FIX: Bad plan error occurs and query fails when you use Adaptive Join to run a query in SQL Server 2017

Applies to: SQL Server 2017 DeveloperSQL Server 2017 EnterpriseSQL Server 2017 Enterprise Core

Symptoms


When you run a query that uses Adaptive join feature in SQL Server 2017, you will notice that the query fails to run. Additionally, you may receive error messages that resembles the following: 

"Bad plan error"
Msg 596, Level 21, State 1, Line LineNumber
Cannot continue the execution because the session is in the kill state.
Msg 0, Level 20, State 0, Line LineNumber
A severe error occurred on the current command. The results, if any, should be discarded.

Resolution


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

       Cumulative Update 11 for SQL Server 2017

Workaround


As a workaround for this issue, you may disable the Adaptive Join feature for the query.

Status


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

References


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