OmniSciDB  04ee39c94c
ResultSetIteration.cpp File Reference

Iteration part of the row set interface. More...

#include "../Shared/geo_types.h"
#include "../Shared/likely.h"
#include "Execute.h"
#include "ParserNode.h"
#include "QueryEngine/TargetValue.h"
#include "ResultSet.h"
#include "ResultSetGeoSerialization.h"
#include "RuntimeFunctions.h"
#include "Shared/SqlTypesLayout.h"
#include "Shared/sqltypes.h"
#include "TypePunning.h"
#include <memory>
#include <utility>
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Classes

struct  anonymous_namespace{ResultSetIteration.cpp}::GeoLazyFetchHandler
 
struct  anonymous_namespace{ResultSetIteration.cpp}::GeoQueryOutputFetchHandler
 
struct  anonymous_namespace{ResultSetIteration.cpp}::GeoTargetValueBuilder< GEO_SOURCE_TYPE, GeoTargetFetcher >
 

Namespaces

 anonymous_namespace{ResultSetIteration.cpp}
 

Functions

TargetValue anonymous_namespace{ResultSetIteration.cpp}::make_avg_target_value (const int8_t *ptr1, const int8_t compact_sz1, const int8_t *ptr2, const int8_t compact_sz2, const TargetInfo &target_info)
 
const int8_t * anonymous_namespace{ResultSetIteration.cpp}::advance_col_buff_to_slot (const int8_t *buff, const QueryMemoryDescriptor &query_mem_desc, const std::vector< TargetInfo > &targets, const size_t slot_idx, const bool separate_varlen_storage)
 
size_t get_byteoff_of_slot (const size_t slot_idx, const QueryMemoryDescriptor &query_mem_desc)
 
const int8_t * anonymous_namespace{ResultSetIteration.cpp}::columnar_elem_ptr (const size_t entry_idx, const int8_t *col1_ptr, const int8_t compact_sz1)
 
int64_t anonymous_namespace{ResultSetIteration.cpp}::int_resize_cast (const int64_t ival, const size_t sz)
 
int64_t lazy_decode (const ColumnLazyFetchInfo &col_lazy_fetch, const int8_t *byte_stream, const int64_t pos)
 
template<class T >
ScalarTargetValue anonymous_namespace{ResultSetIteration.cpp}::make_scalar_tv (const T val)
 
template<>
ScalarTargetValue anonymous_namespace{ResultSetIteration.cpp}::make_scalar_tv (const float val)
 
template<>
ScalarTargetValue anonymous_namespace{ResultSetIteration.cpp}::make_scalar_tv (const double val)
 
template<class T >
TargetValue anonymous_namespace{ResultSetIteration.cpp}::build_array_target_value (const int8_t *buff, const size_t buff_sz, std::shared_ptr< RowSetMemoryOwner > row_set_mem_owner)
 
TargetValue anonymous_namespace{ResultSetIteration.cpp}::build_string_array_target_value (const int32_t *buff, const size_t buff_sz, const int dict_id, const bool translate_strings, std::shared_ptr< RowSetMemoryOwner > row_set_mem_owner, const Executor *executor)
 
TargetValue anonymous_namespace{ResultSetIteration.cpp}::build_array_target_value (const SQLTypeInfo &array_ti, const int8_t *buff, const size_t buff_sz, const bool translate_strings, std::shared_ptr< RowSetMemoryOwner > row_set_mem_owner, const Executor *executor)
 
template<class Tuple , size_t... indices>
std::vector< std::pair< const int8_t *, const int64_t > > anonymous_namespace{ResultSetIteration.cpp}::make_vals_vector (std::index_sequence< indices... >, const Tuple &tuple)
 
std::unique_ptr< ArrayDatumanonymous_namespace{ResultSetIteration.cpp}::lazy_fetch_chunk (const int8_t *ptr, const int64_t varlen_ptr)
 
std::unique_ptr< ArrayDatumanonymous_namespace{ResultSetIteration.cpp}::fetch_data_from_gpu (int64_t varlen_ptr, const int64_t length, Data_Namespace::DataMgr *data_mgr, const int device_id)
 
template<typename T >
std::pair< int64_t, int64_t > anonymous_namespace{ResultSetIteration.cpp}::get_frag_id_and_local_idx (const std::vector< std::vector< T >> &frag_offsets, const size_t tab_or_col_idx, const int64_t global_idx)
 

Detailed Description

Iteration part of the row set interface.

Author
Alex Suhan alex@.nosp@m.mapd.nosp@m..com Copyright (c) 2014 MapD Technologies, Inc. All rights reserved.

Definition in file ResultSetIteration.cpp.

Function Documentation

◆ get_byteoff_of_slot()

size_t get_byteoff_of_slot ( const size_t  slot_idx,
const QueryMemoryDescriptor query_mem_desc 
)

Definition at line 110 of file ResultSetIteration.cpp.

References advance_slot(), advance_target_ptr_col_wise(), advance_target_ptr_row_wise(), align_to_int64(), CHECK, anonymous_namespace{TypedDataAccessors.h}::decimal_to_double(), get_cols_ptr(), get_key_bytes_rowwise(), QueryMemoryDescriptor::getPaddedColWidthForRange(), ResultSet::getRowAt(), and row_ptr_rowwise().

Referenced by ResultSetReductionJIT::isEmpty(), ResultSetStorage::isEmptyEntry(), and RowSortException::RowSortException().

