attach.test

sqlite数据库源码

# 2003 April 4
#
# 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 ATTACH and DETACH commands
# and related functionality.
#
# $Id: attach.test,v 1.13 2004/02/14 01:39:50 drh Exp $
#

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

for {set i 2} {$i<=15} {incr i} {
  file delete -force test$i.db
  file delete -force test$i.db-journal
}

do_test attach-1.1 {
  execsql {
    CREATE TABLE t1(a,b);
    INSERT INTO t1 VALUES(1,2);
    INSERT INTO t1 VALUES(3,4);
    SELECT * FROM t1;
  }
} {1 2 3 4}
do_test attach-1.2 {
  sqlite db2 test2.db
  execsql {
    CREATE TABLE t2(x,y);
    INSERT INTO t2 VALUES(1,'x');
    INSERT INTO t2 VALUES(2,'y');
    SELECT * FROM t2;
  } db2
} {1 x 2 y}
do_test attach-1.3 {
  execsql {
    ATTACH DATABASE 'test2.db' AS two;
    SELECT * FROM two.t2;
  }
} {1 x 2 y}
do_test attach-1.4 {
  execsql {
    SELECT * FROM t2;
  }
} {1 x 2 y}
do_test attach-1.5 {
  execsql {
    DETACH DATABASE two;
    SELECT * FROM t1;
  }
} {1 2 3 4}
do_test attach-1.6 {
  catchsql {
    SELECT * FROM t2;
  }
} {1 {no such table: t2}}
do_test attach-1.7 {
  catchsql {
    SELECT * FROM two.t2;
  }
} {1 {no such table: two.t2}}
do_test attach-1.8 {
  catchsql {
    ATTACH DATABASE 'test3.db' AS three;
  }
} {1 {cannot attach empty database: three}}
do_test attach-1.9 {
  catchsql {
    SELECT * FROM three.sqlite_master;
  }
} {1 {no such table: three.sqlite_master}}
do_test attach-1.10 {
  catchsql {
    DETACH DATABASE three;
  }
} {1 {no such database: three}}
do_test attach-1.11 {
  execsql {
    ATTACH 'test.db' AS db2;
    ATTACH 'test.db' AS db3;
    ATTACH 'test.db' AS db4;
    ATTACH 'test.db' AS db5;
    ATTACH 'test.db' AS db6;
    ATTACH 'test.db' AS db7;
    ATTACH 'test.db' AS db8;
    ATTACH 'test.db' AS db9;
  }
} {}
proc db_list {db} {
  set list {}
  foreach {idx name file} [execsql {PRAGMA database_list} $db] {
    lappend list $idx $name
  }
  return $list
}
do_test attach-1.11b {
  db_list db
} {0 main 1 temp 2 db2 3 db3 4 db4 5 db5 6 db6 7 db7 8 db8 9 db9}
do_test attach-1.12 {
  catchsql {
    ATTACH 'test.db' as db2;
  }
} {1 {database db2 is already in use}}
do_test attach-1.13 {
  catchsql {
    ATTACH 'test.db' as db5;
  }
} {1 {database db5 is already in use}}
do_test attach-1.14 {
  catchsql {
    ATTACH 'test.db' as db9;
  }
} {1 {database db9 is already in use}}
do_test attach-1.15 {
  catchsql {
    ATTACH 'test.db' as main;
  }
} {1 {database main is already in use}}
do_test attach-1.16 {
  catchsql {
    ATTACH 'test.db' as temp;
  }
} {1 {database temp is already in use}}
do_test attach-1.17 {
  catchsql {
    ATTACH 'test.db' as MAIN;
  }
} {1 {database MAIN is already in use}}
do_test attach-1.18 {
  catchsql {
    ATTACH 'test.db' as db10;
    ATTACH 'test.db' as db11;
  }
} {0 {}}
do_test attach-1.19 {
  catchsql {
    ATTACH 'test.db' as db12;
  }
} {1 {too many attached databases - max 10}}
do_test attach-1.20.1 {
  execsql {
    DETACH db5;
  }
  db_list db
} {0 main 1 temp 2 db2 3 db3 4 db4 5 db11 6 db6 7 db7 8 db8 9 db9 10 db10}
integrity_check attach-1.20.2
do_test attach-1.21 {
  catchsql {
    ATTACH 'test.db' as db12;
  }
} {0 {}}
do_test attach-1.22 {
  catchsql {
    ATTACH 'test.db' as db13;
  }
} {1 {too many attached databases - max 10}}
do_test attach-1.23 {
  catchsql {
    DETACH db14;
  }
} {1 {no such database: db14}}
do_test attach-1.24 {
  catchsql {
    DETACH db12;
  }
} {0 {}}
do_test attach-1.25 {
  catchsql {
    DETACH db12;
  }
} {1 {no such database: db12}}
do_test attach-1.26 {
  catchsql {
    DETACH main;
  }
} {1 {cannot detach database main}}
do_test attach-1.27 {
  catchsql {
    DETACH Temp;
  }
} {1 {cannot detach database Temp}}
do_test attach-1.28 {
  catchsql {
    DETACH db11;
    DETACH db10;
    DETACH db9;
    DETACH db8;
    DETACH db7;
    DETACH db6;
    DETACH db4;
    DETACH db3;
    DETACH db2;
  }
} {0 {}}
do_test attach-1.29 {
  db_list db
} {0 main 1 temp}

