In 1.3.955, released last month, I quietly added a new :name-fn option which was really intended purely to support XTDB's SQL dialect (which allowed / in column names). XTDB has removed that feature (because it's all sorts of problematic for both HoneySQL and next.jdbc, given the widely baked-in assumption of :table/column-name in both of those!).
Since it adds a mild performance overhead as well as otherwise unneeded complexity, I plan to remove it in the upcoming version.
I'm mentioning it here because it wasn't marked as experimental, so it would technically be a breaking change... Is anyone already using this newly-added option? 🙂