The empty answer rows a kickoff seeds, one per snapshot field, built with the same column shape the
pipeline's own upsert writes. status and value are NULL: the row exists so the field is visible and
hand-fillable, and carries no claim about what the fill will find.
The empty answer rows a kickoff seeds, one per snapshot field, built with the same column shape the pipeline's own upsert writes.
statusandvalueare NULL: the row exists so the field is visible and hand-fillable, and carries no claim about what the fill will find.