table_view.hpp File Reference

Class definitions for (mutable)_table_view More...

#include <cudf/column/column_view.hpp>
#include <cudf/types.hpp>
#include <cudf/utilities/export.hpp>
#include <algorithm>
#include <vector>

Go to the source code of this file.

Classes
class	cudf::detail::table_view_base< ColumnView >
	Base class for a table of ColumnViews. More...
class	cudf::table_view
	A set of cudf::column_view's of the same size. More...
class	cudf::mutable_table_view
	A set of mutable_column_views of the same size. More...

Namespaces
	cudf
	cuDF interfaces

Functions
bool	cudf::detail::has_nested_columns (table_view const &table)
	Determine if any nested columns exist in a given table. More...
bool	cudf::has_nested_columns (table_view const &table)
	Determine if any nested columns exist in a given table. More...
bool	cudf::nullable (table_view const &view)
	Returns True if any of the columns in the table is nullable. (not entire hierarchy) More...
bool	cudf::has_nulls (table_view const &view)
	Returns True if the table has nulls in any of its columns. More...
bool	cudf::has_nested_nulls (table_view const &input)
	Returns True if the table has nulls in any of its columns hierarchy. More...
bool	cudf::has_nested_nullable_columns (table_view const &input)
	Returns True if the table has a nullable column at any level of the column hierarchy. More...
std::vector< column_view >	cudf::get_nullable_columns (table_view const &table)
	The function to collect all nullable columns at all nested levels in a given table. More...
table_view	cudf::scatter_columns (table_view const &source, std::vector< size_type > const &map, table_view const &target)
	Copy column_views from a table_view into another table_view according to a column indices map. More...
template<typename TableView >
bool	cudf::detail::is_relationally_comparable (TableView const &lhs, TableView const &rhs)
	Indicates whether respective columns in input tables are relationally comparable. More...

Detailed Description

Class definitions for (mutable)_table_view

A (mutable_)table_view is a set of (mutable_)column_views of equal size.

A (mutable_)table_view is non-owning and trivially copyable and should be passed by value.

Definition in file table_view.hpp.

Function Documentation

has_nested_columns()

bool cudf::detail::has_nested_columns

(

table_view const &

table

)

Determine if any nested columns exist in a given table.

Parameters

table

The input table

Returns

Whether nested columns exist in the input table

is_relationally_comparable()

template<typename TableView >

bool cudf::detail::is_relationally_comparable	(	TableView const &	lhs,
		TableView const &	rhs
	)

Indicates whether respective columns in input tables are relationally comparable.

Parameters

lhs	The first table
rhs	The second table (may be the same table as lhs)

Returns

true all of respective columns on lhs and 'rhstables are comparable. @return false any of respective columns onlhsand 'rhs tables are not comparable.