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DictionaryValueConverter< TARGET_TYPE > Struct Template Reference

#include <TargetValueConvertersImpl.h>

+ Inheritance diagram for DictionaryValueConverter< TARGET_TYPE >:
+ Collaboration diagram for DictionaryValueConverter< TARGET_TYPE >:

Public Types

using ElementsDataColumnPtr = typename NumericValueConverter< int64_t, TARGET_TYPE >::ColumnDataPtr
 
using ElementsBufferColumnPtr = std::unique_ptr< std::vector< int32_t >>
 
- Public Types inherited from NumericValueConverter< int64_t, TARGET_TYPE >
using ColumnDataPtr = std::unique_ptr< TARGET_TYPE, CheckedMallocDeleter< TARGET_TYPE >>
 
using ElementsBufferColumnPtr = ColumnDataPtr
 
using CasterFunc = std::function< TARGET_TYPE(int64_t, bool, TARGET_TYPE)>
 

Public Member Functions

 DictionaryValueConverter (const Catalog_Namespace::Catalog &cat, int32_t sourceDictId, const ColumnDescriptor *targetDescriptor, size_t num_rows, TARGET_TYPE nullValue, int64_t nullCheckValue, bool doNullCheck, StringDictionaryProxy *literals_dict, StringDictionaryProxy *source_dict_proxy)
 
 ~DictionaryValueConverter () override
 
ElementsBufferColumnPtr allocateColumnarBuffer (size_t num_rows)
 
void convertElementToColumnarFormat (size_t row, typename ElementsBufferColumnPtr::pointer columnBuffer, const ScalarTargetValue *scalarValue)
 
void convertToColumnarFormat (size_t row, const ScalarTargetValue *scalarValue)
 
void convertToColumnarFormat (size_t row, const TargetValue *value) override
 
int32_t convertTransientStringIdToPermanentId (int32_t &transient_string_id)
 
NumericValueConverter< int64_t,
TARGET_TYPE >::ColumnDataPtr 
processBuffer (ElementsBufferColumnPtr buffer)
 
void processArrayBuffer (std::unique_ptr< std::vector< std::pair< size_t, ElementsBufferColumnPtr >>> &array_buffer, std::unique_ptr< std::vector< ArrayDatum >>::pointer arrayData)
 
void finalizeDataBlocksForInsertData () override
 
void addDataBlocksToInsertData (Fragmenter_Namespace::InsertData &insertData) override
 
- Public Member Functions inherited from NumericValueConverter< int64_t, TARGET_TYPE >
 NumericValueConverter (const ColumnDescriptor *cd, size_t num_rows, TARGET_TYPE nullValue, int64_tnullCheckValue, bool doNullCheck)
 
 ~NumericValueConverter () override
 
void setValueCaster (CasterFunc caster)
 
void populateFixedArrayNullSentinel (size_t num_rows)
 
void allocateColumnarData (size_t num_rows) override
 
ElementsBufferColumnPtr allocateColumnarBuffer (size_t num_rows)
 
void convertElementToColumnarFormat (size_t row, typename ElementsBufferColumnPtr::pointer columnData, const ScalarTargetValue *scalarValue)
 
void convertToColumnarFormat (size_t row, const ScalarTargetValue *scalarValue)
 
void convertToColumnarFormat (size_t row, const TargetValue *value) override
 
void processArrayBuffer (std::unique_ptr< std::vector< std::pair< size_t, ElementsBufferColumnPtr >>> &array_buffer, std::unique_ptr< std::vector< ArrayDatum >>::pointer arrayData)
 
void addDataBlocksToInsertData (Fragmenter_Namespace::InsertData &insertData) override
 
- Public Member Functions inherited from TargetValueConverter
 TargetValueConverter (const ColumnDescriptor *cd)
 
virtual ~TargetValueConverter ()
 

Public Attributes

ElementsBufferColumnPtr column_buffer_
 
const DictDescriptortarget_dict_desc_
 
const DictDescriptorsource_dict_desc_
 
StringDictionaryProxysource_dict_proxy_
 
const int32_t buffer_null_sentinal_ = std::numeric_limits<int32_t>::min()
 
const StringDictionaryProxyliterals_dict_
 
std::unordered_map< int32_t,
int32_t > 
literals_lookup_
 
bool use_literals_
 
- Public Attributes inherited from NumericValueConverter< int64_t, TARGET_TYPE >
ColumnDataPtr column_data_
 
