KB4531010 - FIX: CREATE INDEX with new CE reads the partition table and results in huge row count higher than the total table row count in SQL Server

Symptoms

Assume that you have partitioned tables in Microsoft SQL Server. When you use CREATE INDEX with new Cardinality Estimator (CE) on the partitioned table, you notice that CREATE INDEX command reads huge rows which are multiple times than the total table row count with more CPU and memory resource cost.

Status

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

Resolution

This issue is fixed in the following cumulative updates for SQL Server:

About cumulative updates for SQL Server:

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:

References

Learn about the terminology that Microsoft uses to describe software updates.

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