可选chunkBreaks save execution into chunks of a given size. For example, if you want to save 100,000 objects but you have issues with saving them, you can break them into 10 groups of 10,000 objects (by setting { chunk: 10000 }) and save each group separately. This option is needed to perform very big insertions when you have issues with underlying driver parameter number limitation.
可选dataAdditional data to be passed with persist method. This data can be used in subscribers then.
可选listenersIndicates if listeners and subscribers are called for this operation. By default they are enabled, you can disable them by setting { listeners: false } in save/remove options.
可选reloadFlag to determine whether the entity that is being persisted should be reloaded during the persistence operation.
It will work only on databases which does not support RETURNING / OUTPUT statement. Enabled by default.
可选transactionBy default transactions are enabled and all queries in persistence operation are wrapped into the transaction. You can disable this behaviour by setting { transaction: false } in the persistence options.
Special options passed to Repository#save, Repository#insert and Repository#update methods.