sqlpp11/tests/core/serialize/SelectAs.cpp

/*
 * Copyright (c) 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:
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 *  * Redistributions of source code must retain the above copyright notice,
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 *  * Redistributions in binary form must reproduce the above copyright notice,
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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#include "compare.h"
#include "Sample.h"
#include <sqlpp11/sqlpp11.h>

#include <iostream>

SQLPP_ALIAS_PROVIDER(cheese)

int SelectAs(int, char*[])
{
  const auto foo = test::TabFoo{};
  const auto bar = test::TabBar{};

  // SELECT...AS as selectable column
  compare(__LINE__, select(foo.doubleN, select(count(bar.id)).from(bar).unconditionally().as(cheese)), "SELECT tab_foo.double_n,(SELECT COUNT(tab_bar.id) AS count_ FROM tab_bar) AS cheese");

  return 0;
}