readTime property
The time at which the aggregate result was computed.
This is always monotonically increasing; in this case, the previous
AggregationResult in the result stream are guaranteed not to have changed
between their read_time
and this one. If the query returns no results, a
response with read_time
and no result
will be sent, and this
represents the time at which the query was run.
Implementation
core.String? readTime;