Tom Lane wrote:
Hans-Juergen Schoenig -- PostgreSQL <postg...@cybertec.at> writes:
what we basically expected here is that Postgres will scan the table using the index to give us the cheapest products containing the words we are looking for. i am totally surprised to see that we have to fetch all products given the words, sort and then do the limit.

I don't know why you'd find that surprising.  GIST indexes have no
support for ordering.

                        regards, tom lane


ok, i thought it would be something gist specific i was not aware of.
the golden question now is: i am looking for the cheapest products given a certain text in an insane amount of data. how to do it? other quals which could narrow down the amount of data would not help.

i cannot see an option with regular "weapons" ...
maybe you can an idea how to fix core to make it work? maybe there is a mechanism we could need.
we really have to make this work - no matter what it takes.
we are willing to put effort into that.

   many thanks,

      hans

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