I know you can use wildcards for fields like so (in the Field Calculator):
case when "column" ILIKE '%example%' then 1 else 0 end
Can you do something similar for the column headers themselves?
I ask this because I'm joining several layers (using the Joins properties) and it would make it easier for me to edit one set of filters instead of editing several filters since the column names will have to include the joined layer name.
I'm using QGIS 2.2.