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From Danny Chan <yuzhao....@gmail.com>
Subject Re: Query hints support and example of extended SQL syntax
Date Mon, 28 Oct 2019 10:01:06 GMT
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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