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64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/***********************************************************************
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* $Id: ha_view.h 9210 2013-01-21 14:10:42Z rdempsey $
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*
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*
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***********************************************************************/
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/** @file */
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/** class View interface */
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#pragma once
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// #undef LOG_INFO
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#include "ha_mcs_impl_if.h"
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#include "idb_mysql.h"
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namespace execplan
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{
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class CalpontSystemCatalog;
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}
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namespace cal_impl_if
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{
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class View
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{
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public:
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View(SELECT_LEX& select, gp_walk_info* parentGwip) : fSelect(select), fParentGwip(parentGwip)
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{
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}
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~View() = default;
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execplan::CalpontSystemCatalog::TableAliasName& viewName();
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void viewName(execplan::CalpontSystemCatalog::TableAliasName& viewName);
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/** get execution plan for this view. merge the table list and join list to the
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parent select.
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*/
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void transform();
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uint32_t processJoin(gp_walk_info& gwi, std::stack<execplan::ParseTree*>&);
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private:
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// Lifetime of fSelect is managed by MDB and must be longer than View object
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SELECT_LEX& fSelect;
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gp_walk_info* fParentGwip;
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execplan::CalpontSystemCatalog::TableAliasName fViewName;
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};
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} // namespace cal_impl_if
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