[HACKERS] enums and indexing

[Andrew Dunstan]

Currently we don't have a way to create a GIN index on an array of 
enums, or to use an enum field in a GIST index, so it can't be used in 
an exclusion constraint, among other things.

I'd like to work on fixing that if possible. Are there any insuperable 
barriers? If not, what do we need to do?

cheers

andrew


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