Module cursor 

Execution time iteration over a RowSelection.

A ReadPlan resolves a RowSelectionPolicy into a RowSelectionStrategy and builds the matching RowSelectionCursor, which keeps the per-reader position while the selection itself stays immutable.

Re-exports

use super::RowSelection; 🔒

use super::RowSelector; 🔒

use crate::errors::ParquetError; 🔒

use arrow_array::BooleanArray; 🔒

use arrow_buffer::BooleanBuffer; 🔒

use arrow_buffer::bit_chunk_iterator::BitChunks; 🔒

use std::collections::VecDeque; 🔒

use std::ops::Range; 🔒

use std::sync::Arc; 🔒

Structs

LoadedRowRanges 🔒

Row ranges whose backing pages are loaded for every projected column.

MaskChunk

Result of computing the next chunk to read when using a MaskCursor

MaskCursor

Cursor for iterating a mask-backed RowSelection

SelectorsCursor

Cursor for iterating a selector-backed RowSelection

Enums

RowSelectionCursor

Cursor for iterating a RowSelection during execution within a ReadPlan.

RowSelectionPolicy

Policy for picking a strategy to materialize RowSelection during execution.

RowSelectionStrategy 🔒

Fully resolved strategy for materializing RowSelection during execution.