davidlghellin opened a new pull request, #20506:
URL: https://github.com/apache/datafusion/pull/20506
## Which issue does this PR close?
- NA
## Rationale for this change
Spark's `java.net.URI` treats schemeless strings (e.g. `'notaurl'`) as
relative URIs where the entire input becomes the path component. The Rust `url`
crate rejects these with `RelativeUrlWithoutBase`, and the current
implementation maps all such errors to `NULL` — but Spark returns the input
string for `PATH` and `FILE`.
## What changes are included in this PR?
- In `parse_url.rs`, when catching `RelativeUrlWithoutBase` for schemeless
URLs, return the input string for `PATH` and `FILE` parts instead of `NULL`
- Updated unit tests and sqllogictests for both `parse_url` and
`try_parse_url`
## Are these changes tested?
Yes:
- Unit test `test_parse_schemeless_url` covers all 8 URL parts against a
schemeless input
- sqllogictest coverage in `parse_url.slt` and `try_parse_url.slt`
## Are there any user-facing changes?
Yes — `parse_url('notaurl', 'PATH')` and `parse_url('notaurl', 'FILE')` now
return `'notaurl'` instead of `NULL`, matching Spark behavior.
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