mirror of
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6dcdc419c1
Conflicts: README.md
390 lines
20 KiB
C++
390 lines
20 KiB
C++
/*
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* Copyright (c) 2013-2015, Roland Bock
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <iostream>
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#include "Sample.h"
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#include "MockDb.h"
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#include "is_regular.h"
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#include <sqlpp11/alias_provider.h>
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#include <sqlpp11/select.h>
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#include <sqlpp11/functions.h>
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#include <sqlpp11/connection.h>
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namespace alias
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{
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SQLPP_ALIAS_PROVIDER(a)
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SQLPP_ALIAS_PROVIDER(b)
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SQLPP_ALIAS_PROVIDER(left)
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SQLPP_ALIAS_PROVIDER(right)
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}
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int SelectType(int, char* [])
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{
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MockDb db = {};
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MockDb::_serializer_context_t printer = {};
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auto f = test::TabFoo{};
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auto t = test::TabBar{};
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// Test a table
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{
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using T = typename std::decay<decltype(t)>::type;
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static_assert(not sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_integral_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_floating_point_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test an alias of table
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{
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using T = decltype(t.as(alias::a));
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static_assert(not sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_integral_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_floating_point_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test an integral column of an alias of table
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{
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using T = decltype(t.as(alias::a).alpha);
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static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(sqlpp::is_integral_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_floating_point_t<T>::value, "type requirement");
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static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test an integral table column
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{
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using T = decltype(t.alpha);
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static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(sqlpp::is_integral_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_floating_point_t<T>::value, "type requirement");
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static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test a floating point table column
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{
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using T = decltype(f.omega);
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static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_integral_t<T>::value, "type requirement");
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static_assert(sqlpp::is_floating_point_t<T>::value, "type requirement");
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static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test a an alias of a numeric table column
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{
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using T = decltype(t.alpha.as(alias::a));
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static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test a select of a single column without a from
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{
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using T = decltype(select(t.alpha));
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static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test a select of a single numeric table column
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{
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using T = decltype(select(t.alpha).from(t));
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// static_assert(sqlpp::is_select_column_list_t<decltype(T::_column_list)>::value, "Must not be noop");
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// static_assert(sqlpp::is_from_t<decltype(T::_from)>::value, "Must not be noop");
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static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test a select of an alias of a single numeric table column
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{
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using T = decltype(select(t.alpha.as(alias::a)).from(t));
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static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test an alias of a select of a single numeric table column
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{
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using T = decltype(select(t.alpha).from(t).as(alias::b));
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static_assert(not sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "red to not be boolean");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test the column of an alias of a select of an alias of a single numeric table column
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{
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using T = decltype(select(t.alpha.as(alias::a)).from(t).as(alias::b));
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static_assert(not sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test the column of an alias of a select of a single numeric table column
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{
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using T = decltype(select(t.alpha).from(t).as(alias::b).alpha);
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static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test an alias of a select of an alias of a single numeric table column
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{
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using T = decltype(select(t.alpha.as(alias::a)).from(t).as(alias::b).a);
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static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
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static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
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static_assert(sqlpp::is_selectable_t<T>::value, "type requirement");
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static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
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static_assert(sqlpp::must_not_insert_t<T>::value, "type requirement");
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static_assert(sqlpp::must_not_update_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
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static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test that all_of(tab) is expanded in select
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{
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auto a = select(all_of(t));
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auto b = select(t.alpha, t.beta, t.gamma, t.delta);
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// auto c = select(t);
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static_assert(std::is_same<decltype(a), decltype(b)>::value, "all_of(t) has to be expanded by select()");
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// static_assert(std::is_same<decltype(b), decltype(c)>::value, "t has to be expanded by select()");
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}
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// Test that all_of(tab) is expanded in multi_column
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{
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auto a = multi_column(all_of(t)).as(alias::a);
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auto b = multi_column(t.alpha, t.beta, t.gamma, t.delta).as(alias::a);
