Cloud Firestore Admin V1 API - Module Google::Cloud::Firestore::Admin::V1::Database::ConcurrencyMode (v1.12.1)
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Reference documentation and code samples for the Cloud Firestore Admin V1 API module Google::Cloud::Firestore::Admin::V1::Database::ConcurrencyMode.
The type of concurrency control mode for transactions.
Constants
CONCURRENCY_MODE_UNSPECIFIED
OPTIMISTIC
value: 1
This is the default setting for Cloud Firestore Enterprise Edition
databases.
PESSIMISTIC
value: 2
This is the default setting for Cloud Firestore Standard Edition
databases.
OPTIMISTIC_WITH_ENTITY_GROUPS
value: 3
This mode is enabled for some databases that were automatically upgraded
from Cloud Datastore to Cloud Firestore with Datastore Mode.
It is not recommended for any new databases, and not supported for
Firestore Native databases.
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Last updated 2026-04-03 UTC.
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