sqlite/test/attach.test

# 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 1.52 2009/05/29 14:39:08 drh Exp $
#

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

ifcapable !attach {
  finish_test
  return
}

for {set i 2} {$i<=15} {incr i} {
  forcedelete test$i.db
  forcedelete 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 {
  sqlite3 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}

# Tests for the sqlite3_db_filename interface
#
do_test attach-1.3.1 {
  file tail [sqlite3_db_filename db main]
} {test.db}
do_test attach-1.3.2 {
  file tail [sqlite3_db_filename db MAIN]
} {test.db}
do_test attach-1.3.3 {
  file tail [sqlite3_db_filename db temp]
} {}
do_test attach-1.3.4 {
  file tail [sqlite3_db_filename db two]
} {test2.db}
do_test attach-1.3.5 {
  file tail [sqlite3_db_filename db three]
} {}

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;
  }
} {0 {}}
do_test attach-1.9 {
  catchsql {
    SELECT * FROM three.sqlite_master;
  }
} {0 {}}
do_test attach-1.10 {
  catchsql {
    DETACH DATABASE [three];
  }
} {0 {}}
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 $list
}
ifcapable schema_pragmas {
do_test attach-1.11b {
  db_list db
} {0 main 2 db2 3 db3 4 db4 5 db5 6 db6 7 db7 8 db8 9 db9}
} ;# ifcapable schema_pragmas 
do_test attach-1.12 {
  catchsql {
    ATTACH 'test.db' as db2;
  }
} {1 {database db2 is already in use}}
do_test attach-1.12.2 {
  db errorcode
} {1}
do_test attach-1.13 {
  catchsql {
    ATTACH 'test.db' as db5;
  }
} {1 {database db5 is already in use}}
do_test attach-1.14 {
  catchsql {
    ATTACH 'test.db' as db9;
  }
} {1 {database db9 is already in use}}
do_catchsql_test attach-1.15 {
  ATTACH 'test.db' as main;
} {1 {database main is already in use}}
ifcapable tempdb {
  do_test attach-1.16 {
    catchsql {
      ATTACH 'test.db' as temp;
    }
  } {1 {database temp is already in use}}
}
do_catchsql_test attach-1.17 {
  ATTACH 'test.db' as MAIN;
} {1 {database MAIN is already in use}}
do_test attach-1.18 {
  catchsql {
    ATTACH 'test.db' as db10;
    ATTACH 'test.db' as db11;
  }
} {0 {}}
if {$SQLITE_MAX_ATTACHED==10} {
  do_test attach-1.19 {
    catchsql {
      ATTACH 'test.db' as db12;
    }
  } {1 {too many attached databases - max 10}}
  do_test attach-1.19.1 {
    db errorcode
  } {1}
}
do_test attach-1.20.1 {
  execsql {
    DETACH db5;
  }
} {}
ifcapable schema_pragmas {
do_test attach-1.20.2 {
  db_list db
} {0 main 2 db2 3 db3 4 db4 5 db6 6 db7 7 db8 8 db9 9 db10 10 db11}
} ;# ifcapable schema_pragmas
integrity_check attach-1.20.3
ifcapable tempdb {
  execsql {select * from temp.sqlite_master}
}
do_test attach-1.21 {
  catchsql {
    ATTACH 'test.db' as db12;
  }
} {0 {}}
if {$SQLITE_MAX_ATTACHED==10} {
  do_test attach-1.22 {
    catchsql {
      ATTACH 'test.db' as db13;
    }
  } {1 {too many attached databases - max 10}}
  do_test attach-1.22.1 {
    db errorcode
  } {1}
}
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}}


ifcapable tempdb {
  do_test attach-1.27 {
    catchsql {
      DETACH Temp;
    }
  } {1 {cannot detach database Temp}}
} else {
  do_test attach-1.27 {
    catchsql {
      DETACH Temp;
    }
  } {1 {no such 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 {}}
ifcapable schema_pragmas {
  ifcapable tempdb {
    do_test attach-1.29 {
      db_list db
    } {0 main 1 temp}
  } else {
    do_test attach-1.29 {
      db_list db
    } {0 main}
  }
} ;# ifcapable schema_pragmas

ifcapable {trigger} {  # Only do the following tests if triggers are enabled
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}

ifcapable schema_pragmas&&tempdb {
  do_test attach-2.8 {
    db_list db
  } {0 main 1 temp 2 db2}
} ;# ifcapable schema_pragmas&&tempdb
ifcapable schema_pragmas&&!tempdb {
  do_test attach-2.8 {
    db_list db
  } {0 main 2 db2}
} ;# ifcapable schema_pragmas&&!tempdb

