seqno property
A per-transaction sequence number used to identify this request.
This field makes each request idempotent such that if the request is received multiple times, at most one succeeds. The sequence number must be monotonically increasing within the transaction. If a request arrives for the first time with an out-of-order sequence number, the transaction can be aborted. Replays of previously handled requests yield the same response as the first execution. Required for DML statements. Ignored for queries.
Implementation
core.String? seqno;