Datum.cpp File Reference

#include <algorithm>
#include <cassert>
#include <cctype>
#include <charconv>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <limits>
#include <stdexcept>
#include <string>
#include "DateConverters.h"
#include "DateTimeParser.h"
#include "Logger/Logger.h"
#include "QueryEngine/DateTimeUtils.h"
#include "StringTransform.h"
#include "misc.h"
#include "sqltypes.h"

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Namespaces
	anonymous_namespace{Datum.cpp}

Functions
int64_t	anonymous_namespace{Datum.cpp}::convert_decimal_value_to_scale_internal (const int64_t decimal_value, int const dscale)
int64_t	parse_numeric (const std::string_view s, SQLTypeInfo &ti)
template<typename T >
T	anonymous_namespace{Datum.cpp}::minValue (unsigned const fieldsize)
template<typename T >
T	anonymous_namespace{Datum.cpp}::maxValue (unsigned const fieldsize)
std::string	anonymous_namespace{Datum.cpp}::toString (SQLTypeInfo const &ti, unsigned const fieldsize)
template<typename T , typename U = long double>
T	anonymous_namespace{Datum.cpp}::parseFloatAsInteger (std::string_view s, SQLTypeInfo const &ti)
bool	anonymous_namespace{Datum.cpp}::hasCommonSuffix (char const *const ptr, char const *const end)
template<typename T >
T	anonymous_namespace{Datum.cpp}::parseInteger (std::string_view s, SQLTypeInfo const &ti)
SQLTypes	anonymous_namespace{Datum.cpp}::get_type_for_datum (const SQLTypeInfo &ti)
Datum	NullDatum (const SQLTypeInfo &ti)
bool	IsNullDatum (const Datum datum, const SQLTypeInfo &ti)
Datum	StringToDatum (const std::string_view s, SQLTypeInfo &ti)
bool	DatumEqual (const Datum a, const Datum b, const SQLTypeInfo &ti)
std::string	DatumToString (Datum d, const SQLTypeInfo &ti)
int64_t	extract_int_type_from_datum (const Datum datum, const SQLTypeInfo &ti)
double	extract_fp_type_from_datum (const Datum datum, const SQLTypeInfo &ti)
SQLTypes	decimal_to_int_type (const SQLTypeInfo &ti)
SQLTypes	string_dict_to_int_type (const SQLTypeInfo &ti)
int8_t *	append_datum (int8_t *buf, const Datum &d, const SQLTypeInfo &ti)
int64_t	convert_decimal_value_to_scale (const int64_t decimal_value, const SQLTypeInfo &type_info, const SQLTypeInfo &new_type_info)

Function Documentation

int8_t* append_datum	(	int8_t *	buf,
		const Datum &	d,
		const SQLTypeInfo &	ti
	)

Definition at line 578 of file Datum.cpp.

References Datum::bigintval, Datum::boolval, Datum::doubleval, Datum::floatval, SQLTypeInfo::get_type(), Datum::intval, SQLTypeInfo::is_dict_encoded_string(), kBIGINT, kBOOLEAN, kDATE, kDECIMAL, kDOUBLE, kFLOAT, kINT, kNUMERIC, kSMALLINT, kTIME, kTIMESTAMP, kTINYINT, Datum::smallintval, string_dict_to_int_type(), Datum::tinyintval, run_benchmark_import::type, and UNREACHABLE.

Referenced by RelAlgExecutor::executeSimpleInsert(), import_export::NullArray(), import_export::StringToArray(), and import_export::TDatumToArrayDatum().

                                                                         {
  SQLTypes type;
  if (ti.is_dict_encoded_string()) {
    type = string_dict_to_int_type(ti);
  } else {
    type = ti.get_type();
  }
  switch (type) {
    case kBOOLEAN:
      *(int8_t*)buf = d.boolval;
      return buf + sizeof(int8_t);
    case kNUMERIC:
    case kDECIMAL:
    case kBIGINT:
      *(int64_t*)buf = d.bigintval;
      return buf + sizeof(int64_t);
    case kINT:
      *(int32_t*)buf = d.intval;
      return buf + sizeof(int32_t);
    case kSMALLINT:
      *(int16_t*)buf = d.smallintval;
      return buf + sizeof(int16_t);
    case kTINYINT:
      *(int8_t*)buf = d.tinyintval;
      return buf + sizeof(int8_t);
    case kFLOAT:
      *(float*)buf = d.floatval;
      return buf + sizeof(float);
    case kDOUBLE:
      *(double*)buf = d.doubleval;
      return buf + sizeof(double);
    case kTIME:
    case kTIMESTAMP:
    case kDATE:
      *reinterpret_cast<int64_t*>(buf) = d.bigintval;
      return buf + sizeof(int64_t);
    default:
      UNREACHABLE() << "Unexpected type: " << type;
      return nullptr;
  }
}

