Hi Amit,
Thanks for your answer.
My issue is that I still need a ranking like the similarity when comparing trigrams.
I'm working on a similarity search, which determindes similiar sentences from my table.
The usual similarity search with Trigrams and a gist bzw. gin index is to slow with my set of rows.
So I've built an Fixed Query Array. I took some sentences as pivots and calculated the distance between them and all my sentences.
Now I can search for similiar sentences by calculating their distance to my pivots and comparing them with the distances I already got.
I noticed that it's a good way to use trigrams as metric distance function.
So the issue is that I have to take certain trigrams as pivots and of cource I need to store an exact ranking when comparing.
Your method detect the rows which includes all of the trigrams you are searching for, but I still need a ranking...
something like SELECT similarity('How are your', "{" ho","how","are","re "," hi","wha","hat","at "," a"}"::trgm);
I hope you have an idea
Janek Sendrowski
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