# 2002 May 24

#

# 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 joins, including outer joins.

#

# $Id: join2.test,v 1.2 2005/01/21 03:12:16 danielk1977 Exp $

set testdir [file dirname $argv0]

source $testdir/tester.tcl

do_test join2-1.1 {

  execsql {

    CREATE TABLE t1(a,b);

    INSERT INTO t1 VALUES(1,11);

    INSERT INTO t1 VALUES(2,22);

    INSERT INTO t1 VALUES(3,33);

    SELECT * FROM t1;

  }  

} {1 11 2 22 3 33}

do_test join2-1.2 {

  execsql {

    CREATE TABLE t2(b,c);

    INSERT INTO t2 VALUES(11,111);

    INSERT INTO t2 VALUES(33,333);

    INSERT INTO t2 VALUES(44,444);

    SELECT * FROM t2;

  }  

} {11 111 33 333 44 444};

do_test join2-1.3 {

  execsql {

    CREATE TABLE t3(c,d);

    INSERT INTO t3 VALUES(111,1111);

    INSERT INTO t3 VALUES(444,4444);

    INSERT INTO t3 VALUES(555,5555);

    SELECT * FROM t3;

  }  

} {111 1111 444 4444 555 5555}

do_test join2-1.4 {

  execsql {

    SELECT * FROM

      t1 NATURAL JOIN t2 NATURAL JOIN t3

  }

} {1 11 111 1111}

do_test join2-1.5 {

  execsql {

    SELECT * FROM

      t1 NATURAL JOIN t2 NATURAL LEFT OUTER JOIN t3

  }

} {1 11 111 1111 3 33 333 {}}

do_test join2-1.6 {

  execsql {

    SELECT * FROM

      t1 NATURAL LEFT OUTER JOIN t2 NATURAL JOIN t3

  }

} {1 11 111 1111}

ifcapable subquery {

  do_test join2-1.7 {

    execsql {

      SELECT * FROM

        t1 NATURAL LEFT OUTER JOIN (t2 NATURAL JOIN t3)

    }

  } {1 11 111 1111 2 22 {} {} 3 33 {} {}}

}

finish_test