I've been trying to give this a whirl and it works as intended however now that I have results I am not able to perform any numeric searches on the column. For example if I use #author_book_count:5, I of course get results with all that have a 5 in the column. If I try to search #author_book_count:>=5, I get nothing. Is there some change I have to make in Calibre in order for this to allow me to search based on numbers?? Does this make sense to you?
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