Hi Yubin, Thanks for your quickly response!
It would be better to support comments just like create `database` and `table` with comment. That is, add `String getComment();` to the current `Catalog` interface. WDYT? Best, Lincoln Lee Yubin Li <lyb5...@gmail.com> 于2024年3月19日周二 21:44写道： > Hi Lincoln, > > Good catch. Thanks for your suggestions. > > I found that the creation statements of database and table both > support specifying "if not exists". For the sake of syntactic > consistency and user practicality, We could introduce the '[if not > exists]' clause to the 'create catalog' statement. > > As for the introduction of the `catalog comment` feature, it may > involve changes to the Catalog structure, which can be left for future > discussion. > > WDYT? Looking forward to your feedback :) > > Best, > Yubin > > On Tue, Mar 19, 2024 at 9:06 PM Lincoln Lee <lincoln.8...@gmail.com> > wrote: > > > > Hi Yubin, > > > > Big +1 for completing the catalog api! > > There's a minor addition[1] which does not affect the vote could also be > > considered. > > > > [1] https://issues.apache.org/jira/browse/FLINK-21665 > > > > > > Best, > > Lincoln Lee > > > > > > Yubin Li <lyb5...@gmail.com> 于2024年3月18日周一 17:44写道： > > > > > Hi Jark, > > > > > > Thanks for your response, I have updated FLIP-436: Introduce > > > Catalog-related Syntax [1] as you suggested. > > > > > > If there are no more comments within 24 hours, I will start a vote for > > > this, thanks :) > > > > > > Best, > > > Yubin > > > > > > [1] > > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-436%3A+Introduce+Catalog-related+Syntax > > > > > > On Mon, Mar 18, 2024 at 4:39 PM Jark Wu <imj...@gmail.com> wrote: > > > > > > > > Hi Yubin, > > > > > > > > Thanks for the quick response. The suggestion sounds good to me! > > > > > > > > Best, > > > > Jark > > > > > > > > On Mon, 18 Mar 2024 at 13:06, Yubin Li <lyb5...@gmail.com> wrote: > > > > > > > > > Hi Jark, > > > > > > > > > > Good pointing! Thanks for your reply, there are some details to > align > > > :) > > > > > > > > > > 1. I think the purpose of DESCRIBE CATALOG is to display metadata > > > > > > information including catalog name, > > > > > > catalog comment (may be introduced in the future), catalog type, > and > > > > > > catalog properties (for example [1]) > > > > > > > > > > Adopting { DESC | DESCRIBE } CATALOG [ EXTENDED ] xx as formal > syntax, > > > > > Producing rich and compatible results for future needs is very > > > important. > > > > > When > > > > > specifying "extended" in the syntax, it will output the complete > > > > > information including > > > > > properties.The complete output example is as follows: > > > > > > > > > > > > > > +---------------------------------+---------------------------------------------------+ > > > > > | catalog_description_item | catalog_description_value > > > | > > > > > > > > > > > > > > +---------------------------------+---------------------------------------------------+ > > > > > | Name | cat1 > > > > > | > > > > > | Type | > generic_in_memory > > > > > | > > > > > | Comment | > > > > > | > > > > > | Properties | ((k1,v1), > (k2,v2)) > > > > > | > > > > > > > > > > > > > > +---------------------------------+---------------------------------------------------+ > > > > > > > > > > 2. Could you add support for ALTER CATALOG xxx UNSET ('mykey')? > This is > > > > > > also very useful in ALTER TABLE. > > > > > > > > > > I found that there is already an ALTER TABLE xxx RESET ('mykey') > > > syntax [1] > > > > > now, > > > > > which will reset the myKey attribute of a certain table to the > default > > > > > value. For catalogs, > > > > > it might be better to use ALTER CATALOG xxx RESET ('mykey') for the > > > sake of > > > > > design > > > > > consistency. > > > > > > > > > > WDYT? Looking forward to your suggestions. > > > > > > > > > > Best, > > > > > Yubin > > > > > > > > > > [1] > > > > > > > > > > > > > > https://nightlies.apache.org/flink/flink-docs-master/docs/dev/table/sql/alter/#reset > > > > > > > > > > > > > > > On Mon, Mar 18, 2024 at 11:49 AM Jark Wu <imj...@gmail.com> wrote: > > > > > > > > > > > Hi Yubin, > > > > > > > > > > > > Thanks for updating the FLIP. The updated version looks good in > > > general. > > > > > > I only have 2 minor comments. > > > > > > > > > > > > 1. I think the purpose of DESCRIBE CATALOG is to display metadata > > > > > > information including catalog name, > > > > > > catalog comment (may be introduced in the future), catalog type, > and > > > > > > catalog properties (for example [1]). > > > > > > Expanding all properties may limit this syntax to include more > > > metadata > > > > > > information in the future. > > > > > > > > > > > > 2. Could you add support for ALTER CATALOG xxx UNSET ('mykey')? > This > > > is > > > > > > also very useful in ALTER TABLE. > > > > > > > > > > > > Best, > > > > > > Jark > > > > > > > > > > > > [1]: > > > > > > > > > > > > > > > > > > > > > https://docs.databricks.com/en/sql/language-manual/sql-ref-syntax-aux-describe-schema.html > > > > > > > > > > > > > > > > > > > > > > > > On Fri, 15 Mar 2024 at 12:06, Yubin Li <lyb5...