I'd like to try an exotic postgres SQL query but your question does not contain database specific detail (I mean, a JSONB column, containing a 'hash'? what does that mean?)

If requirements make it possible to use postgresql JSONB indexing it can be extremely fast.

In reply to Re: Faster of two options for finding keywords in a database by erix
in thread Faster of two options for finding keywords in a database by cormanaz

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