# 2001 October 7

#

# 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.

#

# This file implements tests for temporary tables and indices.

#

# $Id: temptable.test,v 1.19 2007/10/09 08:29:33 danielk1977 Exp $

set testdir [file dirname $argv0]

source $testdir/tester.tcl

ifcapable !tempdb {

  finish_test

  return

}

# Create an alternative connection to the database

#

do_test temptable-1.0 {

  sqlite3 db2 ./test.db

  set dummy {}

} {}

# Create a permanent table.

#

do_test temptable-1.1 {

  execsql {CREATE TABLE t1(a,b,c);}

  execsql {INSERT INTO t1 VALUES(1,2,3);}

  execsql {SELECT * FROM t1}

} {1 2 3}

do_test temptable-1.2 {

  catch {db2 eval {SELECT * FROM sqlite_master}}

  db2 eval {SELECT * FROM t1}

} {1 2 3}

do_test temptable-1.3 {

  execsql {SELECT name FROM sqlite_master}

} {t1}

do_test temptable-1.4 {

  db2 eval {SELECT name FROM sqlite_master}

} {t1}

# Create a temporary table.  Verify that only one of the two

# processes can see it.

#

do_test temptable-1.5 {

  db2 eval {

    CREATE TEMP TABLE t2(x,y,z);

    INSERT INTO t2 VALUES(4,5,6);

  }

  db2 eval {SELECT * FROM t2}

} {4 5 6}

do_test temptable-1.6 {

  catch {execsql {SELECT * FROM sqlite_master}}

  catchsql {SELECT * FROM t2}

} {1 {no such table: t2}}

do_test temptable-1.7 {

  catchsql {INSERT INTO t2 VALUES(8,9,0);}

} {1 {no such table: t2}}

do_test temptable-1.8 {

  db2 eval {INSERT INTO t2 VALUES(8,9,0);}

  db2 eval {SELECT * FROM t2 ORDER BY x}

} {4 5 6 8 9 0}

do_test temptable-1.9 {

  db2 eval {DELETE FROM t2 WHERE x==8}

  db2 eval {SELECT * FROM t2 ORDER BY x}

} {4 5 6}

do_test temptable-1.10 {

  db2 eval {DELETE FROM t2}

  db2 eval {SELECT * FROM t2}

} {}

do_test temptable-1.11 {

  db2 eval {

     INSERT INTO t2 VALUES(7,6,5);

     INSERT INTO t2 VALUES(4,3,2);

     SELECT * FROM t2 ORDER BY x;

  }

} {4 3 2 7 6 5}

do_test temptable-1.12 {

  db2 eval {DROP TABLE t2;}

  set r [catch {db2 eval {SELECT * FROM t2}} msg]

  lappend r $msg

} {1 {no such table: t2}}

# Make sure temporary tables work with transactions

#

do_test temptable-2.1 {

  execsql {

    BEGIN TRANSACTION;

    CREATE TEMPORARY TABLE t2(x,y);

    INSERT INTO t2 VALUES(1,2);

    SELECT * FROM t2;

  }

} {1 2}

do_test temptable-2.2 {

  execsql {ROLLBACK}

  catchsql {SELECT * FROM t2}

} {1 {no such table: t2}}

do_test temptable-2.3 {

  execsql {

    BEGIN TRANSACTION;

    CREATE TEMPORARY TABLE t2(x,y);

    INSERT INTO t2 VALUES(1,2);

    SELECT * FROM t2;

  }

} {1 2}

do_test temptable-2.4 {

  execsql {COMMIT}

  catchsql {SELECT * FROM t2}

} {0 {1 2}}

do_test temptable-2.5 {

  set r [catch {db2 eval {SELECT * FROM t2}} msg]

  lappend r $msg

} {1 {no such table: t2}}

# Make sure indices on temporary tables are also temporary.

#

do_test temptable-3.1 {

  execsql {

    CREATE INDEX i2 ON t2(x);

    SELECT name FROM sqlite_master WHERE type='index';

  }

} {}

do_test temptable-3.2 {

  execsql {

    SELECT y FROM t2 WHERE x=1;

