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Enum IsolationLevel (3.4.0-rc)
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Defines the isolation level for a transaction.
This determines how concurrent transactions interact with each other and what consistency guarantees are provided for read and write operations.
Note:
This setting only applies to read-write transactions.
See the
v1::TransactionOptions proto for more details.
See Also
https://docs.cloud.google.com/spanner/docs/isolation-levels
Constants
Name Description
kUnspecifiedThe isolation level is not specified, using the backend default.
kSerializableAll transactions appear as if they executed in a serial order.
kRepeatableReadAll reads performed during the transaction observe a consistent snapshot of the database.
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Last updated 2026-03-13 UTC.
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