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}}
ifcapable schema_pragmas {
  ifcapable tempdb {
    do_test attach-2.12 {
      db_list db
    } {0 main 1 temp 2 db2}
  } else {
    do_test attach-2.12 {
      db_list db
    } {0 main 2 db2}
  }
} ;# ifcapable schema_pragmas
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
  sqlite3 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}
} ;# End of ifcapable {trigger}

do_test attach-3.1 {
  db close
  db2 close
  sqlite3 db test.db
  sqlite3 db2 test2.db
  execsql {
    SELECT * FROM t1
  }
} {1 2 3 4}

# If we are testing a version of the code that lacks trigger support,
# adjust the database contents so that they are the same if triggers
# had been enabled.
ifcapable {!trigger} {
  db2 eval {
    DELETE FROM t2;
    INSERT INTO t2 VALUES(21, 'x');
    INSERT INTO t2 VALUES(22, 'y');
    CREATE TABLE tx(x1,x2,y1,y2);
    INSERT INTO tx VALUES(1, 11, 'x', 'x');
    INSERT INTO tx VALUES(2, 12, 'y', 'y');
    INSERT INTO tx VALUES(11, 21, 'x', 'x');
    INSERT INTO tx VALUES(12, 22, 'y', 'y');
    CREATE INDEX i2 ON t2(x);
  }
}

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 'db' has started a transaction, it should not yet have
# a lock on test2.db so 'db2' should be readable.
do_test attach-3.4 {
  execsql BEGIN
  catchsql {
    SELECT * FROM t2;
  } db2;
} {0 {21 x 22 y}}

# Reading from test2.db from db within a transaction should not
# prevent test2.db from being read by db2.
do_test attach-3.5 {
  execsql {SELECT * FROM t2}
  catchsql {
    SELECT * FROM t2;
  } db2;
} {0 {21 x 22 y}}

# Making a change to test2.db through db  causes test2.db to get
# a reserved lock.  It should still be accessible through db2.
do_test attach-3.6 {
  execsql {
    UPDATE t2 SET x=x+1 WHERE x=50;
  }
  catchsql {
    SELECT * FROM t2;
  } db2;
} {0 {21 x 22 y}}

do_test attach-3.7 {
  execsql ROLLBACK
  execsql {SELECT * FROM t2} db2
} {21 x 22 y}

# Start transactions on both db and db2.  Once again, just because
# we make a change to test2.db using db2, only a RESERVED lock is
# obtained, so test2.db should still be readable using db.
#
do_test attach-3.8 {
  execsql BEGIN
  execsql BEGIN db2
  execsql {UPDATE t2 SET x=0 WHERE 0} db2
  catchsql {SELECT * FROM t2}
} {0 {21 x 22 y}}

# It is also still accessible from db2.
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}

# db2 has a RESERVED lock on test2.db, so db cannot write to any tables
# in test2.db.
do_test attach-3.13 {
  catchsql {UPDATE t2 SET x=x+1 WHERE x=50}
} {1 {database is locked}}

# Change for version 3. Transaction is no longer rolled back
# for a locked database.
execsql {ROLLBACK}

# db is able to reread its schema because db2 still only holds a
# reserved lock.
do_test attach-3.14 {
  catchsql {SELECT * FROM t1}
} {0 {1 2 3 4}}
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
  sqlite3 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}
execsql {
  DETACH db2;
}
ifcapable {trigger} {
  do_test attach-4.6 {
    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}
}
ifcapable {!trigger} {
  # When we do not have trigger support, set up the table like they
  # would have been had triggers been there.  The tests that follow need
  # this setup.
  execsql {
    CREATE TABLE t4(x);
    INSERT INTO t3 VALUES(6,7);
    INSERT INTO t4 VALUES('db2.6');
    INSERT INTO t4 VALUES('db2.13');
  } db2
  execsql {
    CREATE TABLE t4(y);
    INSERT INTO main.t3 VALUES(11,12);
    INSERT INTO t4 VALUES('main.11');
  }
}