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static_assert(std::is_same<decltype(a), decltype(b)>::value, "all_of(t) has to be expanded by multi_column");
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}
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// Test that a multicolumn is not a value
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{
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auto m = multi_column(t.alpha, t.beta).as(alias::a);
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static_assert(not sqlpp::is_expression_t<decltype(m)>::value, "a multi_column is not a value");
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}
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// Test result field indices
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{
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using Select = decltype(select(all_of(t), // index 0, 1, 2, 3 (alpha, beta, gamma, delta)
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multi_column(all_of(t)).as(alias::left), // index 4 (including 4, 5, 6, 7)
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multi_column(all_of(t)).as(alias::right), // index 8 (including 8, 9, 10, 11)
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t.alpha.as(alias::a) // index 12
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)
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.from(t)
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.where(true)); // next index is 13
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using ResultRow = typename Select::_result_methods_t<Select>::template _result_row_t<MockDb>;
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using IndexSequence = ResultRow::_field_index_sequence;
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static_assert(std::is_same<IndexSequence, sqlpp::detail::field_index_sequence<13, 0, 1, 2, 3, 4, 8, 12>>::value,
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"invalid field sequence");
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}
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// Test that result sets with identical name/value combinations have identical types
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{
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auto a = select(t.alpha);
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auto b = select(f.epsilon.as(t.alpha));
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using A = typename decltype(a)::_result_row_t<MockDb>;
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using B = typename decltype(b)::_result_row_t<MockDb>;
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static_assert(
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std::is_same<sqlpp::value_type_of<decltype(t.alpha)>, sqlpp::value_type_of<decltype(f.epsilon)>>::value,
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"Two bigint columns must have identical base_value_type");
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static_assert(std::is_same<A, B>::value,
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"select with identical columns(name/value_type) need to have identical result_types");
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}
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for (const auto& row : db(select(all_of(t)).from(t).where(true)))
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{
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int64_t a = row.alpha;
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std::cout << a << std::endl;
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}
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{
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auto s = dynamic_select(db, all_of(t)).dynamic_from().dynamic_where().dynamic_limit().dynamic_offset();
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s.from.add(t);
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s.where.add_ntc(t.alpha > 7 and t.alpha == any(select(t.alpha).from(t).where(t.alpha < 3)));
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s.limit.set(30);
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s.limit.set(3);
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std::cerr << "------------------------\n";
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serialize(s, printer).str();
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std::cerr << "------------------------\n";
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using T = decltype(s);
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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// Test that select can be called with zero columns if it is used with dynamic columns.
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{
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auto s = dynamic_select(db).dynamic_columns().extra_tables(t);
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s.selected_columns.add(t.alpha);
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serialize(s, printer).str();
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}
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// Test that verbatim_table compiles
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{
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auto s = select(t.alpha).from(sqlpp::verbatim_table("my_unknown_table"));
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serialize(s, printer).str();
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}
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static_assert(sqlpp::is_select_flag_t<decltype(sqlpp::all)>::value, "sqlpp::all has to be a select_flag");
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using T = sqlpp::wrap_operand<int>::type;
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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static_assert(sqlpp::is_expression_t<T>::value, "T has to be an expression");
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static_assert(sqlpp::is_numeric_t<T>::value, "T has to be numeric");
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static_assert(sqlpp::is_numeric_t<decltype(t.alpha)>::value, "TabBar.alpha has to be a numeric");
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((t.alpha + 7) + 4).asc();
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static_assert(sqlpp::is_boolean_t<decltype(t.gamma == t.gamma)>::value, "Comparison expression have to be boolean");
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!t.gamma;
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serialize(t.beta < "kaesekuchen", printer).str();
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serialize(t.beta + "hallenhalma", printer).str();
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static_assert(sqlpp::must_not_insert_t<decltype(t.alpha)>::value, "alpha must not be inserted");
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serialize(t.alpha, printer).str();
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std::cerr << "\n" << sizeof(test::TabBar) << std::endl;
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static_assert(sqlpp::is_selectable_t<decltype(t.alpha)>::value, "alpha should be a named expression");
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static_assert(sqlpp::is_selectable_t<decltype(t.alpha.as(alias::a))>::value,
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"an alias of alpha should be a named expression");
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static_assert(sqlpp::is_alias_t<decltype(t.alpha.as(alias::a))>::value, "an alias of alpha should be an alias");
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auto l = t.as(alias::left);
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auto r = select(t.gamma.as(alias::a)).from(t).where(t.gamma == true).as(alias::right);
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static_assert(sqlpp::is_boolean_t<decltype(select(t.gamma).from(t))>::value, "select(bool) has to be a bool");
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static_assert(sqlpp::is_boolean_t<decltype(select(r.a).from(r))>::value, "select(bool) has to be a bool");
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auto s1 = sqlpp::select()
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.flags(sqlpp::distinct, sqlpp::straight_join)
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.columns(l.gamma, r.a)
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.from(r, t, l)
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.where(t.beta == "hello world" and select(t.gamma).from(t)) // .as(alias::right))
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.group_by(l.gamma, r.a)
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.having(r.a != true)
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.order_by(l.beta.asc())
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.limit(17)
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.offset(3)
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.as(alias::a);
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return 0;
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}
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