Class TransactionSelector (1.16.0)

Version 1.16.0

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This message is used to select the transaction in which a Read][google.spanner.v1.Spanner.Read] or ExecuteSql][google.spanner.v1.Spanner.ExecuteSql] call runs.

See TransactionOptions][google.spanner.v1.TransactionOptions] for more information about transactions.

Execute the read or SQL query in a temporary transaction. This is the most efficient way to execute a transaction that consists of a single SQL query.

Begin a new transaction and execute this read or SQL query in it. The transaction ID of the new transaction is returned in [ ResultSetMetadata.transaction][google.spanner.v1.ResultSetMeta data.transaction], which is a Transaction][google.spanner.v1.Transaction].