Module reader 

Re-exports

use crate::arrow::ProjectionMask; 🔒

use crate::encryption::decrypt::FileDecryptionProperties; 🔒

use crate::errors::ParquetError; 🔒

use crate::errors::Result; 🔒

use crate::file::FOOTER_SIZE; 🔒

use crate::file::metadata::dictionary::decode_dictionary_page; 🔒

use crate::file::metadata::page_index::PageIndex; 🔒

use crate::file::metadata::page_index::PageIndexProvider; 🔒

use crate::file::metadata::parser::decode_metadata; 🔒

use crate::file::metadata::thrift::parquet_schema_from_bytes; 🔒

use crate::file::metadata::FooterTail; 🔒

use crate::file::metadata::ParquetMetaData; 🔒

use crate::file::metadata::ParquetMetaDataOptions; 🔒

use crate::file::metadata::ParquetMetaDataPushDecoder; 🔒

use crate::file::reader::ChunkReader; 🔒

use crate::schema::types::SchemaDescriptor; 🔒

use arrow_array::ArrayRef; 🔒

use bytes::Bytes; 🔒

use std::collections::BTreeSet; 🔒

use std::iter::FusedIterator; 🔒

use std::slice::Iter; 🔒

use std::sync::Arc; 🔒

use std::io::Read; 🔒

use std::ops::Range; 🔒

use crate::DecodeResult; 🔒

use crate::arrow::async_reader::MetadataFetch; 🔒

use crate::arrow::async_reader::MetadataSuffixFetch; 🔒

Structs

ColumnChunkMask

A cheaply cloneable struct to specify column chunks for which metadata is required.

ParquetMetaDataReader

Reads ParquetMetaData from a byte stream, with either synchronous or asynchronous I/O.

Enums

AxisIndices 🔒

NeedsIndexData 🔒

The bounds needed to read page indexes

PageIndexPolicy

Describes the policy for reading page indexes

Functions

dictionary_page_byte_range 🔒

Returns the [start, end) byte range of a column chunk’s dictionary page, or None if the column chunk has no dictionary page or is not a BYTE_ARRAY column (the only physical type decode_dictionary_page currently supports).

needs_page_index_data 🔒

Determines a single combined range of bytes needed to read the page indexes, or returns the metadata and decoded page index if no additional data is needed.

parse_page_index_data 🔒

Given a push decoder that has had the needed ranges pushed to it, decode and return the metadata and page indexes.