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kotlinlang

hey, I'm looking for exposed extensions that add support for the following data types from postgres:
• ranges (`{int4,int8,num,ts,tz,date}{,multi}range`)
• postgis data types
are there any existing extensions for these, or will I have to build my own?

I've already built my own for them, but I'm just wondering if there's smth that I've missed which already exists for either of those.
if no adequate library exists for either, then I'm most likely going to open source my extension for those so others can benefit from them.