QuakeWang opened a new pull request, #525:
URL: https://github.com/apache/paimon-rust/pull/525
<!--
Thank you very much for contributing to Paimon Rust - we are happy that you
want to help us improve it. To help the community review your contribution in
the best possible way, please go through the checklist below, which will get
the contribution into a shape in which it can be best reviewed.
## Contribution Checklist
- Make sure that the pull request corresponds to a [GitHub
issue](https://github.com/apache/paimon-rust/issues). Exceptions are made for
typos in documentation or comments, which need no issue.
- Fill out the template below to describe the changes contributed by the
pull request. That will give reviewers the context they need to do the review.
- Make sure that the change passes the automated tests, i.e., `cargo test`
passes.
- Each pull request should address only one issue, not mix up code from
multiple issues.
**(The sections below can be removed for hotfixes or typos)**
-->
### Purpose
<!-- Linking this pull request to the issue -->
DataFusion already had `BlobDescriptor` serialization and resolution
support, but `SQLContext` did not expose the Java-compatible
`path_to_descriptor` and `descriptor_to_string` SQL APIs. Queries using either
the canonical names or `sys.*` aliases therefore failed as unknown functions.
<!-- What is the purpose of the change -->
### Brief change log
<!-- Please describe the changes made in this pull request and explain how
they address the issue -->
- add `path_to_descriptor` and `descriptor_to_string` with `sys.*` aliases
- register both functions in `SQLContext::new`
- match Java serialization, string formatting, NULL, and invalid-input
behavior
- document the SQL APIs
### Tests
<!-- List unit tests or integration cases to verify this change -->
- `cargo fmt --all -- --check`
- `cargo clippy --all-targets --workspace --features fulltext,vortex -- -D
warnings`
- `cargo test -p paimon --lib blob_descriptor`
- `cargo test -p paimon-datafusion --test blob_descriptor_functions --test
blob_tests --test sql_context_tests`
### API and Format
<!-- Does this change affect API or storage format -->
Adds four SQL function names and `Display` for `BlobDescriptor`. No storage
format change.
### Documentation
<!-- Does this change introduce a new feature or require documentation
updates -->
Updated `docs/src/sql.md`.
--
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]
