A few of the customer-requested updates in Microsoft SQL Server 2014 SP1 are:
- Column store performance is improved when batch mode operators spill
over to disk. A new XEvent provides insights into column store inserts.
- Several issues in buffer pool extension SSD configuration are
addressed, including the ability to do instant initialization of the
buffer pool extension file.
- Certain queries compile faster when using new cardinality estimator,
and other cardinality estimation query plans are more efficient when
using TF-4199.
- The scalability benefits of two trace flags (TF-1236, TF-9024) are applied automatically.
- Backup header information retrieval works better with encrypted backups.