# This one is tricky.  On the UNION ALL select, we have to make sure
# the schema for both main and db2 is valid before starting to execute
# the first query of the UNION ALL.  If we wait to test the validity of
# the schema for main until after the first query has run, that test will
# fail and the query will abort but we will have already output some
# results.  When the query is retried, the results will be repeated.
#
ifcapable compound {
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 {
  ifcapable {!trigger} {execsql {INSERT INTO main.t4 VALUES('main.15')}}
  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}
} ;# ifcapable compound

ifcapable !compound {
  ifcapable {!trigger} {execsql {INSERT INTO main.t4 VALUES('main.15')}}
  execsql {
    ATTACH DATABASE 'test2.db' AS db2;
    INSERT INTO db2.t3 VALUES(13,14);
    INSERT INTO main.t3 VALUES(15,16);
  } 
} ;# ifcapable !compound

ifcapable view {
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}
} ;# ifcapable view

# Tests for the sqliteFix...() routines in attach.c
#
ifcapable {trigger} {
do_test attach-5.1 {
  db close
  sqlite3 db test.db
  db2 close
  forcedelete test2.db
  sqlite3 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 {trigger r1 cannot reference objects in 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}}
ifcapable tempdb {
  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}}
}
ifcapable subquery {
  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}}
} ;# endif subquery
ifcapable json1&&vtab {
  do_test attach-5.10 {
    db close
    catch {db2 close}
    forcedelete test.db
    sqlite3 db test.db
    db eval {
      CREATE TABLE t1(x);
      CREATE TABLE t2(a,b);
      CREATE TRIGGER x1 AFTER INSERT ON t1 BEGIN
        INSERT INTO t2(a,b) SELECT key, value FROM json_each(NEW.x);
      END;
      INSERT INTO t1(x) VALUES('{"a":1}');
      SELECT * FROM t2;
    }
  } {a 1}
  do_test attach-5.11 {
    sqlite3 db2 :memory:
    db2 eval {
      CREATE TABLE t3(y);
      ATTACH 'test.db' AS aux;
      INSERT INTO aux.t1(x) VALUES('{"b":2}');
      SELECT * FROM aux.t2;
    }
  } {a 1 b 2}
} ;# endif json1
} ;# endif trigger

# 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;
  }
} {0 {}}
if {$tcl_platform(platform)=="unix"} {
  do_test attach-6.2 {
    sqlite3 dbx cannot-read
    dbx eval {CREATE TABLE t1(a,b,c)}
    dbx close
    file attributes cannot-read -permission 0000
    if {[file writable cannot-read]} {
      puts "\n**** Tests do not work when run as root ****"
      forcedelete cannot-read
      exit 1
    }
    catchsql {
      ATTACH DATABASE 'cannot-read' AS noread;
    }
  } {1 {unable to open database: cannot-read}}
  do_test attach-6.2.2 {
    db errorcode
  } {14}
  forcedelete cannot-read
}

# Check the error message if we try to access a database that has
# not been attached.
do_test attach-6.3 {
  catchsql {
    CREATE TABLE no_such_db.t1(a, b, c);
  }
} {1 {unknown database no_such_db}}
for {set i 2} {$i<=15} {incr i} {
  catch {db$i close}
}
db close
forcedelete test2.db
forcedelete no-such-file

ifcapable subquery {
  do_test attach-7.1 {
    forcedelete test.db test.db-journal
    sqlite3 db test.db
    catchsql {
      DETACH RAISE ( IGNORE ) IN ( SELECT "AAAAAA" . * ORDER BY 
      REGISTER LIMIT "AAAAAA" . "AAAAAA" OFFSET RAISE ( IGNORE ) NOT NULL )
    }
  } {1 {no such table: AAAAAA}}
}

