Hi Daisy

Thank you for the proposal.
I like it.
It was not discussed within this FLIP.

I'm not sure about the procedure in such cases (since voting finished).
Maybe a separate discussion thread makes sense.

However I think it could be done as well if there is no objection.



On Fri, Nov 26, 2021 at 2:22 PM Daisy Tsang <da...@ververica.com> wrote:

> Hi,
>
> would a command that shows the available table source/sink factories be
> implemented?  Something that can show that a factory is loaded, etc.
>
> - Daisy
>
> On Thu, Nov 4, 2021 at 8:30 AM Sergey Nuyanzin <snuyan...@gmail.com>
> wrote:
>
> > I've started a [VOTE] thread for this FLIP
> > https://lists.apache.org/thread/f14jjhrscrdv7h6zw6h1k72nfx232qxs
> >
> > On Wed, Nov 3, 2021 at 2:59 PM Sergey Nuyanzin <snuyan...@gmail.com>
> > wrote:
> >
> > > Hi Timo,
> > >
> > > I completely agree it would be great if we can propagate Calcite parser
> > > config in
> > > the way you have described. As you mentioned we could discuss this
> > > when it comes to the implementation.
> > >
> > > Meanwhile it looks like I can start voting (please correct me if I'm
> > > wrong).
> > > I will start it a bit later today
> > >
> > > On Wed, Nov 3, 2021 at 1:37 PM Timo Walther <twal...@apache.org>
> wrote:
> > >
> > >> Hi Sergey,
> > >>
> > >> thanks for your explanation.
> > >>
> > >> Regarding keywords and other info: We should receive the information
> > >> from the Flink SQL parser directly. We have added a couple of new
> > >> keywords such as WATERMARK or MATCH_RECOGNIZE clauses. SQL92 would not
> > >> help a user understand why a column name needs to be escaped. And in
> > >> general, we should not have duplicate code. Let's discuss this when it
> > >> comes to the implementation. I'm sure we can propagate the Calcite
> > >> parser config into a nice POJO that the CLI can receive from the
> > Executor.
> > >>
> > >> Regards,
> > >> Timo
> > >>
> > >>
> > >> On 03.11.21 11:12, Sergey Nuyanzin wrote:
> > >> > Hi 李宇彬,
> > >> >
> > >> > I think you are right. Thank you very much for the idea.
> > >> > I came across MySQL[1] and PostgreSQL[2] prompts and also
> > >> > found several interesting features like control symbols to change
> > style,
> > >> > showing current property value and different datetime formats.
> > >> >
> > >> > I have added your proposals and my findings to FLIP's page, please
> > have
> > >> a
> > >> > look.
> > >> >
> > >> > [1] https://dev.mysql.com/doc/refman/8.0/en/mysql-commands.html
> > >> > [2]
> > https://www.postgresql.org/docs/14/app-psql.html#APP-PSQL-PROMPTING
> > >> >
> > >> > On Wed, Nov 3, 2021 at 2:31 AM 李宇彬 <lixin58...@163.com> wrote:
> > >> >
> > >> >> Hi Sergey
> > >> >>
> > >> >>
> > >> >> It is a very useful improvement I'm looking forward to. in
> addition,
> > I
> > >> >> think prompt
> > >> >> can play a greater role.
> > >> >>
> > >> >>
> > >> >> To help users call commands in expected context, we can get session
> > >> >> context
> > >> >> (current catalog/db/time) from cli prompt like MySQL,
> > >> >> please see details as below:
> > >> >>
> > >> >>
> > >> >> https://issues.apache.org/jira/browse/FLINK-24730
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >> On 11/2/2021 21:09,Sergey Nuyanzin<snuyan...@gmail.com> wrote:
> > >> >> Hi Timo
> > >> >>
> > >> >> Thank you for your questions.
> > >> >>
> > >> >> I will answer your questions here and update FLIP's page as well
> > >> >>
> > >> >> For example, who is responsible for parsing comments? I guess the
> SQL
> > >> >> Client and not the Flink SQL parser will take care of this?
> > >> >> Yes, you are right. SQL Client is responsible for parsing here.
> > >> >> However it does not validate sql, it only validates that comments,
> > >> brackets
> > >> >> and quotes are closed and the statement ends with a semicolon.
> > >> >> Also under the hood jline's splits input into words and works with
> > >> them.
> > >> >> Within a custom parser it is possible to specify what should be
> > >> considered
> > >> >> as a word or not considered at all (e.g. it is possible to remove
> > >> >> all line and block comments before submitting a query,
> > >> >> probably as another non default option)... During parsing it marks
> > >> >> what is a comment, a keyword, a quoted string etc. based on rules
> > >> >> defined in SQL Client parser.
> > >> >> SQL Client highlighter could use the result of this marking to
> > >> highlight.
