Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).
Merge publications with parameterized filters use the SUSER_SNAME() function and/or the HOST_NAME() function to filter data. The function is specified in the New Publication Wizard or the Publication Properties dialog box.
By default, the HOST_NAME() function returns the name of the computer connecting to the Publisher. When using parameterized filters, it is common to override this value by supplying a value on this page of the wizard. The HOST_NAME() function then returns the value you specify rather than the name of the computer. For more information, see the "Overriding the HOST_NAME() Value" section of Parameterized Row Filters.
If you override HOST_NAME(), all calls to the HOST_NAME() function will return the value you specify. Ensure that other applications are not depending on HOST_NAME() returning the computer name.