Consider the following scenario:
You have incremental statistics that are built on partitioned tables in SQL Server 2017.
You merge or split a partition.
The statistics are automatically updated.
In this scenario, the incremental statistics tree may become corrupted, and you notice that an access violation occurs.
The issue is fixed in the following cumulative update 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:
Learn about the terminology that Microsoft uses to describe software updates.