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257 lines
7.9 KiB
C++
257 lines
7.9 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: func_extract.cpp 3923 2013-06-19 21:43:06Z bwilkinson $
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*
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*
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****************************************************************************/
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#include <cstdlib>
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#include <string>
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using namespace std;
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#include "functor_int.h"
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#include "funchelpers.h"
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#include "functioncolumn.h"
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#include "intervalcolumn.h"
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#include "rowgroup.h"
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using namespace execplan;
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#include "dataconvert.h"
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namespace
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{
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using namespace funcexp;
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long long dateGet(uint64_t time, IntervalColumn::interval_type unit, bool dateType)
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{
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uint64_t year = 0, month = 0, day = 0, hour = 0, min = 0, sec = 0, msec = 0;
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if (dateType)
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{
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year = (uint32_t)((time >> 16) & 0xffff);
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month = (uint32_t)((time >> 12) & 0xf);
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day = (uint32_t)((time >> 6) & 0x3f);
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}
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else
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{
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year = (uint32_t)((time >> 48) & 0xffff);
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month = (uint32_t)((time >> 44) & 0xf);
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day = (uint32_t)((time >> 38) & 0x3f);
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hour = (uint32_t)((time >> 32) & 0x3f);
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min = (uint32_t)((time >> 26) & 0x3f);
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sec = (uint32_t)((time >> 20) & 0x3f);
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msec = (uint32_t)((time & 0xfffff));
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}
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switch (unit)
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{
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case IntervalColumn::INTERVAL_YEAR: return year;
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case IntervalColumn::INTERVAL_MONTH: return month;
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case IntervalColumn::INTERVAL_DAY: return day;
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case IntervalColumn::INTERVAL_HOUR: return hour;
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case IntervalColumn::INTERVAL_MINUTE: return min;
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case IntervalColumn::INTERVAL_SECOND: return sec;
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case IntervalColumn::INTERVAL_MICROSECOND: return msec;
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case IntervalColumn::INTERVAL_QUARTER: return (month - 1) / 3 + 1;
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case IntervalColumn::INTERVAL_WEEK: return helpers::calc_mysql_week(year, month, day, 0);
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case IntervalColumn::INTERVAL_YEAR_MONTH: return (year * 100) + month;
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case IntervalColumn::INTERVAL_DAY_HOUR: return (day * 100) + hour;
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case IntervalColumn::INTERVAL_DAY_MINUTE: return (day * 10000) + (hour * 100) + min;
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case IntervalColumn::INTERVAL_DAY_SECOND: return (day * 1000000) + (hour * 10000) + (min * 100) + sec;
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case IntervalColumn::INTERVAL_HOUR_MINUTE: return (hour * 100) + min;
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case IntervalColumn::INTERVAL_HOUR_SECOND: return (hour * 10000) + (min * 100) + sec;
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case IntervalColumn::INTERVAL_MINUTE_SECOND: return (min * 100) + sec;
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case IntervalColumn::INTERVAL_DAY_MICROSECOND:
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return (((day * 1000000) + (hour * 10000) + (min * 100) + sec) * 1000000) + msec;
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case IntervalColumn::INTERVAL_HOUR_MICROSECOND:
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return (((hour * 10000) + (min * 100) + sec) * 1000000) + msec;
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case IntervalColumn::INTERVAL_MINUTE_MICROSECOND: return (((min * 100) + sec) * 1000000) + msec;
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case IntervalColumn::INTERVAL_SECOND_MICROSECOND: return (sec * 1000000) + msec;
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default: throw runtime_error(std::string("unit type is not supported: ") + std::to_string(unit));
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};
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}
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long long timeGet(uint64_t time, IntervalColumn::interval_type unit)
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{
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int64_t hour = 0, min = 0, sec = 0, msec = 0, day = 0;
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min = (int64_t)((time >> 32) & 0xff);
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sec = (int64_t)((time >> 24) & 0xff);
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msec = (int64_t)((time & 0xfffff));
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// If negative, mask so it doesn't turn positive
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int64_t mask = 0;
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if ((time >> 40) & 0x800)
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mask = 0xfffffffffffff000;
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hour = mask | ((time >> 40) & 0xfff);
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if ((hour >= 0) && (time >> 63))
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hour *= -1;
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// Always positive!
