uros-db opened a new pull request, #52806:
URL: https://github.com/apache/spark/pull/52806
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### What changes were proposed in this pull request?
This PR disallows casting `GEOGRAPHY` and `GEOMETRY` to/from other data
types in the system (such as `BOOLEAN`, `BINARY`, `STRING`, and others). Note
that these types were recently introduced as part of:
https://github.com/apache/spark/pull/52491.
### Why are the changes needed?
`GeographyType` and `GeometryType` are not interoperable with any other
non-geospatial data types, so we need to forbid such casts explicitly in order
to avoid unexpected failures.
### Does this PR introduce _any_ user-facing change?
Yes, casts are disallowed for newly introduced geospatial types.
### How was this patch tested?
Added new unit tests to verify the expected behaviour:
- `CastWithAnsiOffSuite`
- `CastWithAnsiOnSuite`
Added new appropriate end-to-end SQL tests:
- `st-functions`
### Was this patch authored or co-authored using generative AI tooling?
No.
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