Collaboration diagram for duckdb::BatchedDataCollection:

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Classes
struct	CachedCollection

Public Member Functions
DUCKDB_API	BatchedDataCollection (ClientContext &context, vector< LogicalType > types, ColumnDataAllocatorType allocator_type=ColumnDataAllocatorType::IN_MEMORY_ALLOCATOR, ColumnDataCollectionLifetime lifetime=ColumnDataCollectionLifetime::REGULAR)

DUCKDB_API	BatchedDataCollection (ClientContext &context, vector< LogicalType > types, QueryResultMemoryType memory_type)

DUCKDB_API	BatchedDataCollection (ClientContext &context, vector< LogicalType > types, batch_map_t batches, ColumnDataAllocatorType allocator_type=ColumnDataAllocatorType::IN_MEMORY_ALLOCATOR, ColumnDataCollectionLifetime lifetime=ColumnDataCollectionLifetime::REGULAR)

DUCKDB_API void	Append (DataChunk &input, idx_t batch_index)
	Appends a datachunk with the given batch index to the batched collection.

DUCKDB_API void	Merge (BatchedDataCollection &other)
	Merge the other batched chunk collection into this batched collection.

void	InitializeScan (BatchedChunkScanState &state, const BatchedChunkIteratorRange &range)

DUCKDB_API void	InitializeScan (BatchedChunkScanState &state)
	Initialize a scan over the batched chunk collection.

DUCKDB_API void	Scan (BatchedChunkScanState &state, DataChunk &output)
	Scan a chunk from the batched chunk collection, in-order of batch index.

DUCKDB_API unique_ptr< ColumnDataCollection >	FetchCollection ()
	Fetch a column data collection from the batched data collection - this consumes all of the data stored within.

DUCKDB_API idx_t	Count () const
	Inspect how many tuples this batched data collection contains.

DUCKDB_API const vector< LogicalType > &	Types () const
	Inspect the types of the collection.

DUCKDB_API idx_t	BatchCount () const
	Inspect how many batches this collection contains.

DUCKDB_API idx_t	IndexToBatchIndex (idx_t index) const
	Retrieve the batch index of the nth batch in the collection.

DUCKDB_API idx_t	BatchSize (idx_t batch_index) const
	Inspect how big a given batch is.

const ColumnDataCollection &	Batch (idx_t batch_index) const
	Inspect a given batch through a const reference.

BatchedChunkIteratorRange	BatchRange (idx_t begin=0, idx_t end=DConstants::INVALID_INDEX)
	Create an iterator range from the provided indices.

DUCKDB_API string	ToString () const

DUCKDB_API void	Print () const

Private Member Functions
unique_ptr< ColumnDataCollection >	CreateCollection () const

Private Attributes
ClientContext &	context

vector< LogicalType >	types

ColumnDataAllocatorType	allocator_type

ColumnDataCollectionLifetime	lifetime

map< idx_t, unique_ptr< ColumnDataCollection > >	data
	The data of the batched chunk collection - a set of batch_index -> ColumnDataCollection pointers.

CachedCollection	last_collection
	The last batch collection that was inserted into.

Detailed Description

A BatchedDataCollection holds a number of data entries that are partitioned by batch index Scans over a BatchedDataCollection are ordered by batch index

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

external/duckdb/duckdb.cpp

Classes

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description