Hi,

I want to make a custom range (and multirange type) that carries a few useful 
details. 
Looks like I may have to implement the operators, custom functions and my own 
aggregator.
Where can I find the code SQL code for anything that relates to the tstzrange 
range type?

Or would you recommend a different approach?
I essentially want to be able to aggregate multiple tstzranges - each range 
with its own importance. The aggregation would be like a a join/intersect where 
ranges with higher importance override the ones with lower importance.

Thanks!
Rares

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