Sign in with Microsoft
Sign in or create an account.
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.


Microsoft SQL Server 2014 persists columnstore data as large object (LOB) data types. When columnstore data is read, it flows through a buffer pool to the columnstore object pool. The fix in this article changes the life cycle of these LOB pages within the buffer pool to improve memory availability to the columnstore object pool for improved query performance.

The decreased memory availability to the columnstore object pool occurs because of a regression that occurs after you apply update 3029977.

Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


Learn about the terminology Microsoft uses to describe software updates.

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Was this information helpful?

What affected your experience?
By pressing submit, your feedback will be used to improve Microsoft products and services. Your IT admin will be able to collect this data. Privacy Statement.

Thank you for your feedback!