# Create a malformed file (a file that is not a valid database)
# and try to attach it
#
do_test attach-8.1 {
  set fd [open test2.db w]
  puts $fd "This file is not a valid SQLite database"
  close $fd
  catchsql {
    ATTACH 'test2.db' AS t2;
  }
} {1 {file is not a database}}
do_test attach-8.2 {
  db errorcode
} {26}
forcedelete test2.db
do_test attach-8.3 {
  sqlite3 db2 test2.db
  db2 eval {CREATE TABLE t1(x); BEGIN EXCLUSIVE}
  catchsql {
    ATTACH 'test2.db' AS t2;
  }
} {1 {database is locked}}
do_test attach-8.4 {
  db errorcode
} {5}
db2 close
forcedelete test2.db

# Test that it is possible to attach the same database more than
# once when not in shared-cache mode. That this is not possible in
# shared-cache mode is tested in shared7.test.
do_test attach-9.1 {
  forcedelete test4.db
  execsql {
    ATTACH 'test4.db' AS aux1;
    CREATE TABLE aux1.t1(a, b);
    INSERT INTO aux1.t1 VALUES(1, 2);
    ATTACH 'test4.db' AS aux2;
    SELECT * FROM aux2.t1;
  }
} {1 2}
do_test attach-9.2 {
  catchsql {
    BEGIN;
      INSERT INTO aux1.t1 VALUES(3, 4);
      INSERT INTO aux2.t1 VALUES(5, 6);
  }
} {1 {database is locked}}
do_test attach-9.3 {
  execsql {
    COMMIT;
    SELECT * FROM aux2.t1;
  }
} {1 2 3 4}

# Ticket [abe728bbc311d81334dae9762f0db87c07a98f79].
# Multi-database commit on an attached TEMP database.
#
do_test attach-10.1 {
  execsql {
    ATTACH '' AS noname;
    ATTACH ':memory:' AS inmem;
    BEGIN;
    CREATE TABLE noname.noname(x);
    CREATE TABLE inmem.inmem(y);
    CREATE TABLE main.main(z);
    COMMIT;
    SELECT name FROM noname.sqlite_master;
    SELECT name FROM inmem.sqlite_master;
  }
} {noname inmem}
do_test attach-10.2 {
  lrange [execsql {
    PRAGMA database_list;
  }] 9 end
} {4 noname {} 5 inmem {}}

# Attach with a very long URI filename.
#
db close
sqlite3 db test.db -uri 1
do_execsql_test attach-11.1 {
  ATTACH printf('file:%09000x/x.db?mode=memory&cache=shared',1) AS aux1;
  CREATE TABLE aux1.t1(x,y);
  INSERT INTO aux1.t1(x,y) VALUES(1,2),(3,4);
  SELECT * FROM aux1.t1;
} {1 2 3 4}

# Ticket https://sqlite.org/src/tktview/a4e06e75a9ab61a1  2017-07-15
# False positive when running integrity_check on a connection with
# attached databases.  
#
db close
sqlite3 db :memory:
do_execsql_test attach-12.1 {
  CREATE TABLE Table1 (col TEXT NOT NULL PRIMARY KEY);
  ATTACH ':memory:' AS db2;
  CREATE TABLE db2.Table2(col1 INTEGER, col2 INTEGER, col3 INTEGER, col4);
  CREATE UNIQUE INDEX db2.idx_col1_unique ON Table2 (col1);
  CREATE UNIQUE INDEX db2.idx_col23_unique ON Table2 (col2, col3);
  CREATE INDEX db2.idx_col2 ON Table2 (col2);
  INSERT INTO Table2 VALUES(1,2,3,4);
  PRAGMA integrity_check;
} {ok}

# 2021-03-10 Forum post https://sqlite.org/forum/forumpost/a006d86f72
#
reset_db
do_test attach-13.1 {
  sqlite3 db :memory:
  db eval {CREATE TABLE base(x);}
  for {set i 0} {$i<$SQLITE_MAX_ATTACHED} {incr i} {
    db eval "ATTACH ':memory:' AS a$i"
  }
  set m "a[expr {$SQLITE_MAX_ATTACHED-1}]"
  db eval "CREATE TABLE $m.t1(a INTEGER PRIMARY KEY, b);"
  db eval "CREATE TABLE $m.t2(a INTEGER PRIMARY KEY, b);"
  db eval {SELECT a FROM t1 WHERE b IN (SELECT a FROM t2);}
} {}

finish_test