  }

} {2}

do_test temptable-3.3 {

  execsql {

    DROP INDEX i2;

    SELECT y FROM t2 WHERE x=1;

  }

} {2}

do_test temptable-3.4 {

  execsql {

    CREATE INDEX i2 ON t2(x);

    DROP TABLE t2;

  }

  catchsql {DROP INDEX i2}

} {1 {no such index: i2}}

# Check for correct name collision processing. A name collision can

# occur when process A creates a temporary table T then process B

# creates a permanent table also named T.  The temp table in process A

# hides the existance of the permanent table.

#

do_test temptable-4.1 {

  execsql {

    CREATE TEMP TABLE t2(x,y);

    INSERT INTO t2 VALUES(10,20);

    SELECT * FROM t2;

  } db2

} {10 20}

do_test temptable-4.2 {

  execsql {

    CREATE TABLE t2(x,y,z);

    INSERT INTO t2 VALUES(9,8,7);

    SELECT * FROM t2;

  }

} {9 8 7}

do_test temptable-4.3 {

  catchsql {

    SELECT * FROM t2;

  } db2

} {0 {10 20}}

do_test temptable-4.4.1 {

  catchsql {

    SELECT * FROM temp.t2;

  } db2

} {0 {10 20}}

do_test temptable-4.4.2 {

  catchsql {

    SELECT * FROM main.t2;

  } db2

} {1 {no such table: main.t2}}

#do_test temptable-4.4.3 {

#  catchsql {

#    SELECT name FROM main.sqlite_master WHERE type='table';

#  } db2

#} {1 {database schema has changed}}

do_test temptable-4.4.4 {

  catchsql {

    SELECT name FROM main.sqlite_master WHERE type='table';

  } db2

} {0 {t1 t2}}

do_test temptable-4.4.5 {

  catchsql {

    SELECT * FROM main.t2;

  } db2

} {0 {9 8 7}}

do_test temptable-4.4.6 {

  # TEMP takes precedence over MAIN

  catchsql {

    SELECT * FROM t2;

  } db2

} {0 {10 20}}

do_test temptable-4.5 {

  catchsql {

    DROP TABLE t2;     -- should drop TEMP

    SELECT * FROM t2;  -- data should be from MAIN

  } db2

} {0 {9 8 7}}

do_test temptable-4.6 {

  db2 close

  sqlite3 db2 ./test.db

  catchsql {

    SELECT * FROM t2;

  } db2

} {0 {9 8 7}}

do_test temptable-4.7 {

  catchsql {

    DROP TABLE t2;

    SELECT * FROM t2;

  }

} {1 {no such table: t2}}

do_test temptable-4.8 {

  db2 close

  sqlite3 db2 ./test.db

  execsql {

    CREATE TEMP TABLE t2(x unique,y);

    INSERT INTO t2 VALUES(1,2);

    SELECT * FROM t2;

  } db2

} {1 2}

do_test temptable-4.9 {

  execsql {

    CREATE TABLE t2(x unique, y);

    INSERT INTO t2 VALUES(3,4);

    SELECT * FROM t2;

  }

} {3 4}

do_test temptable-4.10.1 {

  catchsql {

    SELECT * FROM t2;

  } db2

} {0 {1 2}}

# Update: The schema is reloaded in test temptable-4.10.1. And tclsqlite.c

#         handles it and retries the query anyway.

# do_test temptable-4.10.2 {

#   catchsql {

#     SELECT name FROM sqlite_master WHERE type='table'

#   } db2

# } {1 {database schema has changed}}

do_test temptable-4.10.3 {

  catchsql {

    SELECT name FROM sqlite_master WHERE type='table'

  } db2

} {0 {t1 t2}}

do_test temptable-4.11 {

  execsql {

    SELECT * FROM t2;

  } db2

} {1 2}

do_test temptable-4.12 {

  execsql {

    SELECT * FROM t2;

  }

} {3 4}

do_test temptable-4.13 {

  catchsql {

    DROP TABLE t2;     -- drops TEMP.T2

    SELECT * FROM t2;  -- uses MAIN.T2

  } db2

} {0 {3 4}}

do_test temptable-4.14 {

  execsql {

    SELECT * FROM t2;

