parquet

package

v0.0.0-...-fecdc3c Latest Latest Go to latest Published: May 5, 2021 License: Apache-2.0 Imports: 6 Imported by: 0

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type ParquetFileReader struct {
	NumRows int
	Cursor  int
	// contains filtered or unexported fields
}

func New(readerx filesystem.VirtualFile, fileName string) *ParquetFileReader

func (self *ParquetFileReader) Read() (row *util.Row, err error)

func (self *ParquetFileReader) ReadHeader() (fieldNames []string, err error)

type PqFile struct {
	FileName string
	VF       filesystem.VirtualFile
}

func (self *PqFile) Close() error

func (self *PqFile) Create(name string) (source.ParquetFile, error)

func (self *PqFile) Open(name string) (source.ParquetFile, error)

func (self *PqFile) Read(b []byte) (n int, err error)

func (self *PqFile) Seek(offset int64, pos int) (int64, error)

func (self *PqFile) Write(b []byte) (n int, err error)