux.i4 ON t4(b);
  }
} {}
do_test alter-1.8.3 {
  execsql {
    INSERT INTO t4 VALUES('main', 'main', 'main');
    INSERT INTO aux.t4 VALUES('aux', 'aux', 'aux');
    SELECT * FROM t4 WHERE a = 'main';
  }
} {main main main}
do_test alter-1.8.4 {
  execsql {
    ALTER TABLE t4 RENAME TO t5;
    SELECT * FROM t4 WHERE a = 'aux';
  }
} {aux aux aux}
do_test alter-1.8.5 {
  execsql {
    SELECT * FROM t5;
  }
} {main main main}
do_test alter-1.8.6 {
  execsql {
    SELECT * FROM t5 WHERE b = 'main';
  }
} {main main main}
do_test alter-1.8.7 {
  execsql {
    ALTER TABLE aux.t4 RENAME TO t5;
    SELECT * FROM aux.t5 WHERE b = 'aux';
  }
} {aux aux aux}

do_test alter-1.9.1 {
  execsql {
    CREATE TABLE tbl1   (a, b, c);
    INSERT INTO tbl1 VALUES(1, 2, 3);
  }
} {}
do_test alter-1.9.2 {
  execsql {
    SELECT * FROM tbl1;
  }
} {1 2 3}
do_test alter-1.9.3 {
  execsql {
    ALTER TABLE tbl1 RENAME TO tbl2;
    SELECT * FROM tbl2;
  }
} {1 2 3}
do_test alter-1.9.4 {
  execsql {
    DROP TABLE tbl2;
  }
} {}

# Test error messages
#
do_test alter-2.1 {
  catchsql {
    ALTER TABLE none RENAME TO hi;
  }
} {1 {no such table: none}}
do_test alter-2.2 {
  execsql {
    CREATE TABLE t3(p,q,r);
  }
  catchsql {
    ALTER TABLE [<t2>] RENAME TO t3;
  }
} {1 {there is already another table or index with this name: t3}}
do_test alter-2.3 {
  catchsql {
    ALTER TABLE [<t2>] RENAME TO i3;
  }
} {1 {there is already another table or index with this name: i3}}
do_test alter-2.4 {
  catchsql {
    ALTER TABLE SqLiTe_master RENAME TO master;
  }
} {1 {table sqlite_master may not be altered}}
do_test alter-2.5 {
  catchsql {
    ALTER TABLE t3 RENAME TO sqlite_t3;
  }
} {1 {object name reserved for internal use: sqlite_t3}}
do_test alter-2.6 {
  catchsql {
    ALTER TABLE t3 ADD COLUMN (ALTER TABLE t3 ADD COLUMN);
  }
} {1 {near "(": syntax error}}

# If this compilation does not include triggers, omit the alter-3.* tests.
ifcapable trigger {

#-----------------------------------------------------------------------
# Tests alter-3.* test ALTER TABLE on tables that have triggers.
#
# alter-3.1.*: ALTER TABLE with triggers.
# alter-3.2.*: Test that the ON keyword cannot be used as a database,
#     table or column name unquoted. This is done because part of the
#     ALTER TABLE code (specifically the implementation of SQL function
#     "sqlite_alter_trigger") will break in this case.
# alter-3.3.*: ALTER TABLE with TEMP triggers (todo).
#

# An SQL user-function for triggers to fire, so that we know they
# are working.
proc trigfunc {args} {
  set ::TRIGGER $args
}
db func trigfunc trigfunc

do_test alter-3.1.0 {
  execsql {
    CREATE TABLE t6(a, b, c);
    CREATE TRIGGER trig1 AFTER INSERT ON t6 BEGIN
      SELECT trigfunc('trig1', new.a, new.b, new.c);
    END;
  }
} {}
do_test alter-3.1.1 {
  execsql {
    INSERT INTO t6 VALUES(1, 2, 3);
  }
  set ::TRIGGER
} {trig1 1 2 3}
do_test alter-3.1.2 {
  execsql {
    ALTER TABLE t6 RENAME TO t7;
    INSERT INTO t7 VALUES(4, 5, 6);
  }
  set ::TRIGGER
} {trig1 4 5 6}
do_test alter-3.1.3 {
  execsql {
    DROP TRIGGER trig1;
  }
} {}
do_test alter-3.1.4 {
  execsql {
    CREATE TRIGGER trig2 AFTER INSERT ON main.t7 BEGIN
      SELECT trigfunc('trig2', new.a, new.b, new.c);
    END;
    INSERT INTO t7 VALUES(1, 2, 3);
  }
  set ::TRIGGER
} {trig2 1 2 3}
do_test alter-3.1.5 {
  execsql {
    ALTER TABLE t7 RENAME TO t8;
    INSERT INTO t8 VALUES(4, 5, 6);
  }
  set ::TRIGGER
} {trig2 4 5 6}
do_test alter-3.1.6 {
  execsql {
    DROP TRIGGER trig2;
  }
} {}
do_test alter-3.1.7 {
  execsql {