Josh Berkus wrote:
Jan,
I'm still working on producing a comparision of preference SQL and the
skyline operator, more to follow soon.
The big problem with all of these is that there's no standards on
approximate queries yet. So we're reluctant to support syntax extensions
for them.
Yes, I realized it after some thought - adding nonstandard syntax isn't
so great after all. Right now I'm wondering if SQL standard window
functions can do the things I though could be doable with preferences.
Maybe I should talk to my thesis supervisor and find out if implementing
window functions would be an equally good subject...
I suppose having window functions would be a nice thing? To be honest -
I need a thesis subject and I like fiddling with Postgres. I'm trying to
find an area in which my work would be useful to the community and
enough of a standalone feature, that I can use it as the basis of my
dissertation.
Also, going through the PG development process will ensure that the
resulting code will be of topmost quality ;)
--
Jan Urbanski
GPG key ID: E583D7D2
ouden estin
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