Inheritance diagram for duckdb::MultiFileList:

[legend]

Public Member Functions
MultiFileListIterationHelper	Files () const
	Get Iterator over the files for pretty for loops.

void	InitializeScan (MultiFileListScanData &iterator) const
	Initialize a sequential scan over a file list.

bool	Scan (MultiFileListScanData &iterator, OpenFileInfo &result_file) const
	Scan the next file into result_file, returns false when out of files.

OpenFileInfo	GetFirstFile () const
	Returns the first file or an empty string if GetTotalFileCount() == 0.

bool	IsEmpty () const
	Syntactic sugar for GetExpandResult() == FileExpandResult::NO_FILES.

virtual unique_ptr< MultiFileList >	ComplexFilterPushdown (ClientContext &context, const MultiFileOptions &options, MultiFilePushdownInfo &info, vector< unique_ptr< Expression > > &filters) const
	Virtual functions for subclasses.

virtual unique_ptr< MultiFileList >	DynamicFilterPushdown (ClientContext &context, const MultiFileOptions &options, const vector< string > &names, const vector< LogicalType > &types, const vector< column_t > &column_ids, TableFilterSet &filters) const

virtual vector< OpenFileInfo >	GetAllFiles () const =0

virtual FileExpandResult	GetExpandResult () const =0

virtual idx_t	GetTotalFileCount () const =0
	Get the total file count - forces all files to be expanded / known so the exact count can be computed.

virtual MultiFileCount	GetFileCount (idx_t min_exact_count=0) const

virtual vector< OpenFileInfo >	GetDisplayFileList (optional_idx max_files=optional_idx()) const

virtual unique_ptr< NodeStatistics >	GetCardinality (ClientContext &context) const

virtual unique_ptr< MultiFileList >	Copy () const

template<class TARGET >
TARGET &	Cast ()

template<class TARGET >
const TARGET &	Cast () const

Protected Member Functions
virtual bool	FileIsAvailable (idx_t i) const
	Whether or not the file at the index is available instantly - or if this requires additional I/O.

virtual OpenFileInfo	GetFile (idx_t i) const =0
	Get the i-th expanded file.

Detailed Description

Abstract class for lazily generated list of file paths/globs NOTE: subclasses are responsible for ensuring thread-safety

Member Function Documentation

◆ GetAllFiles()

virtual vector< OpenFileInfo > duckdb::MultiFileList::GetAllFiles ( ) const

pure virtual

Implemented in duckdb::SimpleMultiFileList.

◆ GetTotalFileCount()

virtual idx_t duckdb::MultiFileList::GetTotalFileCount ( ) const

pure virtual

Get the total file count - forces all files to be expanded / known so the exact count can be computed.

Implemented in duckdb::SimpleMultiFileList, and duckdb::LazyMultiFileList.

◆ GetFileCount()

virtual MultiFileCount duckdb::MultiFileList::GetFileCount ( idx_t min_exact_count = 0 ) const

virtual

Get the file count - anything under "min_exact_count" is allowed to be incomplete (i.e. NOT_ALL_FILES_KNOWN) This allows us to get a rough idea of the file count

Reimplemented in duckdb::LazyMultiFileList.

◆ FileIsAvailable()

virtual bool duckdb::MultiFileList::FileIsAvailable ( idx_t i ) const

protectedvirtual

Whether or not the file at the index is available instantly - or if this requires additional I/O.

Reimplemented in duckdb::LazyMultiFileList.

◆ GetFile()

virtual OpenFileInfo duckdb::MultiFileList::GetFile ( idx_t i ) const

protectedpure virtual

Get the i-th expanded file.

Implemented in duckdb::SimpleMultiFileList, and duckdb::LazyMultiFileList.

◆ Cast() [1/2]

template<class TARGET >

TARGET & duckdb::MultiFileList::Cast ( )

inline

                   {
        DynamicCastCheck<TARGET>(this);
        return reinterpret_cast<TARGET &>(*this);
    }

◆ Cast() [2/2]