DateTimeTranslator Class Reference

#include <DateTimeTranslator.h>

Inheritance diagram for DateTimeTranslator:

Static Public Member Functions
static int64_t	getExtractFromTimeConstantValue (const int64_t &timeval, const ExtractField &field, const SQLTypeInfo &ti)
static int64_t	getDateTruncConstantValue (const int64_t &timeval, const DatetruncField &field, const SQLTypeInfo &ti)

Static Protected Member Functions
static std::shared_ptr < Analyzer::Constant >	getNumericConstant (const int64_t scale)

Detailed Description

Definition at line 29 of file DateTimeTranslator.h.

Member Function Documentation

static int64_t DateTimeTranslator::getDateTruncConstantValue ( const int64_t &  timeval, const DatetruncField &  field, const SQLTypeInfo &  ti  )

inlinestatic

Definition at line 54 of file DateTimeTranslator.h.

References DateTruncate(), floor_div(), DateTimeUtils::get_datetrunc_high_precision_scale(), SQLTypeInfo::get_dimension(), DateTimeUtils::get_timestamp_precision_scale(), SQLTypeInfo::is_high_precision_timestamp(), DateTimeUtils::is_subsecond_datetrunc_field(), run_benchmark_import::result, and unsigned_mod().

Referenced by DateTruncExpr::generate(), and getExpressionRange().

                                                                         {
    if (ti.is_high_precision_timestamp()) {
      if (is_subsecond_datetrunc_field(field)) {
        int64_t date_truncate = DateTruncate(field, timeval);
        const auto result = get_datetrunc_high_precision_scale(field, ti.get_dimension());
        if (result != -1) {
          date_truncate -= unsigned_mod(date_truncate, result);
        }
        return date_truncate;
      } else {
        const int64_t scale = get_timestamp_precision_scale(ti.get_dimension());
        return DateTruncate(field, floor_div(timeval, scale)) * scale;
      }
    }
    return DateTruncate(field, timeval);
  }

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static int64_t DateTimeTranslator::getExtractFromTimeConstantValue ( const int64_t &  timeval, const ExtractField &  field, const SQLTypeInfo &  ti  )

inlinestatic

Definition at line 31 of file DateTimeTranslator.h.

References ExtractFromTime(), floor_div(), SQLTypeInfo::get_dimension(), DateTimeUtils::get_extract_high_precision_adjusted_scale(), DateTimeUtils::get_extract_timestamp_precision_scale(), DateTimeUtils::get_timestamp_precision_scale(), SQLTypeInfo::is_high_precision_timestamp(), DateTimeUtils::is_subsecond_extract_field(), kDIVIDE, and run_benchmark_import::result.

Referenced by ExtractExpr::generate().

                                                                               {
    if (ti.is_high_precision_timestamp()) {
      if (is_subsecond_extract_field(field)) {
        const auto result =
            get_extract_high_precision_adjusted_scale(field, ti.get_dimension());
        return result.second ? ExtractFromTime(field,
                                               result.first == kDIVIDE
                                                   ? floor_div(timeval, result.second)
                                                   : timeval * result.second)
                             : ExtractFromTime(field, timeval);
      } else {
        return ExtractFromTime(
            field, floor_div(timeval, get_timestamp_precision_scale(ti.get_dimension())));
      }
    } else if (is_subsecond_extract_field(field)) {
      return ExtractFromTime(field,
                             timeval * get_extract_timestamp_precision_scale(field));
    }
    return ExtractFromTime(field, timeval);
  }

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static std::shared_ptr<Analyzer::Constant> DateTimeTranslator::getNumericConstant ( const int64_t  scale )

inlinestaticprotected

Definition at line 74 of file DateTimeTranslator.h.

References Datum::bigintval, and kBIGINT.

                           {
    Datum d{0};
    d.bigintval = scale;
    return makeExpr<Analyzer::Constant>(SQLTypeInfo(kBIGINT, false), false, d);
  }

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The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/DateTimeTranslator.h