sqlpp11/tests/Union.cpp

/*
 * Copyright (c) 2013-2015, Roland Bock
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 * 
 *  * Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "Sample.h"
#include "MockDb.h"
#include <sqlpp11/select.h>
#include <sqlpp11/alias_provider.h>
#include <iostream>

int Union(int, char**)
{
	MockDb db;
	MockDb::_serializer_context_t printer;

	test::TabBar t;
	test::TabFoo f;

	db(select(t.alpha).from(t).where(true)
			.union_distinct(select(f.epsilon.as(t.alpha)).from(f).where(true)));
	db(select(t.alpha).from(t).where(true)
			.union_all(select(f.epsilon.as(t.alpha)).from(f).where(true)));

	auto u = select(t.alpha).from(t).where(true).union_all(select(f.epsilon.as(t.alpha)).from(f).where(true)).as(sqlpp::alias::u);

	db(select(all_of(u)).from(u).where(true).union_all(select(t.delta.as(t.alpha)).from(t).where(true)));
	db(select(u.alpha).from(u).where(true).union_all(select(t.delta.as(t.alpha)).from(t).where(true)));

	db(select(t.alpha).from(t).where(true).union_all(select(t.alpha).from(t).where(true)).union_all(select(t.alpha).from(t).where(true)));

	return 0;
}