Module arrow2::io::parquet::read::indexes

API to perform page-level filtering (also known as indexes)

Structs

• ColumnPageStatistics
  ColumnPageStatistics contains the minimum, maximum, and null_count of each page of a parquet column, as an Array. This struct has the following invariants:
• FilteredPage
  An enum describing a page that was either selected in a filter pushdown or skipped
• Interval
  An interval

Enums

• FieldPageStatistics
  Page statistics of an Arrow field.

Functions

• compute_page_row_intervals
  Returns the set of (row) intervals of the pages.
• has_indexes
  Checks whether the row group have page index information (page statistics)
• read_columns_indexes
  Reads the column indexes from the reader assuming a valid set of derived Arrow fields for all parquet the columns in the file.
• read_filtered_pages
  Reads all page locations and index locations (IO-bounded) and uses predicate to compute the set of FilteredPage that fulfill the predicate.