> > >> >> Completer could use it to do completion, e.g. if based on parser's
> > >> marks
> > >> >> completer knows that a cursor is inside a comment or a string
> > >> >> then no need to complete anything.
> > >> >>
> > >> >> Also, will the prompt hints for `'>` and ``>` support escaping?
> This
> > >> can
> > >> >> be a tricky topic sometimes.
> > >> >> Ideally yes, I played with lots of tricky cases and it behaves ok.
> > >> >> At least I do not see limitations here.
> > >> >> In case you do please share...
> > >> >>
> > >> >> In general, how do we deal with different SQL dialects in the SQL
> > >> >> Client. For example, it possible to `table.sql-dialect` to `HIVE`.
> > Will
> > >> >> all highlighting, auto-complete and prompt hints be disabled in
> this
> > >> case?
> > >> >> It could be turned off for the beginning.
> > >> >> To make it supported across different dialects it is required to
> have
> > >> such
> > >> >> info:
> > >> >> 1) Set of keywords
> > >> >> 2) Quote sign
> > >> >> 3) SQL identifier quote
> > >> >> 4) Start of a line comment
> > >> >> 5) Start and end of a block comment
> > >> >> 6) Start and end of hints
> > >> >> I see at least 2 ways:
> > >> >> 1. provide such api
> > >> >> 2. create this mapping in SQL Client and use it based on current
> > >> dialect
> > >> >> Then it will be easy to support it for a new dialect
> > >> >> Here the only questionable thing is keywords.
> > >> >> Currently I made it pretty straightforward:
> > >> >> if a word not inside quoted string, not inside a comment or a hint
> > >> >> and matches anything from
> > >> >> SQL92 (
> > >> >>
> > >> >>
> > >>
> >
> *org.apache.calcite.sql.parser.SqlAbstractParserImpl#getSql92ReservedWords*)),
> > >> >>
> > >> >> then it will be highlighted as a keyword.
> > >> >>
> > >> >> On Tue, Nov 2, 2021 at 12:09 PM Timo Walther <twal...@apache.org>
> > >> wrote:
> > >> >>
> > >> >> Hi Sergey,
> > >> >>
> > >> >> thanks for this nice demo video. It looks very nice and makes the
> SQL
> > >> >> Client an even more useful tool.
> > >> >>
> > >> >> What I miss a bit in the FLIP is the implementation details.
> > >> >>
> > >> >> For example, who is responsible for parsing comments? I guess the
> SQL
> > >> >> Client and not the Flink SQL parser will take care of this?
> > >> >>
> > >> >> Also, will the prompt hints for `'>` and ``>` support escaping?
> This
> > >> can
> > >> >> be a tricky topic sometimes.
> > >> >>
> > >> >> In general, how do we deal with different SQL dialects in the SQL
> > >> >> Client. For example, it possible to `table.sql-dialect` to `HIVE`.
> > Will
> > >> >> all highlighting, auto-complete and prompt hints be disabled in
> this
> > >> case?
> > >> >>
> > >> >>
> > >> >> Looking forward to have this in Flink.
> > >> >>
> > >> >> Thanks,
> > >> >> Timo
> > >> >>
> > >> >>
> > >> >>
> > >> >> On 02.11.21 08:26, Till Rohrmann wrote:
> > >> >> Hi Sergey,
> > >> >>
> > >> >> I think that after answering/resolving Jark's comments, you can
> > start a
> > >> >> [VOTE] thread for this FLIP. The process is described here [1].
> Once
> > >> the
> > >> >> FLIP has been accepted, which it should, given the positive
> feedback,
> > >> you
> > >> >> can start working on it by creating the corresponding JIRA tickets
> > and
> > >> >> then
> > >> >> start coding. I hope that there will be a committer familiar with
> the
> > >> SQL
> > >> >> client that can help you with the code review and merging of the
> > code.
> > >> >> But
> > >> >> again, given the positive feedback, I think there will be a
> > volunteer.
> > >> >>
> > >> >> [1]
> > >> >>
> > >> >>
> > >> >>
> > >>
> >
> https://cwiki.apache.org/confluence/display/FLINK/Flink+Improvement+Proposals
> > >> >>
> > >> >> Cheers,
> > >> >> Till
> > >> >>
> > >> >> On Tue, Nov 2, 2021 at 4:25 AM Jark Wu <imj...@gmail.com> wrote:
> > >> >>
> > >> >> Awesome demo, looking forward to these features!
> > >> >>
> > >> >> I only have a minor comment: could we provide a config to
> > >> enable/disable
> > >> >> the prompt values?
> > >> >> We can also discuss whether we can enable all the new features by
> > >> >> default
> > >> >> to give them more exposure.
> > >> >>
> > >> >> Best,
> > >> >> Jark
> > >> >>
> > >> >> On Tue, 2 Nov 2021 at 10:48, JING ZHANG <beyond1...@gmail.com>
> > wrote:
> > >> >>
> > >> >> Amazing improvements and impressive video.
> > >> >> Big +1.
> > >> >>
> > >> >> Best,
> > >> >> JING ZHANG
