On 2017-10-08 11:28:09 -0400, Tom Lane wrote:
> Adam Brusselback <adambrusselback@gmail.com> writes:
> > On another note:
> >> turning ORs into UNIONs
>
> > This is another one which would be incredibly useful for me. I've had
> > to do this manually for performance reasons far too often.
>
> Well, maybe you could sign up to help review the open patch for that then:
> https://commitfest.postgresql.org/15/1001/
>
> The reason that's not in v10 is we haven't been able to convince
> ourselves whether it's 100% correct.
Unfortunately it won't help in this specific case (no support for UNION,
just UNION ALL), but I thought it might be interesting to reference
https://medium.com/@uwdb/introducing-cosette-527898504bd6
here.
Greetings,
Andres Freund
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