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day = abs(hour / 24);
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switch (unit)
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{
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case IntervalColumn::INTERVAL_YEAR:
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case IntervalColumn::INTERVAL_MONTH: return 0;
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case IntervalColumn::INTERVAL_DAY: return day;
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case IntervalColumn::INTERVAL_HOUR: return hour;
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case IntervalColumn::INTERVAL_MINUTE: return min;
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case IntervalColumn::INTERVAL_SECOND: return sec;
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case IntervalColumn::INTERVAL_MICROSECOND: return msec;
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case IntervalColumn::INTERVAL_QUARTER:
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case IntervalColumn::INTERVAL_WEEK:
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case IntervalColumn::INTERVAL_YEAR_MONTH: return 0;
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case IntervalColumn::INTERVAL_DAY_HOUR: return (day * 100) + hour;
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case IntervalColumn::INTERVAL_DAY_MINUTE: return (day * 10000) + (hour * 100) + min;
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case IntervalColumn::INTERVAL_DAY_SECOND: return (day * 1000000) + (hour * 10000) + (min * 100) + sec;
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case IntervalColumn::INTERVAL_HOUR_MINUTE: return (hour * 100) + min;
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case IntervalColumn::INTERVAL_HOUR_SECOND: return (hour * 10000) + (min * 100) + sec;
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case IntervalColumn::INTERVAL_MINUTE_SECOND: return (min * 100) + sec;
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case IntervalColumn::INTERVAL_DAY_MICROSECOND:
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return (((day * 1000000) + (hour * 10000) + (min * 100) + sec) * 1000000) + msec;
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case IntervalColumn::INTERVAL_HOUR_MICROSECOND:
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return (((hour * 10000) + (min * 100) + sec) * 1000000) + msec;
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case IntervalColumn::INTERVAL_MINUTE_MICROSECOND: return (((min * 100) + sec) * 1000000) + msec;
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case IntervalColumn::INTERVAL_SECOND_MICROSECOND: return (sec * 1000000) + msec;
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default: throw runtime_error(std::string("unit type is not supported: ") + std::to_string(unit));
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};
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};
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} // namespace
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namespace funcexp
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{
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CalpontSystemCatalog::ColType Func_extract::operationType(FunctionParm& /*fp*/,
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CalpontSystemCatalog::ColType& resultType)
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{
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return resultType;
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}
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int64_t Func_extract::getIntVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
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CalpontSystemCatalog::ColType& ct)
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{
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IntervalColumn::interval_type unit =
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static_cast<IntervalColumn::interval_type>(parm[1]->data()->getIntVal(row, isNull));
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uint64_t time;
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bool isTime = false;
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//@bug4678 handle conversion from non date/datetime datatype
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switch (parm[0]->data()->resultType().colDataType)
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{
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case CalpontSystemCatalog::DATE:
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case CalpontSystemCatalog::DATETIME: time = parm[0]->data()->getDatetimeIntVal(row, isNull); break;
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case CalpontSystemCatalog::TIMESTAMP:
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{
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dataconvert::TimeStamp timestamp(parm[0]->data()->getTimestampIntVal(row, isNull));
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int64_t seconds = timestamp.second;
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dataconvert::MySQLTime m_time;
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dataconvert::gmtSecToMySQLTime(seconds, m_time, ct.getTimeZone());
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dataconvert::DateTime dt;
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dt.year = m_time.year;
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dt.month = m_time.month;
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dt.day = m_time.day;
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dt.hour = m_time.hour;
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dt.minute = m_time.minute;
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dt.second = m_time.second;
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dt.msecond = timestamp.msecond;
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time = *(reinterpret_cast<uint64_t*>(&dt));
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break;
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}
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case CalpontSystemCatalog::TIME:
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time = parm[0]->data()->getTimeIntVal(row, isNull);
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isTime = true;
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break;
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case CalpontSystemCatalog::VARCHAR:
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case CalpontSystemCatalog::CHAR:
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case CalpontSystemCatalog::TEXT:
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{
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const auto& val = parm[0]->data()->getStrVal(row, isNull);
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time = dataconvert::DataConvert::stringToDatetime(val.safeString(""));
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break;
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}
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case CalpontSystemCatalog::INT:
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case CalpontSystemCatalog::TINYINT:
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case CalpontSystemCatalog::MEDINT:
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case CalpontSystemCatalog::BIGINT:
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case CalpontSystemCatalog::SMALLINT:
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{
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int64_t val = parm[0]->data()->getIntVal(row, isNull);
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time = dataconvert::DataConvert::intToDatetime(val);
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break;
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}
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default: time = parm[0]->data()->getIntVal(row, isNull);
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}
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long long value;
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if (isTime)
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value = timeGet(time, unit);
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else
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value = dateGet(time, unit, false);
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return value;
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}
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} // namespace funcexp
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