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int64_t convert_decimal_value_to_scale	(	const int64_t	decimal_value,
		const SQLTypeInfo &	type_info,
		const SQLTypeInfo &	new_type_info
	)

Definition at line 622 of file Datum.cpp.

References anonymous_namespace{Datum.cpp}::convert_decimal_value_to_scale_internal(), and SQLTypeInfo::get_scale().

Referenced by import_export::TypedImportBuffer::addDefaultValues(), Analyzer::Constant::cast_number(), anonymous_namespace{ArrowImporter.h}::ArrowValue< arrow::Decimal128 >::operator DATA_TYPE(), parse_numeric(), anonymous_namespace{TypedDataAccessors.h}::put_scalar(), and ddl_utils::anonymous_namespace{DdlUtils.cpp}::validate_literal().

                                                                         {
  int const dscale = new_type_info.get_scale() - type_info.get_scale();
  return convert_decimal_value_to_scale_internal(decimal_value, dscale);
}

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bool DatumEqual	(	const Datum	a,
		const Datum	b,
		const SQLTypeInfo &	ti
	)

Definition at line 406 of file Datum.cpp.

References Datum::bigintval, Datum::boolval, Datum::doubleval, Datum::floatval, SQLTypeInfo::get_compression(), SQLTypeInfo::get_type(), Datum::intval, kBIGINT, kBOOLEAN, kCHAR, kDATE, kDECIMAL, kDOUBLE, kENCODING_DICT, kFLOAT, kINT, kINTERVAL_DAY_TIME, kINTERVAL_YEAR_MONTH, kLINESTRING, kMULTILINESTRING, kMULTIPOINT, kMULTIPOLYGON, kNUMERIC, kPOINT, kPOLYGON, kSMALLINT, kTEXT, kTIME, kTIMESTAMP, kTINYINT, kVARCHAR, Datum::smallintval, Datum::stringval, and Datum::tinyintval.

Referenced by IsNullDatum(), ChunkMetadata::operator==(), FixedLengthArrayNoneEncoder::resetChunkStats(), and ArrayNoneEncoder::resetChunkStats().

                                                                     {
  switch (ti.get_type()) {
    case kBOOLEAN:
      return a.boolval == b.boolval;
    case kBIGINT:
    case kNUMERIC:
    case kDECIMAL:
      return a.bigintval == b.bigintval;
    case kINT:
      return a.intval == b.intval;
    case kSMALLINT:
      return a.smallintval == b.smallintval;
    case kTINYINT:
      return a.tinyintval == b.tinyintval;
    case kFLOAT:
      return a.floatval == b.floatval;
    case kDOUBLE:
      return a.doubleval == b.doubleval;
    case kTIME:
    case kTIMESTAMP:
    case kDATE:
    case kINTERVAL_DAY_TIME:
    case kINTERVAL_YEAR_MONTH:
      return a.bigintval == b.bigintval;
    case kTEXT:
    case kVARCHAR:
    case kCHAR:
    case kPOINT:
    case kMULTIPOINT:
    case kLINESTRING:
    case kMULTILINESTRING:
    case kPOLYGON:
    case kMULTIPOLYGON:
      if (ti.get_compression() == kENCODING_DICT) {
        return a.intval == b.intval;
      }
      if (a.stringval == nullptr && b.stringval == nullptr) {
        return true;
      }
      if (a.stringval == nullptr || b.stringval == nullptr) {
        return false;
      }
      return *a.stringval == *b.stringval;
    default:
      return false;
  }
  return false;
}

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std::string DatumToString	(	Datum	d,
		const SQLTypeInfo &	ti
	)

Definition at line 458 of file Datum.cpp.

