Column< T > Struct Template Reference

#include <heavydbTypes.h>

Public Member Functions
DEVICE	Column (T *ptr, const int64_t num_rows)
DEVICE	Column (const Column &other)
DEVICE	Column (std::vector< T > &input_vec)
DEVICE T &	operator[] (const unsigned int index) const
DEVICE T *	getPtr () const
DEVICE int64_t	size () const
DEVICE void	setSize (int64_t num_rows)
DEVICE bool	isNull (int64_t index) const
DEVICE void	setNull (int64_t index)
DEVICE Column< T > &	operator= (const Column< T > &other)
std::string	toString () const
template<>
DEVICE bool	isNull (int64_t index) const
template<>
DEVICE void	setNull (int64_t index)

Public Attributes
T *	ptr_
int64_t	num_rows_

Detailed Description

template<typename T>
struct Column< T >

Definition at line 565 of file heavydbTypes.h.

Constructor & Destructor Documentation

template<typename T>

DEVICE Column< T >::Column ( T *  ptr, const int64_t  num_rows  )

inline

Definition at line 569 of file heavydbTypes.h.

: ptr_(ptr), num_rows_(num_rows) {}

template<typename T>

DEVICE Column< T >::Column ( const Column< T > &  other )

inline

Definition at line 573 of file heavydbTypes.h.

: ptr_(other.ptr_), num_rows_(other.num_rows_) {}

template<typename T>

DEVICE Column< T >::Column ( std::vector< T > &  input_vec )

inline

Definition at line 574 of file heavydbTypes.h.

      : ptr_(input_vec.data()), num_rows_(static_cast<int64_t>(input_vec.size())) {}

Member Function Documentation

template<typename T>

DEVICE T* Column< T >::getPtr ( ) const

inline

Definition at line 591 of file heavydbTypes.h.

References Column< T >::ptr_.

Referenced by get_column_mean(), get_column_stats(), and get_column_std_dev().

{ return ptr_; }

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template<typename T>

DEVICE bool Column< T >::isNull ( int64_t  index ) const

inline

Definition at line 595 of file heavydbTypes.h.

References is_null(), and Column< T >::ptr_.

Referenced by array_asarray__cpu_template(), ct_binding_scalar_multiply__cpu_template(), ct_overload_column_test__cpu_template(), ct_timestamp_add_offset(), ct_timestamp_extract(), ct_timestamp_test_columns_and_scalars__cpu(), get_column_metadata(), Column< TextEncodingDict >::getCString(), Column< TextEncodingDict >::getString(), and row_adder().

{ return is_null(ptr_[index]); }

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template<>

DEVICE bool Column< Timestamp >::isNull ( int64_t  index ) const

inline

Definition at line 836 of file heavydbTypes.h.

References is_null().

                                                                {
  return is_null(ptr_[index].time);
}

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template<typename T>

DEVICE Column<T>& Column< T >::operator= ( const Column< T > &  other )

inline

Definition at line 597 of file heavydbTypes.h.

References Column< T >::ptr_, Column< T >::size(), and heavydb.dtypes::T.

                                                      {
#ifndef __CUDACC__
    if (size() == other.size()) {
      memcpy(ptr_, &other[0], other.size() * sizeof(T));
    } else {
      throw std::runtime_error("cannot copy assign columns with different sizes");
    }
#else
    if (size() == other.size()) {
      for (unsigned int i = 0; i < size(); i++) {
        ptr_[i] = other[i];
      }
    } else {
      // TODO: set error
    }
#endif
    return *this;
  }

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template<typename T>

DEVICE T& Column< T >::operator[] ( const unsigned int  index ) const

inline

Definition at line 579 of file heavydbTypes.h.

References Column< T >::num_rows_, Column< T >::ptr_, and set_null().

                                                       {
    if (index >= num_rows_) {
#ifndef __CUDACC__
      throw std::runtime_error("column buffer index is out of range");
#else
      auto& null_value = Column_null_value<T>;
      set_null(null_value);
      return null_value;
#endif
    }
    return ptr_[index];
  }

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template<typename T>

DEVICE void Column< T >::setNull ( int64_t  index )

inline

Definition at line 596 of file heavydbTypes.h.

References Column< T >::ptr_, and set_null().

Referenced by array_asarray__cpu_template(), array_copier__cpu_template(), GeoRaster< T, Z >::calculate_slope_and_aspect(), ct_binding_scalar_multiply__cpu_template(), ct_overload_column_test__cpu_template(), ct_test_nullable(), ct_timestamp_add_offset(), ct_timestamp_extract(), ct_timestamp_test_columns_and_scalars__cpu(), ct_union_pushdown_projection__cpu_template(), ct_union_pushdown_stats__cpu_template(), GeoRaster< T, Z >::outputDenseColumns(), row_adder(), and sum_along_row__cpu_template().

