cck fields not updating with mysql find and replace query

this might be something simple.

i did a mysql find and replace query to update a large number of field values - update content_type_sample set content_type_sample = replace(content_type_sample,'pattern-1','pattern-2'); - query executes fine. however, when i check any of the updated nodes, that cck field still has "pattern-1" instead of "pattern-2".

do i need to update another table?

thanks!