# 2022-04-16
#
# 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 RIGHT and FULL OUTER JOINs.

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

foreach {id schema} {
  1 {
    CREATE TABLE t4(id INTEGER PRIMARY KEY, x TEXT);
    CREATE TABLE t5(id INTEGER PRIMARY KEY, y TEXT);
    CREATE TABLE t6(id INTEGER PRIMARY KEY, z INT);
    INSERT INTO t4(id,x) VALUES(2,'alice'),(4,'bob'),(6,'cindy'),(8,'dave');
    INSERT INTO t5(id,y) VALUES(1,'red'),(2,'orange'),(3,'yellow'),(4,'green'),
                               (5,'blue');
    INSERT INTO t6(id,z) VALUES(3,333),(4,444),(5,555),(0,1000),(9,999);
  }
} {
  reset_db
  db nullvalue -
  do_execsql_test join9-$id.setup $schema {}
  do_execsql_test join9-$id.10 {
    SELECT *, t4.id, t5.id, t6.id
      FROM t4 NATURAL LEFT JOIN t5 NATURAL LEFT JOIN t6
     ORDER BY id;
  } {
    2   alice  orange  -    2   2   - 
    4   bob    green   444  4   4   4 
    6   cindy  -       -    6   -   - 
    8   dave   -       -    8   -   - 
  }
  do_execsql_test join9-$id.20 {
    SELECT *, t4.id, t5.id, t6.id
      FROM t4 NATURAL RIGHT JOIN t5 NATURAL RIGHT JOIN t6
     ORDER BY id;
  } {
    0   -    -       1000  -   -   0 
    3   -    yellow  333   -   3   3 
    4   bob  green   444   4   4   4 
    5   -    blue    555   -   5   5 
    9   -    -       999   -   -   9 
  }
  do_execsql_test join9-$id.30 {
    SELECT *, t4.id, t5.id, t6.id
      FROM t4 NATURAL FULL JOIN t5 NATURAL FULL JOIN t6
     ORDER BY id;
  } {
    0    -      -       1000  -   -   0 
    1    -      red     -     -   1   - 
    2    alice  orange  -     2   2   - 
    3    -      yellow  333   -   3   3 
    4    bob    green   444   4   4   4 
    5    -      blue    555   -   5   5 
    6    cindy  -       -     6   -   - 
    8    dave   -       -     8   -   - 
    9    -      -       999   -   -   9 
  }
}  
finish_test