References Datum::bigintval, Datum::boolval, CHECK_EQ, CHECK_LE, CHECK_LT, Datum::doubleval, Datum::floatval, shared::formatDate(), shared::formatDateTime(), shared::formatHMS(), SQLTypeInfo::get_dimension(), SQLTypeInfo::get_scale(), SQLTypeInfo::get_type(), SQLTypeInfo::get_type_name(), Datum::intval, kBIGINT, kBOOLEAN, kCHAR, kDATE, kDECIMAL, kDOUBLE, kFLOAT, kINT, kINTERVAL_DAY_TIME, kINTERVAL_YEAR_MONTH, kNUMERIC, kSMALLINT, kTEXT, kTIME, kTIMESTAMP, kTINYINT, kVARCHAR, Datum::smallintval, Datum::stringval, Datum::tinyintval, to_string(), and SQLTypeInfo::to_string().

Referenced by Analyzer::Constant::cast_to_string(), foreign_storage::datetime_to_string(), foreign_storage::TypedParquetInPlaceEncoder< V, V >::integralTypeToString(), anonymous_namespace{ArrowImporter.h}::ArrowValue< int64_t >::operator DATA_TYPE(), operator<<(), import_export::anonymous_namespace{QueryExporterCSV.cpp}::target_value_to_string(), Analyzer::Constant::toString(), Fragmenter_Namespace::InsertOrderFragmenter::updateChunkStats(), and ScalarExprToSql::visitConstant().

                                                        {
  constexpr size_t buf_size = 64;
  char buf[buf_size];  // Hold "2000-03-01 12:34:56.123456789" and large years.
  switch (ti.get_type()) {
    case kBOOLEAN:
      if (d.boolval) {
        return "t";
      }
      return "f";
    case kNUMERIC:
    case kDECIMAL: {
      double v = (double)d.bigintval / pow(10, ti.get_scale());
      int size = snprintf(buf, buf_size, "%*.*f", ti.get_dimension(), ti.get_scale(), v);
      CHECK_LE(0, size) << v << ' ' << ti.to_string();
      CHECK_LT(size_t(size), buf_size) << v << ' ' << ti.to_string();
      return buf;
    }
    case kINT:
      return std::to_string(d.intval);
    case kSMALLINT:
      return std::to_string(d.smallintval);
    case kTINYINT:
      return std::to_string(d.tinyintval);
    case kBIGINT:
      return std::to_string(d.bigintval);
    case kFLOAT:
      return std::to_string(d.floatval);
    case kDOUBLE:
      return std::to_string(d.doubleval);
    case kTIME: {
      size_t const len = shared::formatHMS(buf, buf_size, d.bigintval);
      CHECK_EQ(8u, len);  // 8 == strlen("HH:MM:SS")
      return buf;
    }
    case kTIMESTAMP: {
      unsigned const dim = ti.get_dimension();  // assumes dim <= 9
      size_t const len = shared::formatDateTime(buf, buf_size, d.bigintval, dim);
      CHECK_LE(19u + bool(dim) + dim, len);  // 19 = strlen("YYYY-MM-DD HH:MM:SS")
      return buf;
    }
    case kDATE: {
      size_t const len = shared::formatDate(buf, buf_size, d.bigintval);
      CHECK_LE(10u, len);  // 10 == strlen("YYYY-MM-DD")
      return buf;
    }
    case kINTERVAL_DAY_TIME:
      return std::to_string(d.bigintval) + " ms (day-time interval)";
    case kINTERVAL_YEAR_MONTH:
      return std::to_string(d.bigintval) + " month(s) (year-month interval)";
    case kTEXT:
    case kVARCHAR:
    case kCHAR:
      if (d.stringval == nullptr) {
        return "NULL";
      }
      return *d.stringval;
    default:
      throw std::runtime_error("Internal error: invalid type " + ti.get_type_name() +
                               " in DatumToString.");
  }
  return "";
}

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SQLTypes decimal_to_int_type

(

const SQLTypeInfo &

ti

)

Definition at line 559 of file Datum.cpp.

References get_int_type_by_size(), and SQLTypeInfo::get_size().

