duckdb::MultiFileReaderData Struct Reference

Per-file data for the multi file reader. More...

Collaboration diagram for duckdb::MultiFileReaderData:

Public Member Functions
	MultiFileReaderData (const OpenFileInfo &file_to_be_opened)
	MultiFileReaderData (shared_ptr< BaseFileReader > reader_p)
	MultiFileReaderData (shared_ptr< BaseUnionData > union_data_p)

Public Attributes
shared_ptr< BaseFileReader >	reader
	Currently opened reader for the file.
weak_ptr< BaseFileReader >	closed_reader
	The file reader after we have started all scans to the file.
MultiFileFileState	file_state
	Flag to indicate the file is being opened.
unique_ptr< mutex >	file_mutex
	Mutexes to wait for the file when it is being opened.
shared_ptr< BaseUnionData >	union_data
	Options for opening the file.
MultiFileConstantMap	constant_map
	The constants that should be applied at the various positions.
vector< unique_ptr< Expression > >	expressions
	The set of expressions that should be evaluated to obtain the final result.
OpenFileInfo	file_to_be_opened
	(only set when file_state is UNOPENED) the file to be opened

Detailed Description

Per-file data for the multi file reader.

Constructor & Destructor Documentation

MultiFileReaderData() [1/3]

duckdb::MultiFileReaderData::MultiFileReaderData ( const OpenFileInfo &  file_to_be_opened )

inlineexplicit

        : reader(nullptr), file_state(MultiFileFileState::UNOPENED), file_mutex(make_uniq<mutex>()),
          file_to_be_opened(file_to_be_opened) {
    }

MultiFileReaderData() [2/3]

duckdb::MultiFileReaderData::MultiFileReaderData ( shared_ptr< BaseFileReader >  reader_p )

inlineexplicit

        : reader(std::move(reader_p)), file_state(MultiFileFileState::OPEN), file_mutex(make_uniq<mutex>()) {
    }

MultiFileReaderData() [3/3]

duckdb::MultiFileReaderData::MultiFileReaderData ( shared_ptr< BaseUnionData >  union_data_p )

inlineexplicit

                                                                         : file_mutex(make_uniq<mutex>()) {
        if (union_data_p->reader) {
            reader = std::move(union_data_p->reader);
            file_state = MultiFileFileState::OPEN;
        } else {
            union_data = std::move(union_data_p);
            file_state = MultiFileFileState::UNOPENED;
        }
    }

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

• external/duckdb/duckdb.cpp