MongoDB\Driver\Manager::startSession

Parámetros

options

options

Option	Type	Description	Default
causalConsistency	bool	Configure causal consistency in a session. If true, each operation in the session will be causally ordered after the previous read or write operation. Set to false to disable causal consistency. See » Casual Consistency in the MongoDB manual for more information.	true
defaultTransactionOptions	array	Default options to apply to newly created transactions. These options are used unless they are overridden when a transaction is started with different value for each option. options Option Type Description maxCommitTimeMS integer The maximum amount of time in milliseconds to allow a single commitTransaction command to run. If specified, maxCommitTimeMS must be a signed 32-bit integer greater than or equal to zero. readConcern MongoDB\Driver\ReadConcern Un asunto de escritura a aplicar a la operación. Esta opción está disponible en MongoDB 3.2+ y resultará en una excepción en tiempo de ejecución si es especificada para una versión de servidor más antigua. readPreference MongoDB\Driver\ReadPreference Una preferencia de lectura a usar para seleccionar un servidor para la operación. writeConcern MongoDB\Driver\WriteConcern Un asunto de escritura a aplicar a la operación. This option is available in MongoDB 4.0+.	[]
snapshot	bool	Configure snapshot reads in a session. If true, a timestamp will be obtained from the first supported read operation in the session (i.e. find, aggregate, or unsharded distinct). Subsequent read operations within the session will then utilize a "snapshot" read concern level to read majority-committed data from that timestamp. Set to false to disable snapshot reads. Snapshot reads require MongoDB 5.0+ and cannot be used with causal consistency, transactions, or write operations. If "snapshot" is true, "causalConsistency" will default to false. See » Read Concern "snapshot" in the MongoDB manual for more information.	false