{ set_null(ptr_[index]); }

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template<>

DEVICE void Column< Timestamp >::setNull ( int64_t  index )

inline

Definition at line 841 of file heavydbTypes.h.

References set_null().

                                                           {
  set_null(ptr_[index].time);
}

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template<typename T>

DEVICE void Column< T >::setSize ( int64_t  num_rows )

inline

Definition at line 593 of file heavydbTypes.h.

References Column< T >::num_rows_.

{ num_rows_ = num_rows; }

template<typename T>

DEVICE int64_t Column< T >::size ( ) const

inline

Definition at line 592 of file heavydbTypes.h.

References Column< T >::num_rows_.

Referenced by TableFunctionManager::allocate_output_buffers(), array_asarray__cpu_template(), GeoRaster< T, Z >::calculate_slope_and_aspect(), column_list_first_last(), column_list_get__cpu_(), GeoRaster< T, Z >::computeParallelImpl(), GeoRaster< T, Z >::computeSerialImpl(), ct_add_size_and_mul_alpha(), ct_binding_column2__cpu_template(), ct_binding_scalar_multiply__cpu_template(), ct_binding_str_length__cpu_(), ct_binding_template__cpu_template(), ct_copy_and_add_size(), ct_cursor_named_args__cpu_(), ct_get_string_chars__template(), ct_named_const_output__cpu_template(), ct_named_output__cpu_template(), ct_named_rowmul_output__cpu_template(), ct_named_user_const_output__cpu_template(), ct_overload_column_list_test2__cpu_template(), ct_overload_column_list_test__cpu_template(), ct_overload_column_test__cpu_template(), ct_pushdown_projection__cpu_template(), ct_pushdown_stats__cpu_template(), ct_sleep1__cpu_(), ct_sleep2(), ct_sparse_add(), ct_test_nullable(), ct_test_preflight_multicursor_qe227__cpu_(), ct_test_preflight_singlecursor_qe227__cpu_(), ct_test_preflight_sizer(), ct_test_preflight_sizer_const(), ct_throw_if_gt_100__cpu_template(), ct_timestamp_add_offset(), ct_timestamp_extract(), ct_timestamp_test_columns_and_scalars__cpu(), ct_timestamp_truncate(), ct_union_pushdown_projection__cpu_template(), ct_union_pushdown_stats__cpu_template(), dbscan__cpu_template(), GeoRaster< T, Z >::GeoRaster(), get_column_mean(), get_column_metadata(), get_column_min_max(), get_column_stats(), get_column_std_dev(), get_max_with_row_offset__cpu_(), Column< Array< T > >::getItem(), kmeans__cpu_template(), linear_reg_predict__cpu_template(), Column< T >::operator=(), Column< TextEncodingDict >::operator=(), row_adder(), row_addsub(), row_copier(), row_copier2__cpu__(), sort_coefs(), sort_column_limit__cpu_template(), and TableFunctions_Namespace::strip_column_metadata().

{ return num_rows_; }

template<typename T>

std::string Column< T >::toString ( ) const

inline

Definition at line 617 of file heavydbTypes.h.

References Column< T >::num_rows_, Column< T >::ptr_, to_string(), and typeName().

Referenced by Column< Array< T > >::concatItem(), Column< Array< T > >::getItem(), Column< Array< T > >::isNull(), Column< Array< T > >::setItem(), Column< Array< T > >::setNull(), and Column< TextEncodingDict >::toString().

                             {
    return ::typeName(this) + "(ptr=" + ::toString(reinterpret_cast<void*>(ptr_)) +
           ", num_rows=" + std::to_string(num_rows_) + ")";
  }

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Member Data Documentation

template<typename T>

int64_t Column< T >::num_rows_

Definition at line 567 of file heavydbTypes.h.

Referenced by Column< T >::operator[](), Column< TextEncodingDict >::operator[](), Column< T >::setSize(), Column< TextEncodingDict >::setSize(), Column< T >::size(), Column< Array< T > >::size(), Column< TextEncodingDict >::size(), Column< T >::toString(), and Column< TextEncodingDict >::toString().

template<typename T>

T* Column< T >::ptr_

Definition at line 566 of file heavydbTypes.h.

Referenced by ct_hamming_distance(), dbscan__cpu_template(), Column< TextEncodingDict >::getCString(), Column< T >::getPtr(), Column< TextEncodingDict >::getPtr(), Column< TextEncodingDict >::getString(), Column< T >::isNull(), Column< TextEncodingDict >::isNull(), kmeans__cpu_template(), linear_reg_fit__cpu_template(), linear_reg_predict__cpu_template(), Column< T >::operator=(), Column< TextEncodingDict >::operator=(), Column< T >::operator[](), Column< TextEncodingDict >::operator[](), Column< T >::setNull(), Column< TextEncodingDict >::setNull(), sort_column_limit__cpu_template(), TableFunctions_Namespace::strip_column_metadata(), Column< T >::toString(), and Column< TextEncodingDict >::toString().

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

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