whether the stored procedure should be called on all shards --- results are concatenated together.
whether the stored procedure should be called on all shards --- return the first result found.
run sproc on multiple shards in parallel?
flag this stored procedure call as read only: read only sprocs may run in cases were writing calls would not be
allowed (maintenance, migration, ..)
Defines how sharded writes will be handled. If set to
, no transaction context will
be created. If set to
, all errors during the sproc call will be rolled back.
If set to
, all errors during sproc call and "prepare transaction" are rolled
back. In the last case, the Postgres instance must be configured to manage 2-phase-commits (XA).