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Re: Hints support


We’ve discussed hints before. There may even be a JIRA case. I’d like to see a concrete proposal, not just for syntax, but how the hints would make their way through relational algebra.

Julian

> On Oct 10, 2018, at 07:57, Arina Yelchiyeva <arina.yelchiyeva@xxxxxxxxx> wrote:
> 
> Hi all,
> 
> currently Calcite does not support hints. Since usually hints are expressed
> as multi-line comment after SELECT keyword followed by the plus sign [1],
> Calcite ignores them as all others comments.It can be useful if Calcite
> will provide functionality to store hints and allow source system to use
> them during planning / execution time.
> 
> Any thoughts?
> 
> [1] https://docs.oracle.com/cd/B12037_01/server.101/b10752/hintsref.htm
> 
> Kind regards,
> Arina