# 2022-05-24
#
# 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.
#
#***********************************************************************
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix upfrom4

do_execsql_test 100 {
  DROP TABLE IF EXISTS t5;
  DROP TABLE IF EXISTS m1;
  DROP TABLE IF EXISTS m2;
  CREATE TABLE t5(a INTEGER PRIMARY KEY, b TEXT, c TEXT);
  CREATE TABLE m1(x INTEGER PRIMARY KEY, y TEXT);
  CREATE TABLE m2(u INTEGER PRIMARY KEY, v TEXT);

  INSERT INTO t5 VALUES(1, 'one', 'ONE');
  INSERT INTO t5 VALUES(2, 'two', 'TWO');
  INSERT INTO t5 VALUES(3, 'three', 'THREE');
  INSERT INTO t5 VALUES(4, 'four', 'FOUR');

  INSERT INTO m1 VALUES(1, 'i');
  INSERT INTO m1 VALUES(2, 'ii');
  INSERT INTO m1 VALUES(3, 'iii');

  INSERT INTO m2 VALUES(1, 'I');
  INSERT INTO m2 VALUES(3, 'II');
  INSERT INTO m2 VALUES(4, 'III');
  SELECT * FROM t5;
} {1 one ONE 2 two TWO 3 three THREE 4 four FOUR}

do_execsql_test 110 {
  BEGIN;
  UPDATE t5 SET b=y, c=v FROM m1 LEFT JOIN m2 ON (x=u) WHERE x=a;
  SELECT * FROM t5 ORDER BY a;
  ROLLBACK;
} {1 i I 2 ii {} 3 iii II 4 four FOUR}

do_execsql_test 120 {
  BEGIN;
  UPDATE t5 SET b=y, c=v FROM m2 RIGHT JOIN m1 ON (x=u) WHERE x=a;
  SELECT * FROM t5 ORDER BY a;
  ROLLBACK;
} {1 i I 2 ii {} 3 iii II 4 four FOUR}


finish_test