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From Danny Chan <yuzhao....@gmail.com>
Subject Re: Query hints support and example of extended SQL syntax
Date Tue, 29 Oct 2019 06:14:59 GMT
I’m trying to push it into release-1.22 (next release), wait for our good news !

Best,
Danny Chan
在 2019年10月29日 +0800 PM2:11,Vladimir Ozerov <ppozerov@gmail.com>,写道:
> Hi Danny,
>
> I looked at your design proposal and it looks great. All common hint cases
> that we may possibly need are covered there. Thank you.
>
> I hope the community will release it soon since hints are essential for
> production-grade systems. From what I see in other projects, such as Flink
> or Drill, they have to rely on properties set somewhere else
> (configuration, session), to achieve the same goals, which is not
> user-friendly.
>
> Regards,
> Vladimir.
>
> пн, 28 окт. 2019 г. в 13:26, Danny Chan <yuzhao.cyz@gmail.com>:
>
> > Here is the discussion mailing list [1]
> >
> > [1]
> > https://ponymail-vm.apache.org/_GUI_/thread.html/db3799d70232ec85e294bb8885431a3f5c88bb28f4fd3337368b1480@%3Cdev.calcite.apache.org%3E
> >
> > Best,
> > Danny Chan
> > 在 2019年10月28日 +0800 PM5:09,Vladimir Ozerov <ppozerov@gmail.com>,写道:
> > > Hi colleagues,
> > >
> > > I am working on Calcite integration with Hazelcast. One particular
> > problem
> > > is that we need query hints. I found a couple of tickets [1] [2], and it
> > > seems that hints are not readily available at the moment. So I have two
> > > questions:
> > > 1) Is it true that there is no built-in way to provide query hints at the
> > > moment? Are there any plans to finally add hints to the engine?
> > > 2) As a possible solution, I am considering extending SELECT syntax with
> > a
> > > custom parser extension. Do you know any example of extended SELECT
> > syntax
> > > in existing Calcite integrations? I found an example of SqlInsert command
> > > extension in Apache Flink, but maybe somebody already extended SELECT as
> > > well?
> > >
> > > Thank you,
> > > Vladimir.
> > >
> > > [1] https://issues.apache.org/jira/browse/CALCITE-482
> > > [2] https://issues.apache.org/jira/browse/CALCITE-495
> >

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