[LUCENE-9843] Remove compression option on doc values

• Type: Improvement
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 9.0
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Adrien Grand
• Created: 15/Mar/21 14:31
• Updated: 28/Aug/22 16:17
• Resolved: 06/May/21 21:08

Description

Options on file formats add complexity and put a big tax on backward-compatibility testing. I'm the one who introduced it LUCENE-9378 but I would now like to think about what we can do to remove this option.

For the record, compression was initially introduced because some binary fields have so much redundancy that it's wasteful not to compress them at all. But unfortunately, this slowed down some search workloads and we decided to introduce this option as a way to let users choose the trade-off they want.