Nested Transactions support in Micronaut 4.0.0

[tmalinakis-vng]

Hi, it appears that nested transactions are not supported anymore in Micronaut Data 4.0.0. Manually creating savepoints was also removed from TransactionStatus. How are we supposed to create nested transactions? For reference, getting this exception:

io.micronaut.transaction.exceptions.TransactionUsageException: Transaction manager: DataSourceTransactionManager doesn't support nested transactions!
	at io.micronaut.transaction.support.AbstractTransactionOperations.nested(AbstractTransactionOperations.java:278)
	at io.micronaut.transaction.support.AbstractTransactionOperations.executeWithExistingTransaction(AbstractTransactionOperations.java:220)
	at io.micronaut.transaction.support.AbstractTransactionOperations.doExecute(AbstractTransactionOperations.java:130)
	at io.micronaut.transaction.support.AbstractTransactionOperations.doExecute(AbstractTransactionOperations.java:124)
	at io.micronaut.transaction.support.AbstractPropagatedStatusTransactionOperations.execute(AbstractPropagatedStatusTransactionOperations.java:65)

Thank you!

[dstepanov]

I will add nested TX support in one of the following minor releases. You can manually create a snapshot by accessing the connection from the transaction status.

[tmalinakis-vng]

Thank you!

[dstepanov]

Should come in 4.1 #2444