Oh I see. I was working as if no match was the same as ts_rank=0.
Great advice. Thank you very much.
On Sat, Nov 16, 2019 at 2:22 PM Jeff Janes <jeff.janes@xxxxxxxxx> wrote:
On Fri, Nov 15, 2019 at 1:31 AM Javier Ayres <jayres@xxxxxxxxxxxxx> wrote:Hi everybody.I'm implementing a solution that uses PostgreSQL's full text search capabilities and I have come across a particular set of results for ts_rank that don't seem to make sense according to the documentation.While the documentation doesn't come out and say, my interpretation is that ts_rank assumes there is a match in the first place, and by implication is undefined/unspecified if there is no match.select to_tsvector('search for a text box') @@ to_tsquery('circle | lot <-> box');
?column?
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f
(1 row)Cheers,Jeff