Referenced by import_export::TypedImportBuffer::add_value(), WindowFunctionContext::buildAggregationTreeForPartition(), CodeGenerator::codegen(), CodeGenerator::codegenIntConst(), anonymous_namespace{LogicalIR.cpp}::contains_unsafe_division(), extract_int_type_from_datum(), import_export::Loader::fillShardRow(), anonymous_namespace{ColumnIR.cpp}::get_col_decoder(), import_export::anonymous_namespace{Importer.cpp}::get_type_for_datum(), anonymous_namespace{Datum.cpp}::get_type_for_datum(), CgenState::getOrAddLiteral(), ChunkMetadata::isPlaceholder(), ResultSet::makeTargetValue(), import_export::TypedImportBuffer::pop_value(), import_export::TDatumToDatum(), anonymous_namespace{ExpressionRewrite.cpp}::ConstantFoldingVisitor::visitBinOper(), and anonymous_namespace{ExpressionRewrite.cpp}::ConstantFoldingVisitor::visitUOper().

                                                    {
  return get_int_type_by_size(ti.get_size());
}

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double extract_fp_type_from_datum	(	const Datum	datum,
		const SQLTypeInfo &	ti
	)

Definition at line 547 of file Datum.cpp.

References Datum::doubleval, Datum::floatval, SQLTypeInfo::get_type(), kDOUBLE, kFLOAT, and run_benchmark_import::type.

Referenced by extract_max_stat_fp_type(), and extract_min_stat_fp_type().

                                                                            {
  const auto type = ti.get_type();
  switch (type) {
    case kFLOAT:
      return datum.floatval;
    case kDOUBLE:
      return datum.doubleval;
    default:
      abort();
  }
}

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int64_t extract_int_type_from_datum	(	const Datum	datum,
		const SQLTypeInfo &	ti
	)

Definition at line 521 of file Datum.cpp.

References Datum::bigintval, CHECK_EQ, decimal_to_int_type(), SQLTypeInfo::get_compression(), SQLTypeInfo::get_type(), Datum::intval, SQLTypeInfo::is_decimal(), kBIGINT, kBOOLEAN, kCHAR, kDATE, kENCODING_DICT, kINT, kSMALLINT, kTEXT, kTIME, kTIMESTAMP, kTINYINT, kVARCHAR, Datum::smallintval, Datum::tinyintval, and run_benchmark_import::type.

Referenced by extract_max_stat_int_type(), extract_min_stat_int_type(), StringOps_Namespace::StringOpInfo::getIntLiteral(), ChunkMetadata::isPlaceholder(), and StringOps_Namespace::operator<<().

                                                                              {
  const auto type = ti.is_decimal() ? decimal_to_int_type(ti) : ti.get_type();
  switch (type) {
    case kBOOLEAN:
      return datum.tinyintval;
    case kTINYINT:
      return datum.tinyintval;
    case kSMALLINT:
      return datum.smallintval;
    case kCHAR:
    case kVARCHAR:
    case kTEXT:
      CHECK_EQ(kENCODING_DICT, ti.get_compression());
    case kINT:
      return datum.intval;
    case kBIGINT:
      return datum.bigintval;
    case kTIME:
    case kTIMESTAMP:
    case kDATE:
      return datum.bigintval;
    default:
      abort();
  }
}

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bool IsNullDatum	(	const Datum	datum,
		const SQLTypeInfo &	ti
	)

Definition at line 329 of file Datum.cpp.

References DatumEqual(), and NullDatum().

Referenced by anonymous_namespace{ExpressionRewrite.cpp}::ConstantFoldingVisitor::visitStringOper().

                                                           {
  const Datum null_datum = NullDatum(ti);
  return DatumEqual(datum, null_datum, ti);
}

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Datum NullDatum

(

const SQLTypeInfo &

ti

)

Definition at line 286 of file Datum.cpp.

References Datum::bigintval, Datum::boolval, Datum::doubleval, Datum::floatval, import_export::anonymous_namespace{Importer.cpp}::get_type_for_datum(), inline_fixed_encoding_null_val(), Datum::intval, kBIGINT, kBOOLEAN, kDATE, kDOUBLE, kFLOAT, kINT, kLINESTRING, kMULTILINESTRING, kMULTIPOINT, kMULTIPOLYGON, kPOINT, kPOLYGON, kSMALLINT, kTIME, kTIMESTAMP, kTINYINT, NULL_DOUBLE, NULL_FLOAT, Datum::smallintval, Datum::tinyintval, and run_benchmark_import::type.

Referenced by IsNullDatum(), import_export::NullArray(), and import_export::StringToArray().

