Here's a small patch to add the full suite of btree operators for tids and the corresponding btree opclass. This came up a while back on -hackers and a few people were interested in it at the time. I just had a need for it again so I added it.
I'm not sure how to allocate OIDs. I just looked for the greatest one in the various .h files and started from there. It leads to some strange discontinuities since there were existing = and <> operators.
tidops.patch2
Description: Binary data
-- greg
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