alamb opened a new pull request, #16263: URL: https://github.com/apache/datafusion/pull/16263
## Which issue does this PR close? - Related to https://github.com/delta-io/delta-rs/pull/3521 ## Rationale for this change While testing a DataFusion upgrade in delta.rs I found that that project used many of the subcrates in DataFusion directly. I made a PR to clean this up (https://github.com/delta-io/delta-rs/pull/3521) but I wanted to make it easier to understand which `datafusion-*` crate is designed to be used directly and which is not ## What changes are included in this PR? 1. Add a note to subcrates README.md files that are not intended to be used directly 2. Add a few missing READMEs I found while doing this ## Are these changes tested? By CI ## Are there any user-facing changes? (Hopefully) better documentation -- 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: github-unsubscr...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org