                                       {
  Datum d;
  const auto type = get_type_for_datum(ti);
  switch (type) {
    case kBOOLEAN:
      d.boolval = inline_fixed_encoding_null_val(ti);
      break;
    case kBIGINT:
      d.bigintval = inline_fixed_encoding_null_val(ti);
      break;
    case kINT:
      d.intval = inline_fixed_encoding_null_val(ti);
      break;
    case kSMALLINT:
      d.smallintval = inline_fixed_encoding_null_val(ti);
      break;
    case kTINYINT:
      d.tinyintval = inline_fixed_encoding_null_val(ti);
      break;
    case kFLOAT:
      d.floatval = NULL_FLOAT;
      break;
    case kDOUBLE:
      d.doubleval = NULL_DOUBLE;
      break;
    case kTIME:
    case kTIMESTAMP:
    case kDATE:
      d.bigintval = inline_fixed_encoding_null_val(ti);
      break;
    case kPOINT:
    case kMULTIPOINT:
    case kLINESTRING:
    case kMULTILINESTRING:
    case kPOLYGON:
    case kMULTIPOLYGON:
      throw std::runtime_error("Internal error: geometry type in NullDatum.");
    default:
      throw std::runtime_error("Internal error: invalid type in NullDatum.");
  }
  return d;
}

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int64_t parse_numeric	(	const std::string_view	s,
		SQLTypeInfo &	ti
	)

Definition at line 110 of file Datum.cpp.

References convert_decimal_value_to_scale(), anonymous_namespace{Datum.cpp}::convert_decimal_value_to_scale_internal(), SQLTypeInfo::get_dimension(), SQLTypeInfo::get_scale(), kNUMERIC, run_benchmark_import::result, SQLTypeInfo::set_dimension(), SQLTypeInfo::set_notnull(), and SQLTypeInfo::set_scale().

Referenced by StringToDatum().

                                                               {
  // if we are given a dimension, first parse to the maximum precision of the string
  // and then convert to the correct size
  if (ti.get_dimension() != 0) {
    SQLTypeInfo ti_string(kNUMERIC, 0, 0, false);
    return convert_decimal_value_to_scale(parse_numeric(s, ti_string), ti_string, ti);
  }
  size_t dot = s.find_first_of('.', 0);
  std::string before_dot;
  std::string after_dot;
  if (dot != std::string::npos) {
    // make .99 as 0.99, or std::stoll below throws exception 'std::invalid_argument'
    before_dot = (0 == dot) ? "0" : s.substr(0, dot);
    after_dot = s.substr(dot + 1);
  } else {
    before_dot = s;
    after_dot = "0";
  }
  const bool is_negative = before_dot.find_first_of('-', 0) != std::string::npos;
  const int64_t sign = is_negative ? -1 : 1;
  int64_t result;
  result = std::abs(std::stoll(before_dot));
  int64_t fraction = 0;
  const size_t before_dot_digits = before_dot.length() - (is_negative ? 1 : 0);

  constexpr int max_digits = std::numeric_limits<int64_t>::digits10;
  if (!after_dot.empty()) {
    int64_t next_digit = 0;
    // After dot will be used to scale integer part so make sure it wont overflow
    if (after_dot.size() + before_dot_digits > max_digits) {
      if (before_dot_digits >= max_digits) {
        after_dot = "0";
      } else {
        next_digit = std::stoll(after_dot.substr(max_digits - before_dot_digits, 1));
        after_dot = after_dot.substr(0, max_digits - before_dot_digits);
      }
    }
    fraction = std::stoll(after_dot);
    fraction += next_digit >= 5 ? 1 : 0;
  }

  // set the type info based on the literal string
  ti.set_scale(static_cast<int>(after_dot.length()));
  ti.set_dimension(static_cast<int>(before_dot_digits + ti.get_scale()));
  ti.set_notnull(false);
  if (ti.get_scale()) {
    result = convert_decimal_value_to_scale_internal(result, ti.get_scale());
  }
  result += fraction;

  return result * sign;
}

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SQLTypes string_dict_to_int_type

(

const SQLTypeInfo &

ti

)

Definition at line 563 of file Datum.cpp.

References CHECK, SQLTypeInfo::get_size(), SQLTypeInfo::is_dict_encoded_string(), kINT, kNULLT, kSMALLINT, kTINYINT, and UNREACHABLE.

