Hi, Jark. thanks. I have added a google doc.

https://docs.google.com/document/d/1hAiOfPx14VTBTOlpyxG7FA2mB1k5M31VnKYad2XpJ1I/edit?usp=sharing

Jark Wu <imj...@gmail.com> 于2023年2月21日周二 19:27写道:

> Hi Ran,
>
> I think it’s always nice to support new syntax if it’s useful for the
> users.
> From my side, your syntax table is broken. Could you share it with a
> Google doc or create a JIRA issue?
>
> Best,
> Jark
>
>
>
> > 2023年2月21日 17:51,Ran Tao <chucheng...@gmail.com> 写道:
> >
> > Hi guys. When I recently used flink sql to manage internal metadata
> > (catalog/databases/table/functions),
> > I found that many current flink sql statements do not support filtering
> or
> > some advanced syntax, however these abilities are very useful to
> end-users.
> >
> > These are some statements I have collected so far, which are supported on
> > other big data engines, such as spark, hive or presto. I wonder if we can
> > support these abilities?
> >
> > In addition, the subject of this email is named 'Auxiliary Statements'
> > mainly because the alignment of these statements will not have much
> impact
> > on the core SQL runtime.
> >
> > Support or Not
> >
> > With Advanced Syntax Or Not (in/from or like)
> >
> > show create table
> >
> > Yes
> >
> > Yes
> >
> > show tables
> >
> > Yes
> >
> > Yes
> >
> > show columns
> >
> > Yes
> >
> > Yes
> >
> > show catalogs
> >
> > Yes
> >
> > without filter
> >
> > show databases
> >
> > Yes
> >
> > without filter
> >
> > show functions
> >
> > Yes
> >
> > without filter
> >
> > show views
> >
> > Yes
> >
> > without filter
> >
> > show modules
> >
> > Yes
> >
> > without filter
> >
> > show jars
> >
> > Yes
> >
> > without filter
> >
> > show jobs
> >
> > Yes
> >
> > without filter
> >
> > We can see current flink many sql statements only support showing with
> full
> > datas, without 'FROM/IN' or 'LIKE' filter clause.
> >
> > Support or Not
> >
> > describe database
> >
> > No
> >
> > describe table
> >
> > Yes
> >
> > describe function
> >
> > No
> >
> > describe query
> >
> > No
> >
> > current flink only supports describing tables.
> >
> > Also, please let me know if there is a mistake. Looking forward to your
> > reply.
> >
> >
> > Best Regards,
> > Ran Tao
> > https://github.com/chucheng92
>
>

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