[ARROW-9137] [GLib][Ruby] Allow to read Parquet files in chunks (by RowGroup)

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.17.1
• Fix Version/s: 1.0.0
• Component/s: GLib, Ruby
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25247
• Assignee: Kouhei Sutou
• Reporter: Dimitrij Denissenko
• Created: 15/Jun/20 16:15
• Updated: 11/Jan/23 08:04
• Resolved: 06/Jul/20 19:55

Description

At the moment only `gparquet_arrow_file_reader_read_table` is exported which requires the reader to load all row-groups. Additionally, it would be extremely helpful to have access to the `ReadRowGroup` method which would allow reading parts of the file without having to load everything into memory.

Issue Links

• links to: GitHub Pull Request #7637