Referenced by append_datum(), import_export::anonymous_namespace{Importer.cpp}::get_type_for_datum(), anonymous_namespace{Datum.cpp}::get_type_for_datum(), and foreign_storage::ParquetFixedLengthArrayEncoder::setNullFixedLengthArraySentinel().

                                                        {
  CHECK(ti.is_dict_encoded_string());
  switch (ti.get_size()) {
    case 1:
      return kTINYINT;
    case 2:
      return kSMALLINT;
    case 4:
      return kINT;
    default:
      UNREACHABLE() << "Unexpected string dictionary encoding size: " << ti.get_size();
  }
  return kNULLT;
}

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Datum StringToDatum	(	const std::string_view	s,
		SQLTypeInfo &	ti
	)

Definition at line 337 of file Datum.cpp.

References Datum::bigintval, Datum::boolval, Datum::doubleval, Datum::floatval, SQLTypeInfo::get_dimension(), SQLTypeInfo::get_type(), SQLTypeInfo::get_type_name(), Datum::intval, kARRAY, kBIGINT, kBOOLEAN, kCOLUMN, kCOLUMN_LIST, kDATE, kDECIMAL, kDOUBLE, kFLOAT, kINT, kLINESTRING, kMULTILINESTRING, kMULTIPOINT, kMULTIPOLYGON, kNUMERIC, kPOINT, kPOLYGON, kSMALLINT, kTIME, kTIMESTAMP, kTINYINT, parse_numeric(), Datum::smallintval, Datum::tinyintval, and to_upper().

Referenced by import_export::TypedImportBuffer::add_value(), import_export::TypedImportBuffer::addDefaultValues(), Parser::FixedPtLiteral::analyze(), Analyzer::Constant::cast_from_string(), anonymous_namespace{ArrowImporter.h}::ArrowValue< std::string >::operator DATA_TYPE(), populate_TColumn(), import_export::StringToArray(), and ddl_utils::anonymous_namespace{DdlUtils.cpp}::validate_literal().

                                                             {
  Datum d;
  try {
    switch (ti.get_type()) {
      case kARRAY:
      case kCOLUMN:
      case kCOLUMN_LIST:
        break;
      case kBOOLEAN:
        if (s == "t" || s == "T" || s == "1" || to_upper(std::string(s)) == "TRUE") {
          d.boolval = true;
        } else if (s == "f" || s == "F" || s == "0" ||
                   to_upper(std::string(s)) == "FALSE") {
          d.boolval = false;
        } else {
          throw std::runtime_error("Invalid string for boolean " + std::string(s));
        }
        break;
      case kNUMERIC:
      case kDECIMAL:
        d.bigintval = parse_numeric(s, ti);
        break;
      case kBIGINT:
        d.bigintval = parseInteger<int64_t>(s, ti);
        break;
      case kINT:
        d.intval = parseInteger<int32_t>(s, ti);
        break;
      case kSMALLINT:
        d.smallintval = parseInteger<int16_t>(s, ti);
        break;
      case kTINYINT:
        d.tinyintval = parseInteger<int8_t>(s, ti);
        break;
      case kFLOAT:
        d.floatval = std::stof(std::string(s));
        break;
      case kDOUBLE:
        d.doubleval = std::stod(std::string(s));
        break;
      case kTIME:
        d.bigintval = dateTimeParse<kTIME>(s, ti.get_dimension());
        break;
      case kTIMESTAMP:
        d.bigintval = dateTimeParse<kTIMESTAMP>(s, ti.get_dimension());
        break;
      case kDATE:
        d.bigintval = dateTimeParse<kDATE>(s, ti.get_dimension());
        break;
      case kPOINT:
      case kMULTIPOINT:
      case kLINESTRING:
      case kMULTILINESTRING:
      case kPOLYGON:
      case kMULTIPOLYGON:
        throw std::runtime_error("Internal error: geometry type in StringToDatum.");
      default:
        throw std::runtime_error("Internal error: invalid type in StringToDatum: " +
                                 ti.get_type_name());
    }
  } catch (const std::invalid_argument&) {
    throw std::runtime_error("Invalid conversion from string to " + ti.get_type_name());
  } catch (const std::out_of_range&) {
    throw std::runtime_error("Got out of range error during conversion from string to " +
                             ti.get_type_name());
  }
  return d;
}

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