Procedure plan not cached when MAX parameter is concatenated to - by Erland Sommarskog

Status : 

  Won't Fix<br /><br />
		Due to several factors the product team decided to focus its efforts on other items.<br /><br />
		A more detailed explanation for the resolution of this particular item may have been provided in the comments section.

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ID 473880 Comments
Status Closed Workarounds
Type Bug Repros 1
Opened 7/11/2009 8:00:07 AM
Access Restriction Public


You have a stored procedure which have these characteristics:
1) The procedure has a parameter of the type nvarchar(MAX), call it @p
2) There is a SELECT from a table in the procedure.
3) In the SELECT there is an expression like @p + ','
Under these cicrumstances the procedure will not be put into the procedure

This may seem like a small thing, but if you use a procedure that uses
a function like inline_split_me to crack a comma-separated list into a table,
you are exposed to this behaviour, which could be costly in a multi-user
environment, because of constant recompile.

See for the 
function inline_split_me.

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Posted by Microsoft on 4/2/2010 at 6:43 PM
I am sorry for the confussion. The bug is fixed in the next version of SQL Server but we are not going to make a fix for SQL Server 2008. The "Won't fix" was only for the SQL Server 2008 part.

Thank you,
Ciprian Clinciu
Posted by Erland Sommarskog on 3/20/2010 at 2:28 AM
You first said you have fixed it, then you close it as Won't Fix???? Could you please clarify?
Posted by Microsoft on 7/14/2009 at 11:07 AM
Thank you for bringing this to our attention. This issue has been fixed in the next release. Based on your feedback, we will triage it for SQL 2008 as well.