struct_like.h File Reference

#include <functional>
#include <memory>
#include <span>
#include <string_view>
#include <variant>
#include "iceberg/expression/literal.h"
#include "iceberg/result.h"
#include "iceberg/type_fwd.h"
#include "iceberg/util/decimal.h"

Go to the source code of this file.

Classes
class	iceberg::StructLike
	An immutable struct-like wrapper. More...
class	iceberg::ArrayLike
	An immutable array-like wrapper. More...
class	iceberg::MapLike
	An immutable map-like wrapper. More...
class	iceberg::StructLikeAccessor
	An accessor for a struct-like object. More...

Typedefs
using	iceberg::Scalar = std::variant< std::monostate, bool, int32_t, int64_t, float, double, std::string_view, Decimal, std::shared_ptr< StructLike >, std::shared_ptr< ArrayLike >, std::shared_ptr< MapLike > >
	A scalar value depending on its data type.

Functions
Result< Scalar >	iceberg::LiteralToScalar (const Literal &literal)
	Convert a Literal to a Scalar.

Detailed Description

Structures for viewing data in a row-based format. This header contains the definition of StructLike, ArrayLike, and MapLike which provide an unified interface for viewing data from ArrowArray or structs like ManifestFile and ManifestEntry. Note that they do not carry type information and should be used in conjunction with the schema to get the type information.

Typedef Documentation

Scalar

using iceberg::Scalar = typedef std::variant<std::monostate, bool, int32_t, int64_t, float, double, std::string_view, Decimal, std::shared_ptr<StructLike>, std::shared_ptr<ArrayLike>, std::shared_ptr<MapLike> >

A scalar value depending on its data type.

Note that all string and binary values are stored as non-owned string_view and their lifetime is managed by the wrapped object.