  }

} {3 4}

do_test temptable-4.15 {

  db2 close

  sqlite3 db2 ./test.db

  execsql {

    SELECT * FROM t2;

  } db2

} {3 4}

# Now create a temporary table in db2 and a permanent index in db.  The

# temporary table in db2 should mask the name of the permanent index,

# but the permanent index should still be accessible and should still

# be updated when its corresponding table changes.

#

do_test temptable-5.1 {

  execsql {

    CREATE TEMP TABLE mask(a,b,c)

  } db2

  execsql {

    CREATE INDEX mask ON t2(x);

    SELECT * FROM t2;

  }

} {3 4}

#do_test temptable-5.2 {

#  catchsql {

#    SELECT * FROM t2;

#  } db2

#} {1 {database schema has changed}}

do_test temptable-5.3 {

  catchsql {

    SELECT * FROM t2;

  } db2

} {0 {3 4}}

do_test temptable-5.4 {

  execsql {

    SELECT y FROM t2 WHERE x=3

  }

} {4}

do_test temptable-5.5 {

  execsql {

    SELECT y FROM t2 WHERE x=3

  } db2

} {4}

do_test temptable-5.6 {

  execsql {

    INSERT INTO t2 VALUES(1,2);

    SELECT y FROM t2 WHERE x=1;

  } db2

} {2}

do_test temptable-5.7 {

  execsql {

    SELECT y FROM t2 WHERE x=3

  } db2

} {4}

do_test temptable-5.8 {

  execsql {

    SELECT y FROM t2 WHERE x=1;

  }

} {2}

do_test temptable-5.9 {

  execsql {

    SELECT y FROM t2 WHERE x=3

  }

} {4}

db2 close

# Test for correct operation of read-only databases

#

do_test temptable-6.1 {

  execsql {

    CREATE TABLE t8(x);

    INSERT INTO t8 VALUES('xyzzy');

    SELECT * FROM t8;

  }

} {xyzzy}

do_test temptable-6.2 {

  db close

  catch {file attributes test.db -permissions 0444}

  catch {file attributes test.db -readonly 1}

  sqlite3 db test.db

  if {[file writable test.db]} {

    error "Unable to make the database file test.db readonly - rerun this test as an unprivileged user"

  }

  execsql {

    SELECT * FROM t8;

  }

} {xyzzy}

do_test temptable-6.3 {

  if {[file writable test.db]} {

    error "Unable to make the database file test.db readonly - rerun this test as an unprivileged user"

  }

  catchsql {

    CREATE TABLE t9(x,y);

  }

} {1 {attempt to write a readonly database}}

do_test temptable-6.4 {

  catchsql {

    CREATE TEMP TABLE t9(x,y);

  }

} {0 {}}

do_test temptable-6.5 {

  catchsql {

    INSERT INTO t9 VALUES(1,2);

    SELECT * FROM t9;

  }

} {0 {1 2}}

do_test temptable-6.6 {

  if {[file writable test.db]} {

    error "Unable to make the database file test.db readonly - rerun this test as an unprivileged user"

  }

  catchsql {

    INSERT INTO t8 VALUES('hello');

    SELECT * FROM t8;

  }

} {1 {attempt to write a readonly database}}

do_test temptable-6.7 {

  catchsql {

    SELECT * FROM t8,t9;

  }

} {0 {xyzzy 1 2}}

do_test temptable-6.8 {

  db close

  sqlite3 db test.db

  catchsql {

    SELECT * FROM t8,t9;

  }

} {1 {no such table: t9}}

file delete -force test2.db test2.db-journal

ifcapable attach {

  do_test temptable-7.1 {

    catchsql {

      ATTACH 'test2.db' AS two;

      CREATE TEMP TABLE two.abc(x,y);

    }

  } {1 {temporary table name must be unqualified}}

}

# Need to do the following for tcl 8.5 on mac. On that configuration, the

# -readonly flag is taken so seriously that a subsequent [file delete -force]

# (required before the next test file can be executed) will fail.

#

catch {file attributes test.db -readonly 0}

finish_test