fix(python): read_database
now properly handles empty result sets from arrow-odbc
#14916
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Closes #14906.
If nothing is yielded from
read_arrow_batches_from_odbc
(eg: no matching rows for the given query), we now construct an emptyRecordBatch
with the correct schema and yield that, allowing for successful frame init (vs the currentValueError
).Reproduced the issue (and validated the fix) against a local SQL Server instance running in a Docker container, connecting via ODBC.