mirror of
https://github.com/rbock/sqlpp11.git
synced 2024-11-16 04:47:18 +08:00
49 lines
2.1 KiB
C++
49 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2023-2023, 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 "compare.h"
|
|
#include <sqlpp11/sqlpp11.h>
|
|
|
|
int Avg(int, char* [])
|
|
{
|
|
const auto bar = test::TabBar{};
|
|
|
|
// Single column.
|
|
compare(__LINE__, avg(bar.alpha), "AVG(tab_bar.alpha)");
|
|
compare(__LINE__, avg(sqlpp::distinct, bar.alpha), "AVG(DISTINCT tab_bar.alpha)");
|
|
|
|
// Expression.
|
|
// Note that the inner parens aren't necessary.
|
|
compare(__LINE__, avg(bar.alpha + 7), "AVG((tab_bar.alpha+7))");
|
|
compare(__LINE__, avg(sqlpp::distinct, bar.alpha + 7), "AVG(DISTINCT (tab_bar.alpha+7))");
|
|
|
|
// With sub select.
|
|
compare(__LINE__, avg(select(sqlpp::value(7).as(sqlpp::alias::a))), "AVG((SELECT 7 AS a))");
|
|
compare(__LINE__, avg(sqlpp::distinct, select(sqlpp::value(7).as(sqlpp::alias::a))), "AVG(DISTINCT (SELECT 7 AS a))");
|
|
|
|
return 0;
|
|
}
|