> > >> >>
> > >> >> Kurt Young <ykt...@gmail.com> 于2021年11月2日周二 上午9:37写道:
> > >> >>
> > >> >> Really cool improvements @Sergey. Can't wait to see it happen.
> > >> >>
> > >> >> Best,
> > >> >> Kurt
> > >> >>
> > >> >>
> > >> >> On Tue, Nov 2, 2021 at 1:56 AM Martijn Visser <
> mart...@ververica.com
> > >
> > >> >> wrote:
> > >> >>
> > >> >> Hi Sergey,
> > >> >>
> > >> >> I guess you've just set a new standard ;-) I agree with Ingo, these
> > >> >> improvements look really good!
> > >> >>
> > >> >> Best regards,
> > >> >>
> > >> >> Martijn
> > >> >>
> > >> >> On Mon, 1 Nov 2021 at 18:23, Ingo Bürk <i...@ververica.com> wrote:
> > >> >>
> > >> >> Hi Sergey,
> > >> >>
> > >> >> I think those improvements look absolutely amazing. Thanks for the
> > >> >> little
> > >> >> video!
> > >> >>
> > >> >>
> > >> >> Best
> > >> >> Ingo
> > >> >>
> > >> >> On Mon, Nov 1, 2021, 17:15 Sergey Nuyanzin <snuyan...@gmail.com>
> > >> >> wrote:
> > >> >>
> > >> >> Thanks for the feedback Till.
> > >> >>
> > >> >> Martijn, I have created a short demo showing some of the features
> > >> >> mentioned
> > >> >> in FLIP.
> > >> >> It is available at https://asciinema.org/a/446247?speed=3.0
> > >> >> Could you please tell if it is what you are expecting or not?
> > >> >>
> > >> >> On Fri, Oct 29, 2021 at 4:59 PM Till Rohrmann <
> > >> >> trohrm...@apache.org>
> > >> >> wrote:
> > >> >>
> > >> >> Thanks for creating this FLIP Sergey. I think what you propose
> > >> >> sounds
> > >> >> like
> > >> >> very good improvements for the SQL client. This should make the
> > >> >> client
> > >> >> a
> > >> >> lot more ergonomic :-)
> > >> >>
> > >> >> Cheers,
> > >> >> Till
> > >> >>
> > >> >> On Fri, Oct 29, 2021 at 11:26 AM Sergey Nuyanzin <
> > >> >> snuyan...@gmail.com>
> > >> >> wrote:
> > >> >>
> > >> >> Hi Martijn,
> > >> >>
> > >> >> Thank you for your suggestion with POC.
> > >> >> Yes I will do that and come back to this thread probably
> > >> >> after
> > >> >> the
> > >> >> weekend
> > >> >>
> > >> >> On Thu, Oct 28, 2021 at 4:38 PM Martijn Visser <
> > >> >> mart...@ververica.com>
> > >> >> wrote:
> > >> >>
> > >> >> Hi Sergey,
> > >> >>
> > >> >> Thanks for taking the initiative to create a FLIP and
> > >> >> propose
> > >> >> improvements
> > >> >> on the SQL client. All usability improvements on the SQL
> > >> >> client
> > >> >> are
> > >> >> highly
> > >> >> appreciated, especially for new users of Flink. Multi-line
> > >> >> support
> > >> >> is
> > >> >> definitely one of those things I've run into myself.
> > >> >>
> > >> >> I do think it would be quite nice if there would be some
> > >> >> kind
> > >> >> of
> > >> >> POC
> > >> >> which
> > >> >> could show (some of) the proposed improvements. Is that
> > >> >> something
> > >> >> that
> > >> >> might be easily feasible?
> > >> >>
> > >> >> Best regards,
> > >> >>
> > >> >> Martijn
> > >> >>
> > >> >> On Thu, 28 Oct 2021 at 11:02, Sergey Nuyanzin <
> > >> >> snuyan...@gmail.com
> > >> >>
> > >> >> wrote:
> > >> >>
> > >> >> Hi all,
> > >> >>
> > >> >> I want to start a discussion about FLIP-189: SQL Client
> > >> >> Usability
> > >> >> Improvements.
> > >> >>
> > >> >> The main changes in this FLIP:
> > >> >>
> > >> >> - Flink sql client parser improvements so
> > >> >> that sql client does not ask for ; inside a quoted
> > >> >> string
> > >> >> or a
> > >> >> comment
> > >> >> - use prompt to show what sql client is waiting for
> > >> >> - introduce syntax highlighting
> > >> >> - improve completion
> > >> >>
> > >> >> For more detailed changes, please refer to FLIP-189[1].
> > >> >>
> > >> >> [1]
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >>
> >
> https://cwiki.apache.org/confluence/display/FLINK/FLIP-189%3A+SQL+Client+Usability+Improvements
> > >> >>
> > >> >>
> > >> >>
> > >> >> Look forward to your feedback.
> > >> >>
> > >> >> --
> > >> >> Best regards,
> > >> >> Sergey
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >> --
> > >> >> Best regards,
> > >> >> Sergey
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >> --
> > >> >> Best regards,
> > >> >> Sergey
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >> --
> > >> >> Best regards,
> > >> >> Sergey
> > >> >>
> > >> >
> > >> >
> > >>
> > >>
> > >
> > > --
> > > Best regards,
> > > Sergey
> > >
> >
> >
> > --
> > Best regards,
> > Sergey
> >
>


-- 
Best regards,
Sergey

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