{// Union field consistency_type can be only one of the following:"readConsistency": enum (ReadConsistency),"transaction": string,"newTransaction": {object (TransactionOptions)},"readTime": string// End of list of possible types for union field consistency_type.}
Fields
Union field consistency_type. For Cloud Firestore in Datastore mode, if you don't specify read_consistency then all lookups and queries default to read_consistency=STRONG. Note that, in Cloud Datastore, global queries defaulted to read_consistency=EVENTUAL.
Explicitly setting read_consistency=EVENTUAL will result in eventually consistent lookups and queries. consistency_type can be only one of the following:
Reads entities as they were at the given time. This value is only supported for Cloud Firestore in Datastore mode.
This must be a microsecond precision timestamp within the past one hour, or if Point-in-Time Recovery is enabled, can additionally be a whole minute timestamp within the past 7 days.
A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".