duckdb::ChunkVectorInfo Class Reference

Inheritance diagram for duckdb::ChunkVectorInfo:

Collaboration diagram for duckdb::ChunkVectorInfo:

Public Member Functions
	ChunkVectorInfo (FixedSizeAllocator &allocator, idx_t start, transaction_t insert_id=0)
idx_t	GetSelVector (ScanOptions options, optional_ptr< SelectionVector > sel_vector, idx_t max_count) const override
bool	Fetch (TransactionData transaction, row_t row) override
	Returns whether or not a single row in the ChunkInfo should be used or not for the given transaction.
void	CommitAppend (transaction_t commit_id, idx_t start, idx_t end) override
bool	Cleanup (transaction_t lowest_transaction) const override
string	ToString (idx_t max_count) const override
void	Append (idx_t start, idx_t end, transaction_t commit_id)
idx_t	Delete (transaction_t transaction_id, row_t rows[], idx_t count)
void	CommitDelete (transaction_t commit_id, const DeleteInfo &info)
bool	HasDeletes (transaction_t transaction_id=MAX_TRANSACTION_ID) const override
bool	AnyDeleted () const
bool	HasConstantInsertionId () const
transaction_t	ConstantInsertId () const
void	Write (WriteStream &writer, transaction_t transaction_id) const override
Public Member Functions inherited from duckdb::ChunkInfo
	ChunkInfo (idx_t start, ChunkInfoType type)
idx_t	GetCheckpointRowCount (TransactionData transaction, idx_t max_count)
idx_t	GetCommittedDeletedCount (idx_t max_count) 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)
Static Public Member Functions inherited from duckdb::ChunkInfo
static unique_ptr< ChunkInfo >	Read (FixedSizeAllocator &allocator, ReadStream &reader)

Static Public Attributes
static constexpr const ChunkInfoType	TYPE = ChunkInfoType::VECTOR_INFO

Private Member Functions
template<class INSERT_OP , class DELETE_OP >
idx_t	TemplatedGetSelVector (transaction_t start_time, transaction_t transaction_id, optional_ptr< SelectionVector > sel_vector, idx_t max_count) const
IndexPointer	GetInsertedPointer () const
IndexPointer	GetDeletedPointer () const
IndexPointer	GetInitializedInsertedPointer ()
IndexPointer	GetInitializedDeletedPointer ()

Private Attributes
FixedSizeAllocator &	allocator
IndexPointer	inserted_data
	The transaction ids of the transactions that inserted the tuples (if any)
transaction_t	constant_insert_id
	The constant insert id (if there is only one)
IndexPointer	deleted_data
	The transaction ids of the transactions that deleted the tuples (if any)

Additional Inherited Members
Public Attributes inherited from duckdb::ChunkInfo
idx_t	start
	The row index of the first row.
ChunkInfoType	type
	The ChunkInfo type.

Member Function Documentation

GetSelVector()

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

overridevirtual

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

Implements duckdb::ChunkInfo.

Fetch()

bool duckdb::ChunkVectorInfo::Fetch ( TransactionData  transaction, row_t  row  )

overridevirtual

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

Implements duckdb::ChunkInfo.

CommitAppend()

void duckdb::ChunkVectorInfo::CommitAppend ( transaction_t  commit_id, idx_t  start, idx_t  end  )

overridevirtual

Implements duckdb::ChunkInfo.

Cleanup()

bool duckdb::ChunkVectorInfo::Cleanup ( transaction_t  lowest_transaction ) const

overridevirtual

Reimplemented from duckdb::ChunkInfo.

ToString()

string duckdb::ChunkVectorInfo::ToString ( idx_t  max_count ) const

overridevirtual

Implements duckdb::ChunkInfo.

Delete()

idx_t duckdb::ChunkVectorInfo::Delete	(	transaction_t	transaction_id,
		row_t	rows[],
		idx_t	count
	)

Performs a delete in the ChunkVectorInfo - returns how many tuples were actually deleted The number of rows that were actually deleted might be lower than the input count In case we delete rows that were already deleted Note that "rows" is written to to reflect the row ids that were actually deleted i.e. after calling this function, rows will hold [0..actual_delete_count] row ids of the actually deleted tuples

HasDeletes()

bool duckdb::ChunkVectorInfo::HasDeletes ( transaction_t  transaction_id = MAX_TRANSACTION_ID ) const

overridevirtual

Implements duckdb::ChunkInfo.

Write()

void duckdb::ChunkVectorInfo::Write ( WriteStream &  writer, transaction_t  transaction_id  ) const

overridevirtual

Reimplemented from duckdb::ChunkInfo.

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

• external/duckdb/duckdb.hpp