mapleFU commented on code in PR #8712:
URL: https://github.com/apache/arrow-rs/pull/8712#discussion_r2463853259
##########
parquet/src/bin/parquet-layout.rs:
##########
@@ -55,9 +55,21 @@ use parquet::file::reader::ChunkReader;
use parquet::format::PageHeader;
use parquet::thrift::TSerializable;
+#[derive(Serialize, Debug)]
+struct Index {
+ offset: i64,
+ length: Option<i32>,
+}
+
+#[derive(Serialize, Debug)]
+struct Footer {
+ metadata_size: Option<usize>,
Review Comment:
This is required to estimate a `prefetch_hint` for files.
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