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5244987673819126

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5244987673819126 Commented on

Using the Built-In and Custom Ranking Algorithms of PostgreSQL for Full-Text Searches

In this article, we will explore how you can refine ranking algorithms for PostgreSQL through using tsvector or a multi-dimensional array.

Hello, I am trying to solve the issue when I need more weight levels than just 4 and I found your article. Unfortunately I am not that experienced in the SQL, could you please explain a little bit more the first method with ts_vector? I mean I do not understand how to put everything together. Let's say I have tsquery which I want to rank. I call the cat_ranking(tsquery), where did you get the 'contains_element' please?
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