TARGET_TYPE null_value_
 
int64_t null_check_value_
 
bool do_null_check_
 
TARGET_TYPE fixed_array_null_value_
 
CasterFunc checked_caster_
 
boost_variant_accessor< int64_t > SOURCE_TYPE_ACCESSOR
 
- Public Attributes inherited from TargetValueConverter
const ColumnDescriptorcolumn_descriptor_
 
boost_variant_accessor
< ScalarTargetValue
SCALAR_TARGET_VALUE_ACCESSOR
 
boost_variant_accessor
< ArrayTargetValue
ARRAY_TARGET_VALUE_ACCESSOR
 
boost_variant_accessor
< GeoTargetValue
GEO_TARGET_VALUE_ACCESSOR
 
boost_variant_accessor
< NullableString
NULLABLE_STRING_ACCESSOR
 
boost_variant_accessor
< std::string > 
STRING_ACCESSOR
 

Detailed Description

template<typename TARGET_TYPE>
struct DictionaryValueConverter< TARGET_TYPE >

Definition at line 162 of file TargetValueConvertersImpl.h.

Member Typedef Documentation

template<typename TARGET_TYPE >
using DictionaryValueConverter< TARGET_TYPE >::ElementsBufferColumnPtr = std::unique_ptr<std::vector<int32_t>>

Definition at line 166 of file TargetValueConvertersImpl.h.

template<typename TARGET_TYPE >
using DictionaryValueConverter< TARGET_TYPE >::ElementsDataColumnPtr = typename NumericValueConverter<int64_t, TARGET_TYPE>::ColumnDataPtr

Definition at line 164 of file TargetValueConvertersImpl.h.

Constructor & Destructor Documentation

template<typename TARGET_TYPE >
DictionaryValueConverter< TARGET_TYPE >::DictionaryValueConverter ( const Catalog_Namespace::Catalog cat,
int32_t  sourceDictId,
const ColumnDescriptor targetDescriptor,
size_t  num_rows,
TARGET_TYPE  nullValue,
int64_t  nullCheckValue,
bool  doNullCheck,
StringDictionaryProxy literals_dict,
StringDictionaryProxy source_dict_proxy 
)
inline

Definition at line 182 of file TargetValueConvertersImpl.h.

References DictionaryValueConverter< TARGET_TYPE >::allocateColumnarBuffer(), DictionaryValueConverter< TARGET_TYPE >::buffer_null_sentinal_, CHECK, DictionaryValueConverter< TARGET_TYPE >::column_buffer_, ColumnDescriptor::columnType, SQLTypeInfo::get_comp_param(), Catalog_Namespace::Catalog::getMetadataForDict(), StringDictionaryProxy::getTransientVector(), DictionaryValueConverter< TARGET_TYPE >::literals_dict_, DictionaryValueConverter< TARGET_TYPE >::literals_lookup_, DictionaryValueConverter< TARGET_TYPE >::source_dict_desc_, DictionaryValueConverter< TARGET_TYPE >::source_dict_proxy_, DictDescriptor::stringDict, DictionaryValueConverter< TARGET_TYPE >::target_dict_desc_, StringDictionaryProxy::transientIndexToId(), and DictionaryValueConverter< TARGET_TYPE >::use_literals_.

