Module in_memory_row_group 

Re-exports

use crate::arrow::ProjectionMask; 🔒

use crate::arrow::array_reader::RowGroups; 🔒

use crate::arrow::arrow_reader::RowSelection; 🔒

use crate::column::page::PageIterator; 🔒

use crate::column::page::PageReader; 🔒

use crate::errors::ParquetError; 🔒

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

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

use crate::file::metadata::RowGroupMetaData; 🔒

use crate::file::page_index::offset_index::PageLocation; 🔒

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

use crate::file::reader::Length; 🔒

use crate::file::reader::SerializedPageReader; 🔒

use bytes::Buf; 🔒

use bytes::Bytes; 🔒

use std::ops::Range; 🔒

use std::sync::Arc; 🔒

Structs

ColumnChunkIterator 🔒

Implements PageIterator for a single column chunk, yielding a single PageReader

FetchRanges 🔒

What ranges to fetch for the columns in this row group

InMemoryRowGroup 🔒

An in-memory collection of column chunks

Enums

ColumnChunkData 🔒

An in-memory column chunk. This allows us to hold either dense column chunks or sparse column chunks and easily access them by offset.

ColumnFetch 🔒

What InMemoryRowGroup::fetch_ranges fetches for one column chunk.

Functions

column_selection 🔒

The selection that InMemoryRowGroup::fetch_ranges uses to choose the pages of column idx: expanded_selection (the selection expanded to batch boundaries) if cache_mask includes the column, else selection.

columns_to_fetch 🔒

The leaf columns in projection that are not yet read, in column order.

dictionary_range 🔒

Byte range of the dictionary page of a column chunk that starts at chunk_start: the bytes before the first data page, if any.

page_range 🔒

Byte range of a data page.