Module read

Modules

• levels

Structs

• BasicDecompressor
  A [FallibleStreamingIterator] that decompresses CompressedPage into DataPage.
• ColumnIterator
  A MutStreamingIterator that reads column chunks one by one, returning a PageReader per column.
• PageMetaData
  This meta is a small part of ColumnChunkMetadata.
• PageReader
  A fallible Iterator of CompressedDataPage. This iterator reads pages back to back until all pages have been consumed.
• ReadColumnIterator
  A MutStreamingIterator of pre-read column chunks

Enums

• State
  State of MutStreamingIterator.

Traits

• MutStreamingIterator
  A special kind of fallible streaming iterator where advance consumes the iterator.
• PageIterator

Functions

• decompress
  Decompresses the page, using buffer for decompression. If page.buffer.len() == 0, there was no decompression and the buffer was moved. Else, decompression took place.
• deserialize_metadata
  Parse loaded metadata bytes
• get_column_iterator
  Returns a ColumnIterator of column chunks corresponding to field.
• get_page_iterator
  Returns a new PageReader by seeking reader to the beginning of column_chunk.
• read_metadata
  Reads a FileMetadata from the reader, located at the end of the file.
• read_metadata_with_size
  Reads a FileMetadata from the reader, located at the end of the file, with known file size.