192  num_rows,
193  nullValue,
194  nullCheckValue,
195  doNullCheck) {
196  literals_dict_ = literals_dict;
198  cat.getMetadataForDict(targetDescriptor->columnType.get_comp_param(), true);
199 
200  source_dict_desc_ = nullptr;
201  source_dict_proxy_ = source_dict_proxy;
202 
203  use_literals_ = 0 == sourceDictId;
204  if (!use_literals_) {
205  source_dict_desc_ = cat.getMetadataForDict(std::abs(sourceDictId), true);
207  } else {
208  if (literals_dict) {
209  auto const& transient_vecmap = literals_dict->getTransientVector();
210  for (unsigned index = 0; index < transient_vecmap.size(); ++index) {
211  auto const old_id = StringDictionaryProxy::transientIndexToId(index);
212  std::string const& str = *transient_vecmap[index];
213  auto const new_id = target_dict_desc_->stringDict->getOrAdd(str);
214  literals_lookup_[old_id] = new_id;
215  }
216  }
217 
219  }
220 
222 
223  if (num_rows) {
225  }
226  }
const std::vector< std::string const * > & getTransientVector() const
const DictDescriptor * source_dict_desc_
ElementsBufferColumnPtr column_buffer_
ElementsBufferColumnPtr allocateColumnarBuffer(size_t num_rows)
const DictDescriptor * target_dict_desc_
const StringDictionaryProxy * literals_dict_
std::shared_ptr< StringDictionary > stringDict
static int32_t transientIndexToId(unsigned const index)
const DictDescriptor * getMetadataForDict(int dict_ref, bool loadDict=true) const
Definition: Catalog.cpp:1671
std::unordered_map< int32_t, int32_t > literals_lookup_
#define CHECK(condition)
Definition: Logger.h:222
StringDictionaryProxy * source_dict_proxy_

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template<typename TARGET_TYPE >
DictionaryValueConverter< TARGET_TYPE >::~DictionaryValueConverter ( )
inlineoverride

Definition at line 228 of file TargetValueConvertersImpl.h.

228 {}

Member Function Documentation

template<typename TARGET_TYPE >
void DictionaryValueConverter< TARGET_TYPE >::addDataBlocksToInsertData ( Fragmenter_Namespace::InsertData insertData)
inlineoverridevirtual

Implements TargetValueConverter.

Definition at line 404 of file TargetValueConvertersImpl.h.

References NumericValueConverter< int64_t, TARGET_TYPE >::column_data_, TargetValueConverter::column_descriptor_, ColumnDescriptor::columnId, Fragmenter_Namespace::InsertData::columnIds, Fragmenter_Namespace::InsertData::data, DictionaryValueConverter< TARGET_TYPE >::finalizeDataBlocksForInsertData(), and DataBlockPtr::numbersPtr.

404  {
406  DataBlockPtr dataBlock;
407  dataBlock.numbersPtr = reinterpret_cast<int8_t*>(this->column_data_.get());
408  insertData.data.push_back(dataBlock);
409  insertData.columnIds.push_back(this->column_descriptor_->columnId);
410  }
const ColumnDescriptor * column_descriptor_
void finalizeDataBlocksForInsertData() override
std::vector< DataBlockPtr > data
the number of rows being inserted
Definition: Fragmenter.h:73
int8_t * numbersPtr
Definition: sqltypes.h:226
std::vector< int > columnIds
identifies the table into which the data is being inserted
Definition: Fragmenter.h:71

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template<typename TARGET_TYPE >
ElementsBufferColumnPtr DictionaryValueConverter< TARGET_TYPE >::allocateColumnarBuffer ( size_t  num_rows)
inline

Definition at line 230 of file TargetValueConvertersImpl.h.

References CHECK.

Referenced by DictionaryValueConverter< TARGET_TYPE >::DictionaryValueConverter().

230  {
231  CHECK(num_rows > 0);
232  return std::make_unique<std::vector<int32_t>>(num_rows);
233  }
#define CHECK(condition)
Definition: Logger.h:222

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template<typename TARGET_TYPE >
void DictionaryValueConverter< TARGET_TYPE >::convertElementToColumnarFormat ( size_t  row,
typename ElementsBufferColumnPtr::pointer  columnBuffer,
const ScalarTargetValue scalarValue 
)
inline

Definition at line 235 of file TargetValueConvertersImpl.h.

References DictionaryValueConverter< TARGET_TYPE >::buffer_null_sentinal_, NumericValueConverter< int64_t, TARGET_TYPE >::do_null_check_, NumericValueConverter< int64_t, TARGET_TYPE >::null_check_value_, and NumericValueConverter< int64_t, TARGET_TYPE >::SOURCE_TYPE_ACCESSOR.

Referenced by DictionaryValueConverter< TARGET_TYPE >::convertToColumnarFormat().

238  {
239  auto db_p = checked_get<int64_t>(row, scalarValue, this->SOURCE_TYPE_ACCESSOR);
240  auto val = *db_p;
241 
242  if (this->do_null_check_ && this->null_check_value_ == val) {
243  (*columnBuffer)[row] = this->buffer_null_sentinal_;
244  } else {
245  (*columnBuffer)[row] = (int32_t)val;
246  }
247  }
boost_variant_accessor< int64_t > SOURCE_TYPE_ACCESSOR

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template<typename TARGET_TYPE >
void DictionaryValueConverter< TARGET_TYPE >::convertToColumnarFormat ( size_t  row,
const ScalarTargetValue scalarValue 
)
inline

Definition at line 249 of file TargetValueConvertersImpl.h.

References DictionaryValueConverter< TARGET_TYPE >::column_buffer_, and DictionaryValueConverter< TARGET_TYPE >::convertElementToColumnarFormat().

Referenced by DictionaryValueConverter< TARGET_TYPE >::convertToColumnarFormat().

249  {
250  convertElementToColumnarFormat(row, this->column_buffer_.get(), scalarValue);
251  }
ElementsBufferColumnPtr column_buffer_
void convertElementToColumnarFormat(size_t row, typename ElementsBufferColumnPtr::pointer columnBuffer, const ScalarTargetValue *scalarValue)

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template<typename TARGET_TYPE >
void DictionaryValueConverter< TARGET_TYPE >::convertToColumnarFormat ( size_t  row,
const TargetValue value 
)
inlineoverridevirtual

Implements TargetValueConverter.

Definition at line 253 of file TargetValueConvertersImpl.h.

References DictionaryValueConverter< TARGET_TYPE >::convertToColumnarFormat(), and TargetValueConverter::SCALAR_TARGET_VALUE_ACCESSOR.

253  {
254  auto scalarValue =
255  checked_get<ScalarTargetValue>(row, value, this->SCALAR_TARGET_VALUE_ACCESSOR);
256 
257  convertToColumnarFormat(row, scalarValue);
258  }
void convertToColumnarFormat(size_t row, const ScalarTargetValue *scalarValue)
boost_variant_accessor< ScalarTargetValue > SCALAR_TARGET_VALUE_ACCESSOR

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template<typename TARGET_TYPE >
int32_t DictionaryValueConverter< TARGET_TYPE >::convertTransientStringIdToPermanentId ( int32_t &  transient_string_id)
inline

Definition at line 260 of file TargetValueConvertersImpl.h.

References StringDictionaryProxy::getOrAdd(), StringDictionaryProxy::getString(), and DictionaryValueConverter< TARGET_TYPE >::source_dict_proxy_.

Referenced by DictionaryValueConverter< TARGET_TYPE >::processBuffer().

260  {
261  if (source_dict_proxy_) {
262  auto str = source_dict_proxy_->getString(transient_string_id);
263  return source_dict_proxy_->getOrAdd(str);
264  } else {
265  throw std::runtime_error("Unexpected negative source ID");
266  }
267  }
std::string getString(int32_t string_id) const
int32_t getOrAdd(const std::string &str) noexcept
StringDictionaryProxy * source_dict_proxy_

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template<typename TARGET_TYPE >
void DictionaryValueConverter< TARGET_TYPE >::finalizeDataBlocksForInsertData ( )
inlineoverridevirtual

Reimplemented from TargetValueConverter.

Definition at line 397 of file TargetValueConvertersImpl.h.

References DictionaryValueConverter< TARGET_TYPE >::column_buffer_, NumericValueConverter< int64_t, TARGET_TYPE >::column_data_, and DictionaryValueConverter< TARGET_TYPE >::processBuffer().

Referenced by DictionaryValueConverter< TARGET_TYPE >::addDataBlocksToInsertData().

397  {
398  if (column_buffer_) {
399  this->column_data_ = processBuffer(std::move(column_buffer_));
400  column_buffer_ = nullptr;
401  }
402  }
ElementsBufferColumnPtr column_buffer_
NumericValueConverter< int64_t, TARGET_TYPE >::ColumnDataPtr processBuffer(ElementsBufferColumnPtr buffer)

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template<typename TARGET_TYPE >
void DictionaryValueConverter< TARGET_TYPE >::processArrayBuffer ( std::unique_ptr< std::vector< std::pair< size_t, ElementsBufferColumnPtr >>> &  array_buffer,
std::unique_ptr< std::vector< ArrayDatum >>::pointer  arrayData 
)
inline

Definition at line 350 of file TargetValueConvertersImpl.h.