do_test attach-2.1 {
  execsql {
    CREATE TABLE tx(x1,x2,y1,y2);
    CREATE TRIGGER r1 AFTER UPDATE ON t2 FOR EACH ROW BEGIN
      INSERT INTO tx(x1,x2,y1,y2) VALUES(OLD.x,NEW.x,OLD.y,NEW.y);
    END;
    SELECT * FROM tx;
  } db2;
} {}
do_test attach-2.2 {
  execsql {
    UPDATE t2 SET x=x+10;
    SELECT * FROM tx;
  } db2;
} {1 11 x x 2 12 y y}
do_test attach-2.3 {
  execsql {
    CREATE TABLE tx(x1,x2,y1,y2);
    SELECT * FROM tx;
  }
} {}
do_test attach-2.4 {
  execsql {
    ATTACH 'test2.db' AS db2;
  }
} {}
do_test attach-2.5 {
  execsql {
    UPDATE db2.t2 SET x=x+10;
    SELECT * FROM db2.tx;
  }
} {1 11 x x 2 12 y y 11 21 x x 12 22 y y}
do_test attach-2.6 {
  execsql {
    SELECT * FROM main.tx;
  }
} {}
do_test attach-2.7 {
  execsql {
    SELECT type, name, tbl_name FROM db2.sqlite_master;
  }
} {table t2 t2 table tx tx trigger r1 t2}
do_test attach-2.8 {
  db_list db
} {0 main 1 temp 2 db2}
do_test attach-2.9 {
  execsql {
    CREATE INDEX i2 ON t2(x);
    SELECT * FROM t2 WHERE x>5;
  } db2
} {21 x 22 y}
do_test attach-2.10 {
  execsql {
    SELECT type, name, tbl_name FROM sqlite_master;
  } db2
} {table t2 t2 table tx tx trigger r1 t2 index i2 t2}
#do_test attach-2.11 {
#  catchsql { 
#    SELECT * FROM t2 WHERE x>5;
#  }
#} {1 {database schema has changed}}
do_test attach-2.12 {
  db_list db
} {0 main 1 temp 2 db2}
do_test attach-2.13 {
  catchsql {
    SELECT * FROM t2 WHERE x>5;
  }
} {0 {21 x 22 y}}
do_test attach-2.14 {
  execsql {
    SELECT type, name, tbl_name FROM sqlite_master;
  }
} {table t1 t1 table tx tx}
do_test attach-2.15 {
  execsql {
    SELECT type, name, tbl_name FROM db2.sqlite_master;
  }
} {table t2 t2 table tx tx trigger r1 t2 index i2 t2}
do_test attach-2.16 {
  db close
  sqlite db test.db
  execsql {
    ATTACH 'test2.db' AS db2;
    SELECT type, name, tbl_name FROM db2.sqlite_master;
  }
} {table t2 t2 table tx tx trigger r1 t2 index i2 t2}

do_test attach-3.1 {
  db close
  db2 close
  sqlite db test.db
  sqlite db2 test2.db
  execsql {
    SELECT * FROM t1
  }
} {1 2 3 4}
do_test attach-3.2 {
  catchsql {
    SELECT * FROM t2
  }
} {1 {no such table: t2}}
do_test attach-3.3 {
  catchsql {
    ATTACH DATABASE 'test2.db' AS db2;
    SELECT * FROM t2
  }
} {0 {21 x 22 y}}

