Module parquet::file::writer

Contains file writer API, and provides methods to write row groups and columns by using row group writers and column writers respectively.

Structs

• SerializedColumnWriter
  A wrapper around a ColumnWriter that invokes a callback on Self::close
• SerializedFileWriter
  Parquet file writer API. Provides methods to write row groups sequentially.
• SerializedPageWriter
  A serialized implementation for Parquet PageWriter. Writes and serializes pages and metadata into output stream.
• SerializedRowGroupWriter
  Parquet row group writer API. Provides methods to access column writers in an iterator-like fashion, order is guaranteed to match the order of schema leaves (column descriptors).
• TrackedWrite
  A wrapper around a Write that keeps track of the number of bytes that have been written. The given Write is wrapped with a BufWriter to optimize writing performance.

Type Aliases

• OnCloseColumnChunk
  Callback invoked on closing a column chunk
• OnCloseRowGroup
  Callback invoked on closing a row group, arguments are: