>>>>> "Tom" == Tom Lane <[EMAIL PROTECTED]> writes:
Tom> For starters, read the previous discussions of this in the
Tom> archives.
Tom> Two questions you should have answers to before starting to
Tom> implement, rather than after, are how to deal with locking
Tom> considerations and what will be the implications of giving up
Tom> the property that indexscans deliver sorted output.
I don't know about the former, but as to the latter, we should
certainly have the ability for both output sorted by key and
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