Re: Alias in WHERE clause

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> I would like to be able to say:
>
> SELECT url,score_a(text, CAST('term' AS TEXT)) AS score FROM articles
> WHERE score > 0
> ORDER BY score DESC;
>
> This returns: ERROR:  Attribute 'score' not found.

We just don't support aliases in WHERE, as you suggest.  I see your
problem if score_a is complicated.  The issue is that the target list is
not evaluated until _after_ the WHERE clause.

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