FIX: It takes longer than expected to create a filtered statistic after you create a clustered index on a partitioned table in SQL Server 2008 R2

Applies to: SQL Server 2008 R2 Service Pack 2SQL Server 2008 R2 DatacenterSQL Server 2008 R2 Developer

Symptoms


Consider the following scenario:
  • You have a partitioned table that contains a nonclustered index in Microsoft SQL Server 2008 R2.
  • You create a clustered index that is based on the first column in the partitioned table.
  • The table uses the partition key as the first column.
  • You create a filter on the partition key.
  • You try to create a filtered statistic for one of the columns. 
In this scenario, it takes longer than expected to create the statistic.

Notes

  • The query plan that generates a CREATE STATISTICS statement indicates that the query performed a full scan on all the partitions.
  • If you create another nonclustered index, it does not take longer than expected to create the statistics for columns that are not related to the nonclustered indexes.

Resolution


The issue was first fixed in the following cumulative update of SQL Server.

Cumulative update 9 for SQL Server 2008 R2 SP2

Status


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