viirya commented on code in PR #3625:
URL: https://github.com/apache/arrow-rs/pull/3625#discussion_r1090029414
##########
parquet/src/file/metadata.rs:
##########
@@ -50,7 +50,25 @@ use crate::schema::types::{
Type as SchemaType,
};
+/// [`Index`] for each row group of each column.
+///
+/// `column_index[row_group_number][column_number]` holds the
+/// [`Index`] corresponding to column `column_number` of row group
+/// `row_group_number`.
+///
+/// For example `column_index[2][3]` holds the [`Index`] for the forth
+/// column in the third row group of the parquet file.
Review Comment:
I read how `ArrowReaderBuilder` populates `columns_indexes` and so this
looks correct. 👍
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
