The test script is exactly the same as before, just running on a different version.
MSDN Docs
The 2008 R2 version of the docs is here. Because the results were different, I pulled the text for both the 2012 document and the 2008 R2 document and compared them. There are no substantive differences.Here are the only differences:
2008 R2 SP2"Requires that the user owns the table or the user is a member of the sysadmin fixed server role, the db_owner fixed database role, or the db_ddladmin fixed database role."
2012 SP1 adds the highlighted section"Requires that the user has select permissions on statistics columns or the user owns the table or the user is a member of the sysadmin fixed server role, the db_owner fixed database role, or the db_ddladmin fixed database role."
Results
Microsoft SQL Server 2008 R2 (SP2) - 10.50.4000.0 (X64)
Jun 28 2012 08:36:30
Copyright (c) Microsoft Corporation
Enterprise Edition (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1)
Beginning execution loop
Batch execution completed 10000 times.
name filter_definition last_updated rows rows_sampled steps unfiltered_rows modification_counter
----------------- ----------------- ------------------- ----- ------------ ----- --------------- --------------------
name filter_definition last_updated rows rows_sampled steps unfiltered_rows modification_counter
----------------- ----------------- ------------------- ----- ------------ ----- --------------- --------------------
AK_Test1_ColGuid NULL 2012-12-20 09:10:09 10000 10000 132 10000 0
IX_Test1_Deleted NULL 2012-12-20 09:10:09 10000 10000 1 10000 0
IX_Test1_StatusId NULL 2012-12-20 09:10:09 10000 10000 1 10000 0
PK_Test1_ColId NULL 2012-12-20 09:10:09 10000 10000 3 10000 0
Update Count: 5000
name filter_definition last_updated rows rows_sampled steps unfiltered_rows modification_counter
----------------- ----------------- ------------------- ----- ------------ ----- --------------- --------------------
AK_Test1_ColGuid NULL 2012-12-20 09:10:09 10000 10000 132 10000 0
IX_Test1_Deleted NULL 2012-12-20 09:10:09 10000 10000 1 10000 5000
IX_Test1_StatusId NULL 2012-12-20 09:10:09 10000 10000 1 10000 5000
PK_Test1_ColId NULL 2012-12-20 09:10:09 10000 10000 3 10000 0
Observations
Filtered Index ResultsFiltered indexes are excluded from these results where they return NULLs in 2012.
The difference appears to be in the fact that the function returns a row in 2012 for a filtered index and does not return a row in 2008 R2 for a filtered index.
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