Re: Query planner question

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От Tom Lane
Тема Re: Query planner question
Дата
Msg-id 3520.1055536687@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: Query planner question  (Ernest E Vogelsinger <ernest@vogelsinger.at>)
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Ernest E Vogelsinger <ernest@vogelsinger.at> writes:
> So if I get you right the "IS NULL" predicate doesn't fit into "<op>"
> "<value>"?

Exactly.

In the last go-round on this topic, there was some discussion of
changing IS NULL from a specialized construct into an operator
(and underlying function), which'd allow it to be fit into the
index opclass abstraction.  I think it's doable, but no one's
got round to doing it yet.

            regards, tom lane

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