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Re: Multiple-Table-Spanning Joins with ORs in WHERE Clause - Mailing list pgsql-performance

From Sven R. Kunze
Subject Re: Multiple-Table-Spanning Joins with ORs in WHERE Clause
Date
Msg-id c6339356-6729-fc23-d6b2-ef4c85cc0686@mail.de
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In response to Re: Multiple-Table-Spanning Joins with ORs in WHERE Clause  (Pavel Stehule <pavel.stehule@gmail.com>)
Responses Re: Multiple-Table-Spanning Joins with ORs in WHERE Clause  (Pavel Stehule <pavel.stehule@gmail.com>)
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On 29.09.2016 20:12, Pavel Stehule wrote:
> In ideal world then plan should be independent on used form. The most
> difficult is safe estimation of OR predicates. With correct estimation
> the transformation to UNION form should not be necessary I am think.

Ah, okay. That's interesting.

So how can I help here?

Regards,
Sven

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