HippoBaro commented on code in PR #9804:
URL: https://github.com/apache/arrow-rs/pull/9804#discussion_r3142920044
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parquet/src/arrow/push_decoder/remaining.rs:
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@@ -17,29 +17,179 @@
use crate::DecodeResult;
use crate::arrow::arrow_reader::{ParquetRecordBatchReader, RowSelection};
-use crate::arrow::push_decoder::reader_builder::RowGroupReaderBuilder;
+use crate::arrow::push_decoder::reader_builder::{
+ RowBudget, RowGroupBuildResult, RowGroupReaderBuilder,
+};
use crate::errors::ParquetError;
use crate::file::metadata::ParquetMetaData;
use bytes::Bytes;
use std::collections::VecDeque;
use std::ops::Range;
use std::sync::Arc;
+#[derive(Debug, Clone, Copy, Eq, PartialEq)]
+enum QueuedRowGroupDecision {
+ NeedThis,
+ SkipThis { remaining_budget: RowBudget },
+ SkipAllRemaining,
+}
+#[derive(Debug)]
+struct NextRowGroup {
+ row_group_idx: usize,
+ row_count: usize,
+ selection: Option<RowSelection>,
+ budget: RowBudget,
+}
+
+#[derive(Debug)]
+struct SelectionFrontier {
+ selection: Option<RowSelection>,
Review Comment:
Agreed. I removed it and inlined the logic as suggested 🙇
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