# 2012 August 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.  The
# focus of this file is testing that an index may be used as a covering
# index when there are OR expressions in the WHERE clause. 
#


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

do_execsql_test 1.1 {
  CREATE TABLE t(i,j,k);
  CREATE INDEX i ON t(i,j,k);

  INSERT INTO t VALUES(3, 3, 'three');
  INSERT INTO t VALUES(2, 2, 'two');
  INSERT INTO t VALUES(1, 1, 'one');
  INSERT INTO t VALUES(4, 4, 'four');
}

do_execsql_test 1.2 {
  SELECT k FROM t WHERE (i=1 AND j=1) OR (i=2 AND j=2);
} {one two}

finish_test