Re: Inefficient query plan using large in-list

  • From: S M <xt.and.r@xxxxxxxxx>
  • To: skumar.sen@xxxxxxxxx
  • Date: Thu, 16 May 2019 18:56:23 +0300

Hi Senthil,

That is well-known table functions(kokbf$-) limitations: they block such
transformations. You can google about it, there are few standard
solutions(precompute_subquery hint, laterals, etc...), but the best one is
to avoid table functions in such complex queries.

On Thu, May 16, 2019 at 6:44 PM Senthil Subramanian <skumar.sen@xxxxxxxxx>
wrote:


from   table(cast(multiset(select level from dual



-- 
Best regards,
Sayan Malakshinov
Oracle performance tuning engineer
Oracle ACE Associate
http://orasql.org

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