uros-db opened a new pull request, #52784:
URL: https://github.com/apache/spark/pull/52784
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### What changes were proposed in this pull request?
This PR implements rudimentary `WKB` read/write capabilities for `Geography`
and `Geometry`, introduces a minimal set of ST expressions for WKB handling in
Catalyst, and registers the new SQL functions under the new `st_funcs` group.
Note that full standard geospatial format parsing support (as well as other
specialized ST expressions) will be properly implemented and fully tested in
the upcoming separate tasks.
### Why are the changes needed?
Establish a minimal ST expression framework, laying the groundwork for
proper WKB handling support, and the foundations for expanding spatial function
support in the near future.
### Does this PR introduce _any_ user-facing change?
Yes, this PR introduces 3 new Catalyst expressions and corresponding SQL
functions: `ST_AsBinary`, `ST_GeogFromWKB`, `ST_GeomFromWKB`.
### How was this patch tested?
Added new Scala unit test suites:
- `StUtilsSuite.java`
- `StExpressionsSuite.java`
Added a new E2E SQL test file:
- `st-functions.sql`
Added appropriate test cases to:
- `GeographyExecutionSuite.java`
- `GeometryExecutionSuite.java`
### Was this patch authored or co-authored using generative AI tooling?
No.
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