# Even though main has a transaction, test2.db should not be locked.
do_test attach-3.4 {
  execsql BEGIN
  catchsql {
    SELECT * FROM t2;
  } db2;
} {0 {21 x 22 y}}

# Reading from db2 should not lock test2.db
do_test attach-3.5 {
  execsql {SELECT * FROM t2}
  catchsql {
    SELECT * FROM t2;
  } db2;
} {0 {21 x 22 y}}

# Making a change to db2 causes test2.ddb to become locked.
do_test attach-3.6 {
  execsql {
    UPDATE t2 SET x=x+1 WHERE x=50;
  }
  catchsql {
    SELECT * FROM t2;
  } db2;
} {1 {database is locked}}

do_test attach-3.7 {
  execsql ROLLBACK
  execsql {SELECT * FROM t2} db2
} {21 x 22 y}
do_test attach-3.8 {
  execsql BEGIN
  execsql BEGIN db2
  catchsql {SELECT * FROM t2}
} {1 {database is locked}}
do_test attach-3.9 {
  catchsql {SELECT * FROM t2} db2
} {0 {21 x 22 y}}
do_test attach-3.10 {
  execsql {SELECT * FROM t1}
} {1 2 3 4}
do_test attach-3.11 {
  catchsql {UPDATE t1 SET a=a+1}
} {0 {}}
do_test attach-3.12 {
  execsql {SELECT * FROM t1}
} {2 2 4 4}
do_test attach-3.13 {
  catchsql {UPDATE t2 SET x=x+1 WHERE x=50}
} {1 {database is locked}}
do_test attach-3.14 {
  # Unable to reinitialize the schema tables because the aux database
  # is still locked.
  catchsql {SELECT * FROM t1}
} {1 {database is locked}}
do_test attach-3.15 {
  execsql COMMIT db2
  execsql {SELECT * FROM t1}
} {1 2 3 4}

# Ticket #323
do_test attach-4.1 {
  execsql {DETACH db2}
  db2 close
  sqlite db2 test2.db
  execsql {
    CREATE TABLE t3(x,y);
    CREATE UNIQUE INDEX t3i1 ON t3(x);
    INSERT INTO t3 VALUES(1,2);
    SELECT * FROM t3;
  } db2;
} {1 2}
do_test attach-4.2 {
  execsql {
    CREATE TABLE t3(a,b);
    CREATE UNIQUE INDEX t3i1b ON t3(a);
    INSERT INTO t3 VALUES(9,10);
    SELECT * FROM t3;
  }
} {9 10}
do_test attach-4.3 {
  execsql {
    ATTACH DATABASE 'test2.db' AS db2;
    SELECT * FROM db2.t3;
  }
} {1 2}
do_test attach-4.4 {
  execsql {
    SELECT * FROM main.t3;
  }
} {9 10}
do_test attach-4.5 {
  execsql {
    INSERT INTO db2.t3 VALUES(9,10);
    SELECT * FROM db2.t3;
  }
} {1 2 9 10}
do_test attach-4.6 {
  execsql {
    DETACH db2;
  }
  execsql {
    CREATE TABLE t4(x);
    CREATE TRIGGER t3r3 AFTER INSERT ON t3 BEGIN
      INSERT INTO t4 VALUES('db2.' || NEW.x);
    END;
    INSERT INTO t3 VALUES(6,7);
    SELECT * FROM t4;
  } db2
} {db2.6}
do_test attach-4.7 {
  execsql {
    CREATE TABLE t4(y);
    CREATE TRIGGER t3r3 AFTER INSERT ON t3 BEGIN
      INSERT INTO t4 VALUES('main.' || NEW.a);
    END;
    INSERT INTO main.t3 VALUES(11,12);
    SELECT * FROM main.t4;
  }
} {main.11}
do_test attach-4.8 {
  execsql {
    ATTACH DATABASE 'test2.db' AS db2;
    INSERT INTO db2.t3 VALUES(13,14);
    SELECT * FROM db2.t4 UNION ALL SELECT * FROM main.t4;
  }
} {db2.6 db2.13 main.11}
do_test attach-4.9 {
  execsql {
    INSERT INTO main.t3 VALUES(15,16);
    SELECT * FROM db2.t4 UNION ALL SELECT * FROM main.t4;
  }
} {db2.6 db2.13 main.11 main.15}
do_test attach-4.10 {
  execsql {
    DETACH DATABASE db2;
  }
  execsql {
    CREATE VIEW v3 AS SELECT x*100+y FROM t3;
    SELECT * FROM v3;
  } db2
} {102 910 607 1314}
do_test attach-4.11 {
  execsql {
    CREATE VIEW v3 AS SELECT a*100+b FROM t3;
    SELECT * FROM v3;
  }
} {910 1112 1516}
do_test attach-4.12 {
  execsql {
    ATTACH DATABASE 'test2.db' AS db2;
    SELECT * FROM db2.v3;
  }
} {102 910 607 1314}
do_test attach-4.13 {
  execsql {
    SELECT * FROM main.v3;
  }
} {910 1112 1516}

