The GitHub Actions job "Required Checks" on 
texera.git/feat/empty-table-declared-columns has failed.
Run started by GitHub user kz930 (triggered by kz930).

Head commit for run:
9dae77bfd57ade6d013e935ea900856b26ca87c6 / kary zheng <[email protected]>
feat(python): give a port that carried no rows its declared columns

A port that finished with no rows reached a Python table operator as a
table with no columns, because the column names were read off the tuples.
Any operator naming one of its columns then raised KeyError, Sort and the
visualization operators among them. The runtime now records each input
port's declared schema on the executor, and a table operator handed no
rows gets those columns with no rows under them.

Closes https://github.com/apache/texera/issues/8735

Co-Authored-By: Claude Opus 5.5 <[email protected]>

Report URL: https://github.com/apache/texera/actions/runs/36642384683

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