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d4d0ebdf5d
1) Instead of making dbrm calls to writeVBEntry() per block,
we make these calls per batch. This can have non-trivial
reductions in the overhead of these calls if the batch size
is large.
2) In dmlproc, do not deserialize the whole insertpackage, which
consists of the complete record set per column, which would be
wasteful as we only need some metadata fields from insertpackage
here. This is only done for batch inserts at the moment, this
should also be applied to single inserts.
120 lines
2.7 KiB
C++
120 lines
2.7 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: dmltable.cpp 9210 2013-01-21 14:10:42Z rdempsey $
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*
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*
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***********************************************************************/
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#include "dmltable.h"
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using namespace std;
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namespace dmlpackage
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{
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DMLTable::DMLTable()
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{}
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DMLTable::~DMLTable()
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{
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try
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{
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RowList::iterator it = fRows.begin();
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while (it != fRows.end())
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{
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delete *it;
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it++;
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}
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}
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catch (...)
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{
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cout << "failed to delete the table rows" << endl;
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}
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}
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int DMLTable::read(messageqcpp::ByteStream& bytestream)
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{
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int retval = 1;
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// read the table name
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bytestream >> fName;
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// read the schema name
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bytestream >> fSchema;
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messageqcpp::ByteStream::quadbyte rowNum;
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bytestream >> rowNum;
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for (unsigned int i = 0; i < rowNum; i++)
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{
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Row* aRow = new Row();
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retval = aRow->read(bytestream);
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fRows.push_back(aRow);
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}
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return retval;
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}
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void DMLTable::readMetaData(messageqcpp::ByteStream& bytestream)
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{
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// read the table name
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bytestream >> fName;
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// read the schema name
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bytestream >> fSchema;
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}
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void DMLTable::readRowData(messageqcpp::ByteStream& bytestream)
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{
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messageqcpp::ByteStream::quadbyte rowNum;
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bytestream >> rowNum;
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for (unsigned int i = 0; i < rowNum; i++)
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{
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Row* aRow = new Row();
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aRow->read(bytestream);
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fRows.push_back(aRow);
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}
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}
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int DMLTable::write(messageqcpp::ByteStream& bytestream)
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{
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int retval = 1;
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//write table name and schma name to the bytestream
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bytestream << fName;
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bytestream << fSchema;
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messageqcpp::ByteStream::quadbyte rowNum;
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rowNum = fRows.size();
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bytestream << rowNum;
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//write the row list
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RowList::iterator rowListPtr;
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rowListPtr = fRows.begin();
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for (; rowListPtr != fRows.end(); ++rowListPtr)
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{
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retval = (*rowListPtr)->write(bytestream);
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}
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return retval;
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}
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} // namespace dmlpackage
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