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54 lines
1.5 KiB
C++
54 lines
1.5 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: calpontsystemcatalog.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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#pragma once
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namespace dbcon
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{
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class CalpontSystemCatalog
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{
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public:
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/** looks up a column's TCN in the System Catalog
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*
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* For a unique table_name.column_name return the internal TCN
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*/
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TCN lookupTCN(const TableColName& tableColName) const;
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/** returns the colunm type attribute(s) for a column
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*
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* return the various colunm attributes for a given TCN:
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* dictionary/native
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* DDN
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*/
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ColType colType(const TCN& tcn) const;
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/** return the current SCN
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*
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* returns the current System Change Number (for versioning support)
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*/
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SCN scn(void) const;
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};
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} // namespace dbcon
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