111  {
112  return query_mem_desc.getPaddedColWidthForRange(0, slot_idx);
113 }
size_t getPaddedColWidthForRange(const size_t offset, const size_t range) const
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◆ lazy_decode()

int64_t lazy_decode ( const ColumnLazyFetchInfo col_lazy_fetch,
const int8_t *  byte_stream,
const int64_t  pos 
)

Definition at line 748 of file ResultSetIteration.cpp.

References CHECK, CHECK_EQ, fixed_width_double_decode_noinline(), fixed_width_float_decode_noinline(), fixed_width_int_decode_noinline(), fixed_width_small_date_decode_noinline(), fixed_width_unsigned_decode_noinline(), get_bit_width(), inline_fixed_encoding_null_val(), inline_int_null_val(), ColumnLazyFetchInfo::is_lazily_fetched, kENCODING_DATE_IN_DAYS, kENCODING_DICT, kENCODING_FIXED, kENCODING_NONE, kFLOAT, NULL_BIGINT, NULL_INT, NULL_SMALLINT, and ColumnLazyFetchInfo::type.

Referenced by ResultSet::lazyReadInt(), ResultSet::makeTargetValue(), and RowSortException::RowSortException().

750  {
751  CHECK(col_lazy_fetch.is_lazily_fetched);
752  const auto& type_info = col_lazy_fetch.type;
753  if (type_info.is_fp()) {
754  if (type_info.get_type() == kFLOAT) {
755  double fval = fixed_width_float_decode_noinline(byte_stream, pos);
756  return *reinterpret_cast<const int64_t*>(may_alias_ptr(&fval));
757  } else {
758  double fval = fixed_width_double_decode_noinline(byte_stream, pos);
759  return *reinterpret_cast<const int64_t*>(may_alias_ptr(&fval));
760  }
761  }
762  CHECK(type_info.is_integer() || type_info.is_decimal() || type_info.is_time() ||
763  type_info.is_timeinterval() || type_info.is_boolean() || type_info.is_string() ||
764  type_info.is_array());
765  size_t type_bitwidth = get_bit_width(type_info);
766  if (type_info.get_compression() == kENCODING_FIXED) {
767  type_bitwidth = type_info.get_comp_param();
768  } else if (type_info.get_compression() == kENCODING_DICT) {
769  type_bitwidth = 8 * type_info.get_size();
770  }
771  CHECK_EQ(size_t(0), type_bitwidth % 8);
772  int64_t val;
773  if (type_info.is_date_in_days()) {
774  val = type_info.get_comp_param() == 16
776  byte_stream, 2, NULL_SMALLINT, NULL_BIGINT, pos)
778  byte_stream, 4, NULL_INT, NULL_BIGINT, pos);
779  } else {
780  val = (type_info.get_compression() == kENCODING_DICT &&
781  type_info.get_size() < type_info.get_logical_size() &&
782  type_info.get_comp_param())
783  ? fixed_width_unsigned_decode_noinline(byte_stream, type_bitwidth / 8, pos)
784  : fixed_width_int_decode_noinline(byte_stream, type_bitwidth / 8, pos);
785  }
786  if (type_info.get_compression() != kENCODING_NONE &&
787  type_info.get_compression() != kENCODING_DATE_IN_DAYS) {
788  CHECK(type_info.get_compression() == kENCODING_FIXED ||
789  type_info.get_compression() == kENCODING_DICT);
790  auto encoding = type_info.get_compression();
791  if (encoding == kENCODING_FIXED) {
792  encoding = kENCODING_NONE;
793  }
794  SQLTypeInfo col_logical_ti(type_info.get_type(),
795  type_info.get_dimension(),
796  type_info.get_scale(),
797  false,
798  encoding,
799  0,
800  type_info.get_subtype());
801  if (val == inline_fixed_encoding_null_val(type_info)) {
802  return inline_int_null_val(col_logical_ti);
803  }
804  }
805  return val;
806 }
const SQLTypeInfo type
Definition: ResultSet.h:232
#define CHECK_EQ(x, y)
Definition: Logger.h:195
DEVICE NEVER_INLINE int64_t SUFFIX() fixed_width_int_decode_noinline(const int8_t *byte_stream, const int32_t byte_width, const int64_t pos)
Definition: DecodersImpl.h:83
#define NULL_BIGINT
Definition: sqltypes.h:174
size_t get_bit_width(const SQLTypeInfo &ti)
DEVICE NEVER_INLINE int64_t SUFFIX() fixed_width_unsigned_decode_noinline(const int8_t *byte_stream, const int32_t byte_width, const int64_t pos)
Definition: DecodersImpl.h:90
#define NULL_INT
Definition: sqltypes.h:173
DEVICE NEVER_INLINE int64_t SUFFIX() fixed_width_small_date_decode_noinline(const int8_t *byte_stream, const int32_t byte_width, const int32_t null_val, const int64_t ret_null_val, const int64_t pos)
Definition: DecodersImpl.h:141
const bool is_lazily_fetched
Definition: ResultSet.h:230
#define NULL_SMALLINT
Definition: sqltypes.h:172
#define CHECK(condition)
Definition: Logger.h:187
int64_t inline_int_null_val(const SQL_TYPE_INFO &ti)
int64_t inline_fixed_encoding_null_val(const SQL_TYPE_INFO &ti)
DEVICE NEVER_INLINE float SUFFIX() fixed_width_float_decode_noinline(const int8_t *byte_stream, const int64_t pos)
Definition: DecodersImpl.h:113
DEVICE NEVER_INLINE double SUFFIX() fixed_width_double_decode_noinline(const int8_t *byte_stream, const int64_t pos)
Definition: DecodersImpl.h:126
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