References is_null(), StringDictionary::populate_string_array_ids(), DictionaryValueConverter< TARGET_TYPE >::processBuffer(), DictionaryValueConverter< TARGET_TYPE >::source_dict_desc_, DictDescriptor::stringDict, DictionaryValueConverter< TARGET_TYPE >::target_dict_desc_, and DictionaryValueConverter< TARGET_TYPE >::use_literals_.

353  {
354  if (use_literals_) {
355  for (size_t row = 0; row < array_buffer->size(); row++) {
356  auto& element = (array_buffer->at(row));
357  bool is_null = false;
358  if (element.second) {
360  processBuffer(std::move(element.second));
361  int8_t* arrayDataPtr = reinterpret_cast<int8_t*>(data.release());
362  (*arrayData)[row] =
363  ArrayDatum(element.first * sizeof(TARGET_TYPE), arrayDataPtr, is_null);
364  }
365  }
366  } else {
367  std::vector<std::vector<int32_t>> srcArrayIds(array_buffer->size());
368  std::vector<std::vector<int32_t>> destArrayIds(0);
369 
370  for (size_t row = 0; row < array_buffer->size(); row++) {
371  auto& element = (array_buffer->at(row));
372  if (element.second) {
373  srcArrayIds[row] = *(element.second.get());
374  }
375  }
376 
379  srcArrayIds,
381 
382  for (size_t row = 0; row < array_buffer->size(); row++) {
383  auto& element = (array_buffer->at(row));
384  bool is_null = false;
385  if (element.second) {
386  *(element.second.get()) = destArrayIds[row];
387  int8_t* arrayDataPtr = reinterpret_cast<int8_t*>(&(element.second->at(0)));
388  (*arrayData)[row] = ArrayDatum(element.first * sizeof(TARGET_TYPE),
389  arrayDataPtr,
390  is_null,
391  DoNothingDeleter());
392  }
393  }
394  }
395  }
const DictDescriptor * source_dict_desc_
const DictDescriptor * target_dict_desc_
std::shared_ptr< StringDictionary > stringDict
std::conditional_t< is_cuda_compiler(), DeviceArrayDatum, HostArrayDatum > ArrayDatum
Definition: sqltypes.h:208
CONSTEXPR DEVICE bool is_null(const T &value)
static void populate_string_array_ids(std::vector< std::vector< int32_t >> &dest_array_ids, StringDictionary *dest_dict, const std::vector< std::vector< int32_t >> &source_array_ids, const StringDictionary *source_dict)
NumericValueConverter< int64_t, TARGET_TYPE >::ColumnDataPtr processBuffer(ElementsBufferColumnPtr buffer)

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template<typename TARGET_TYPE >
NumericValueConverter<int64_t, TARGET_TYPE>::ColumnDataPtr DictionaryValueConverter< TARGET_TYPE >::processBuffer ( ElementsBufferColumnPtr  buffer)
inline

Definition at line 269 of file TargetValueConvertersImpl.h.

References DictionaryValueConverter< TARGET_TYPE >::buffer_null_sentinal_, checked_malloc(), DictionaryValueConverter< TARGET_TYPE >::convertTransientStringIdToPermanentId(), DictDescriptor::dictRef, StringDictionaryProxy::getTransientVector(), DictionaryValueConverter< TARGET_TYPE >::literals_lookup_, NumericValueConverter< int64_t, TARGET_TYPE >::null_value_, StringDictionary::populate_string_ids(), DictionaryValueConverter< TARGET_TYPE >::source_dict_desc_, DictionaryValueConverter< TARGET_TYPE >::source_dict_proxy_, DictDescriptor::stringDict, DictionaryValueConverter< TARGET_TYPE >::target_dict_desc_, to_string(), and DictionaryValueConverter< TARGET_TYPE >::use_literals_.

Referenced by DictionaryValueConverter< TARGET_TYPE >::finalizeDataBlocksForInsertData(), and DictionaryValueConverter< TARGET_TYPE >::processArrayBuffer().