# Tests for the sqliteFix...() routines in attach.c
#
do_test attach-5.1 {
  db close
  sqlite db test.db
  db2 close
  file delete -force test2.db
  sqlite db2 test2.db
  catchsql {
    ATTACH DATABASE 'test.db' AS orig;
    CREATE TRIGGER r1 AFTER INSERT ON orig.t1 BEGIN;
      SELECT 'no-op';
    END;
  } db2
} {1 {triggers may not be added to auxiliary database orig}}
do_test attach-5.2 {
  catchsql {
    CREATE TABLE t5(x,y);
    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
      SELECT 'no-op';
    END;
  } db2
} {0 {}}
do_test attach-5.3 {
  catchsql {
    DROP TRIGGER r5;
    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
      SELECT 'no-op' FROM orig.t1;
    END;
  } db2
} {1 {trigger r5 cannot reference objects in database orig}}
do_test attach-5.4 {
  catchsql {
    CREATE TEMP TABLE t6(p,q,r);
    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
      SELECT 'no-op' FROM temp.t6;
    END;
  } db2
} {1 {trigger r5 cannot reference objects in database temp}}
do_test attach-5.5 {
  catchsql {
    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
      SELECT 'no-op' || (SELECT * FROM temp.t6);
    END;
  } db2
} {1 {trigger r5 cannot reference objects in database temp}}
do_test attach-5.6 {
  catchsql {
    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
      SELECT 'no-op' FROM t1 WHERE x<(SELECT min(x) FROM temp.t6);
    END;
  } db2
} {1 {trigger r5 cannot reference objects in database temp}}
do_test attach-5.7 {
  catchsql {
    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
      SELECT 'no-op' FROM t1 GROUP BY 1 HAVING x<(SELECT min(x) FROM temp.t6);
    END;
  } db2
} {1 {trigger r5 cannot reference objects in database temp}}
do_test attach-5.7 {
  catchsql {
    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
      SELECT max(1,x,(SELECT min(x) FROM temp.t6)) FROM t1;
    END;
  } db2
} {1 {trigger r5 cannot reference objects in database temp}}
do_test attach-5.8 {
  catchsql {
    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
      INSERT INTO t1 VALUES((SELECT min(x) FROM temp.t6),5);
    END;
  } db2
} {1 {trigger r5 cannot reference objects in database temp}}
do_test attach-5.9 {
  catchsql {
    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
      DELETE FROM t1 WHERE x<(SELECT min(x) FROM temp.t6);
    END;
  } db2
} {1 {trigger r5 cannot reference objects in database temp}}

# Check to make sure we get a sensible error if unable to open
# the file that we are trying to attach.
#
do_test attach-6.1 {
  catchsql {
    ATTACH DATABASE 'no-such-file' AS nosuch;
  }
} {1 {cannot attach empty database: nosuch}}
file delete -force no-such-file
if {$tcl_platform(platform)=="unix"} {
  do_test attach-6.2 {
    sqlite dbx cannot-read
    dbx eval {CREATE TABLE t1(a,b,c)}
    dbx close
    file attributes cannot-read -permission 0000
    catchsql {
      ATTACH DATABASE 'cannot-read' AS noread;
    }
  } {1 {unable to open database: cannot-read}}
  file delete -force cannot-read
}

for {set i 2} {$i<=15} {incr i} {
  catch {db$i close}
}
file delete -force test2.db


finish_test