DateTruncate.h File Reference

#include <array>
#include <cstdint>
#include "../Shared/funcannotations.h"
#include "ExtractFromTime.h"

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Enumerations
enum	DatetruncField {   dtYEAR = 0, dtQUARTER, dtMONTH, dtDAY,   dtHOUR, dtMINUTE, dtSECOND, dtMILLISECOND,   dtMICROSECOND, dtNANOSECOND, dtMILLENNIUM, dtCENTURY,   dtDECADE, dtWEEK, dtWEEK_SUNDAY, dtWEEK_SATURDAY,   dtQUARTERDAY, dtINVALID }

Functions
DEVICE int64_t	DateTruncate (DatetruncField field, const int64_t timeval)
RUNTIME_EXPORT DEVICE int64_t	DateTruncateHighPrecisionToDate (const int64_t timeval, const int64_t scale)

Variables
constexpr std::array< char const *, dtINVALID >	datetrunc_fname_lookup

Enumeration Type Documentation

enum DatetruncField

Enumerator
dtYEAR
dtQUARTER
dtMONTH
dtDAY
dtHOUR
dtMINUTE
dtSECOND
dtMILLISECOND
dtMICROSECOND
dtNANOSECOND
dtMILLENNIUM
dtCENTURY
dtDECADE
dtWEEK
dtWEEK_SUNDAY
dtWEEK_SATURDAY
dtQUARTERDAY
dtINVALID

Definition at line 27 of file DateTruncate.h.

                    {
  dtYEAR = 0,
  dtQUARTER,
  dtMONTH,
  dtDAY,
  dtHOUR,
  dtMINUTE,
  dtSECOND,
  dtMILLISECOND,
  dtMICROSECOND,
  dtNANOSECOND,
  dtMILLENNIUM,
  dtCENTURY,
  dtDECADE,
  dtWEEK,
  dtWEEK_SUNDAY,
  dtWEEK_SATURDAY,
  dtQUARTERDAY,
  dtINVALID
};

Function Documentation

DEVICE int64_t DateTruncate	(	DatetruncField	field,
		const int64_t	timeval
	)

Definition at line 242 of file DateTruncate.cpp.

References datetrunc_century(), datetrunc_day(), datetrunc_decade(), datetrunc_hour(), datetrunc_millennium(), datetrunc_minute(), datetrunc_month(), datetrunc_quarter(), datetrunc_quarterday(), datetrunc_week_monday(), datetrunc_week_saturday(), datetrunc_week_sunday(), datetrunc_year(), dtCENTURY, dtDAY, dtDECADE, dtHOUR, dtMICROSECOND, dtMILLENNIUM, dtMILLISECOND, dtMINUTE, dtMONTH, dtNANOSECOND, dtQUARTER, dtQUARTERDAY, dtSECOND, dtWEEK, dtWEEK_SATURDAY, dtWEEK_SUNDAY, and dtYEAR.

Referenced by Analyzer::Constant::do_cast(), anonymous_namespace{ExpressionRange.cpp}::getDateTimePrecisionCastRange(), DateTimeTranslator::getDateTruncConstantValue(), Timestamp::truncateToDay(), Timestamp::truncateToHours(), Timestamp::truncateToMinutes(), Timestamp::truncateToMonth(), and Timestamp::truncateToYear().

                                                                         {
  switch (field) {
    case dtNANOSECOND:
    case dtMICROSECOND:
    case dtMILLISECOND:
    case dtSECOND:
      return timeval;
    case dtMINUTE:
      return datetrunc_minute(timeval);
    case dtHOUR:
      return datetrunc_hour(timeval);
    case dtQUARTERDAY:
      return datetrunc_quarterday(timeval);
    case dtDAY:
      return datetrunc_day(timeval);
    case dtWEEK:
      return datetrunc_week_monday(timeval);
    case dtWEEK_SUNDAY:
      return datetrunc_week_sunday(timeval);
    case dtWEEK_SATURDAY:
      return datetrunc_week_saturday(timeval);
    case dtMONTH:
      return datetrunc_month(timeval);
    case dtQUARTER:
      return datetrunc_quarter(timeval);
    case dtYEAR:
      return datetrunc_year(timeval);
    case dtDECADE:
      return datetrunc_decade(timeval);
    case dtCENTURY:
      return datetrunc_century(timeval);
    case dtMILLENNIUM:
      return datetrunc_millennium(timeval);
    default:
#ifdef __CUDACC__
      return std::numeric_limits<int64_t>::min();
#else
      abort();
#endif
  }
}

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RUNTIME_EXPORT DEVICE int64_t DateTruncateHighPrecisionToDate	(	const int64_t	timeval,
		const int64_t	scale
	)

Definition at line 286 of file DateTruncate.cpp.

References floor_div(), and kSecsPerDay.

Referenced by DateTruncateHighPrecisionToDateNullable(), Analyzer::Constant::do_cast(), and Executor::skipFragment().

                                                                            {
  return floor_div(timeval, scale * kSecsPerDay) * kSecsPerDay;
}

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Variable Documentation

constexpr std::array<char const*, dtINVALID> datetrunc_fname_lookup

Initial value:

{"datetrunc_year",
     "datetrunc_quarter",
     "datetrunc_month",
     "datetrunc_day",
     "datetrunc_hour",
     "datetrunc_minute",
     "datetrunc_second",       
     "datetrunc_millisecond",  
     "datetrunc_microsecond",  
     "datetrunc_nanosecond",   
     "datetrunc_millennium",
     "datetrunc_century",
     "datetrunc_decade",
     "datetrunc_week_monday",
     "datetrunc_week_sunday",
     "datetrunc_week_saturday",
     "datetrunc_quarterday"}}

Definition at line 49 of file DateTruncate.h.

Referenced by CodeGenerator::codegen(), and CodeGenerator::codegenDateTruncHighPrecisionTimestamps().