duckdb::ChunkInfo Class Reference

Inheritance diagram for duckdb::ChunkInfo:

Public Member Functions
	ChunkInfo (idx_t start, ChunkInfoType type)
virtual idx_t	GetSelVector (ScanOptions options, optional_ptr< SelectionVector > sel_vector, idx_t max_count) const =0
idx_t	GetCheckpointRowCount (TransactionData transaction, idx_t max_count)
virtual bool	Fetch (TransactionData transaction, row_t row)=0
	Returns whether or not a single row in the ChunkInfo should be used or not for the given transaction.
virtual void	CommitAppend (transaction_t commit_id, idx_t start, idx_t end)=0
idx_t	GetCommittedDeletedCount (idx_t max_count) const
virtual bool	Cleanup (transaction_t lowest_transaction) const
virtual string	ToString (idx_t max_count) const =0
virtual bool	HasDeletes (transaction_t transaction_id=MAX_TRANSACTION_ID) const =0
virtual void	Write (WriteStream &writer, transaction_t transaction_id) const
template<class TARGET >
TARGET &	Cast ()
template<class TARGET >
const TARGET &	Cast () const

Static Public Member Functions
static unique_ptr< ChunkInfo >	Read (FixedSizeAllocator &allocator, ReadStream &reader)

Public Attributes
idx_t	start
	The row index of the first row.
ChunkInfoType	type
	The ChunkInfo type.

Constructor & Destructor Documentation

ChunkInfo()

duckdb::ChunkInfo::ChunkInfo ( idx_t  start, ChunkInfoType  type  )

inline

                                               : start(start), type(type) {
    }

~ChunkInfo()

virtual duckdb::ChunkInfo::~ChunkInfo ( )

inlinevirtual

                         {
    }

Member Function Documentation

GetSelVector()

virtual idx_t duckdb::ChunkInfo::GetSelVector ( ScanOptions  options, optional_ptr< SelectionVector >  sel_vector, idx_t  max_count  ) const

pure virtual

Gets up to max_count entries from the chunk info. If the ret is 0>ret>max_count, the selection vector is filled with the tuples

Implemented in duckdb::ChunkConstantInfo, and duckdb::ChunkVectorInfo.

Fetch()

virtual bool duckdb::ChunkInfo::Fetch ( TransactionData  transaction, row_t  row  )

pure virtual

Returns whether or not a single row in the ChunkInfo should be used or not for the given transaction.

Implemented in duckdb::ChunkConstantInfo, and duckdb::ChunkVectorInfo.

Cast() [1/2]

template<class TARGET >

TARGET & duckdb::ChunkInfo::Cast ( )

inline

                   {
        if (type != TARGET::TYPE) {
            throw InternalException("Failed to cast chunk info to type - query result type mismatch");
        }
        return reinterpret_cast<TARGET &>(*this);
    }

Cast() [2/2]

template<class TARGET >

const TARGET & duckdb::ChunkInfo::Cast ( ) const

inline

                               {
        if (type != TARGET::TYPE) {
            throw InternalException("Failed to cast chunk info to type - query result type mismatch");
        }
        return reinterpret_cast<const TARGET &>(*this);
    }

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

• external/duckdb/duckdb.hpp