tustvold commented on code in PR #1719:
URL: https://github.com/apache/arrow-rs/pull/1719#discussion_r878742614
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parquet/src/file/mod.rs:
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@@ -48,12 +48,14 @@
//! let props = Arc::new(WriterProperties::builder().build());
//! let file = fs::File::create(&path).unwrap();
//! let mut writer = SerializedFileWriter::new(file, schema, props).unwrap();
-//! let mut row_group_writer = writer.next_row_group().unwrap();
-//! while let Some(mut col_writer) = row_group_writer.next_column().unwrap() {
-//! // ... write values to a column writer
-//! row_group_writer.close_column(col_writer).unwrap();
+//! {
Review Comment:
This is an example of the somewhat unfortunate manual scoping... I
personally think removing the trait indirection would make the code a lot
easier to understand...
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