[PR] [GH-3351][Python] Preserve generated GeoArrow column names [sedona]

["akashchamp (via GitHub)" <gi...@apache.org>]

akashchamp opened a new pull request, #3354:
URL: https://github.com/apache/sedona/pull/3354

   ## Did you read the Contributor Guide?
   
   Yes, I have read the [Contributor Rules](https://sedona.apache.org/latest/community/rule/) and [Contributor Development Guide](https://sedona.apache.org/latest/community/develop/).
   
   ## Is this PR related to a ticket?
   
   Yes. Closes #3351.
   
   ## What changes were proposed in this PR?
   
   `dataframe_to_arrow()` previously used `list(df)` to build its input expressions. Spark resolves a generated geometry name such as `st_point(1.0, 2.0)` as a dotted path, so conversion fails before GeoArrow encoding runs.
   
   Build explicit, backtick-quoted Spark column expressions from the schema names, escaping embedded backticks, before applying `ST_AsEWKB`. The original field name is still restored with `alias`, so generated geometry expressions retain their expected Arrow column name.
   
   ## How was this patch tested?
   
   - Added a regression using `SELECT ST_Point(1.0, 2.0)` without an alias.
   - Manually reproduced the issue: the unchanged path raised Spark's dotted-name `AnalysisException`; with this patch the input and Arrow table both reported `['st_point(1.0, 2.0)']` and one row.
   - `python/tests/utils/test_geoarrow.py`: 7 passed, 1 optional GeoArrow-types test skipped.
   - Black formatting check, `compileall`, and `git diff --check` passed.
   
   ## Did this PR include necessary documentation updates?
   
   No documentation changes are needed. This restores conversion for an existing DataFrame shape without changing the public API.
   


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Re: [PR] [GH-3351][Python] Preserve generated GeoArrow column names [sedona]

["jiayuasu (via GitHub)" <gi...@apache.org>]

jiayuasu merged PR #3354:
URL: https://github.com/apache/sedona/pull/3354


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