270  {
273  reinterpret_cast<TARGET_TYPE*>(
274  checked_malloc(buffer->size() * sizeof(TARGET_TYPE))));
275 
276  std::vector<int32_t>* bufferPtr =
277  reinterpret_cast<std::vector<int32_t>*>(buffer.get());
278  TARGET_TYPE* columnDataPtr = reinterpret_cast<TARGET_TYPE*>(data.get());
279  if (use_literals_) {
280  for (size_t i = 0; i < bufferPtr->size(); i++) {
281  auto id = literals_lookup_[(*bufferPtr)[i]];
282  if (id == buffer_null_sentinal_) {
283  columnDataPtr[i] = this->null_value_;
284  } else {
285  columnDataPtr[i] = static_cast<TARGET_TYPE>(id);
286  }
287  }
288  } else {
290  // special case, where source and target dict are the same
291  // mostly in update
292  for (size_t i = 0; i < bufferPtr->size(); i++) {
293  auto src_id = (*bufferPtr)[i];
294  if (src_id == buffer_null_sentinal_) {
295  columnDataPtr[i] = this->null_value_;
296  } else if (src_id < 0) {
297  columnDataPtr[i] = convertTransientStringIdToPermanentId(src_id);
298  } else {
299  columnDataPtr[i] = static_cast<TARGET_TYPE>(src_id);
300  }
301  }
302 
303  } else {
304  std::vector<int32_t> dest_ids;
305  dest_ids.resize(bufferPtr->size());
306 
307  if (source_dict_proxy_) {
310  *bufferPtr,
313  } else {
316  *bufferPtr,
318  }
319 
320  // fixup NULL sentinel
321  for (size_t i = 0; i < dest_ids.size(); i++) {
322  auto id = dest_ids[i];
323  if (id == buffer_null_sentinal_) {
324  columnDataPtr[i] = this->null_value_;
325  } else {
326  if (std::is_signed<TARGET_TYPE>::value) {
327  if (id < 0) {
328  throw std::runtime_error(
329  "Maximum number of unique strings (" +
330  std::to_string(std::numeric_limits<TARGET_TYPE>::max()) +
331  ") reached in target dictionary");
332  }
333  } else {
334  if (id >= std::numeric_limits<TARGET_TYPE>::max()) {
335  throw std::runtime_error(
336  "Maximum number of unique strings (" +
337  std::to_string(std::numeric_limits<TARGET_TYPE>::max()) +
338  ") reached in target column's dict encoding");
339  }
340  }
341  columnDataPtr[i] = static_cast<TARGET_TYPE>(id);
342  }
343  }
344  }
345  }
346 
347  return data;
348  }
std::unique_ptr< TARGET_TYPE, CheckedMallocDeleter< TARGET_TYPE >> ColumnDataPtr
const std::vector< std::string const * > & getTransientVector() const
const DictDescriptor * source_dict_desc_
static void populate_string_ids(std::vector< int32_t > &dest_ids, StringDictionary *dest_dict, const std::vector< int32_t > &source_ids, const StringDictionary *source_dict, const std::vector< std::string const * > &transient_string_vec={})
Populates provided dest_ids vector with string ids corresponding to given source strings.
std::string to_string(char const *&&v)
const DictDescriptor * target_dict_desc_
std::shared_ptr< StringDictionary > stringDict
void * checked_malloc(const size_t size)
Definition: checked_alloc.h:45
int32_t convertTransientStringIdToPermanentId(int32_t &transient_string_id)
std::unordered_map< int32_t, int32_t > literals_lookup_
StringDictionaryProxy * source_dict_proxy_

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Member Data Documentation

template<typename TARGET_TYPE >
const int32_t DictionaryValueConverter< TARGET_TYPE >::buffer_null_sentinal_ = std::numeric_limits<int32_t>::min()
template<typename TARGET_TYPE >
const StringDictionaryProxy* DictionaryValueConverter< TARGET_TYPE >::literals_dict_
template<typename TARGET_TYPE >
std::unordered_map<int32_t, int32_t> DictionaryValueConverter< TARGET_TYPE >::literals_lookup_

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