@gmail.com> > wrote: > > > > > > > > > > > > > Hi Xuyang, > > > > > > > > > > > > > > Thank you for pointing this out, The parser part of `describe > > > catalog` > > > > > > > syntax > > > > > > > has indeed been implemented in FLIP-69, and it is not actually > > > > > available. > > > > > > > we can complete the syntax in this FLIP [1]. I have updated > the > > > doc :) > > > > > > > > > > > > > > Best, > > > > > > > Yubin > > > > > > > > > > > > > > [1] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-436%3A+Introduce+Catalog-related+Syntax > > > > > > > > > > > > > > On Fri, Mar 15, 2024 at 10:12 AM Xuyang <xyzhong...@163.com> > > > wrote: > > > > > > > > > > > > > > > Hi, Yubin. Big +1 for this Flip. I just left one minor > comment > > > > > > following. > > > > > > > > > > > > > > > > > > > > > > > > I found that although flink has not supported syntax > 'DESCRIBE > > > > > CATALOG > > > > > > > > catalog_name' currently, it was already > > > > > > > > discussed in flip-69[1], do we need to restart discussing it? > > > > > > > > I don't have a particular preference regarding the restart > > > > > discussion. > > > > > > It > > > > > > > > seems that there is no difference on this syntax > > > > > > > > in FLIP-436, so maybe it would be best to refer back to > FLIP-69 > > > in > > > > > this > > > > > > > > FLIP. WDYT? > > > > > > > > > > > > > > > > > > > > > > > > [1] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-69%3A+Flink+SQL+DDL+Enhancement > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > > > > > > > > > Best！ > > > > > > > > Xuyang > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > At 2024-03-15 02:49:59, "Yubin Li" <lyb5...@gmail.com> > wrote: > > > > > > > > >Hi folks, > > > > > > > > > > > > > > > > > >Thank you all for your input, it really makes sense to > introduce > > > > > > missing > > > > > > > > >catalog-related SQL syntaxes under this FLIP, and I have > > > changed the > > > > > > > > >title of doc to "FLIP-436: Introduce Catalog-related > Syntax". > > > > > > > > > > > > > > > > > >After comprehensive consideration, the following syntaxes > > > should be > > > > > > > > >introduced, more suggestions are welcome :) > > > > > > > > > > > > > > > > > >> 1. SHOW CREATE CATALOG catalog_name > > > > > > > > >> 2. DESCRIBE/DESC CATALOG catalog_name > > > > > > > > >> 3. ALTER CATALOG catalog_name SET (key1=val1, key2=val2, > ...) > > > > > > > > > > > > > > > > > >Regarding the `alter catalog` syntax format, I refer to the > > > current > > > > > > > design > > > > > > > > >of `alter database`. > > > > > > > > > > > > > > > > > >Given that CatalogManager already provides catalog > operations > > > such > > > > > as > > > > > > > > >create, get, and unregister, and in order to facilitate > future > > > > > > > > >implementation > > > > > > > > >of audit tracking, I propose to introduce the alterCatalog() > > > > > function > > > > > > in > > > > > > > > >CatalogManager. WDYT? > > > > > > > > > > > > > > > > > >Please see details in FLIP doc [1] . > > > > > > > > > > > > > > > > > >Best, > > > > > > > > >Yubin > > > > > > > > > > > > > > > > > >[1] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-436%3A+Introduce+Catalog-related+Syntax > > > > > > > > > > > > > > > > > > > > > > > > > > >On Thu, Mar 14, 2024 at 11:07 PM Leonard Xu < > xbjt...@gmail.com> > > > > > > wrote: > > > > > > > > > > > > > > > > > >> Hi Yubin, > > > > > > > > >> > > > > > > > > >> Thanks for driving the discussion, generally +1 for the > FLIP, > > > big > > > > > +1 > > > > > > > to > > > > > > > > >> finalize the whole catalog syntax story in one FLIP, > > > > > > > > >> thus I want to jump into the discussion again after you > > > completed > > > > > > the > > > > > > > > >> whole catalog syntax story. > > > > > > > > >> > > > > > > > > >> Best, > > > > > > > > >> Leonard > > > > > > > > >> > > > > > > > > >> > > > > > > > > >> > > > > > > > > >> > 2024年3月14日 下午8:39，Roc Marshal <flin...@126.com> 写道： > > > > > > > > >> > > > > > > > > > >> > Hi, Yubin > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > Thank you for initiating this discussion! +1 for the > > > proposal. > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > Best, > > > > > > > > >> > Yuepeng Pan > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > At 2024-03-14 18:57:35, "Ferenc Csaky" > > > > > <ferenc.cs...@pm.me.INVALID > > > > > > > > > > > > > > > >> wrote: > > > > > > > > >> >> Hi Yubin, > > > > > > > > >> >> > > > > > > > > >> >> Thank you for initiating this discussion! +1 for the > > > proposal. > > > > > > > > >> >> > > > > > > > > >> >> I also think it makes sense to group the missing > catalog > > > > > related > > > > > > > > >> >> SQL syntaxes under this FLIP. > > > > > > > > >> >> > > > > > > > > >> >> Looking forward to these features! > > > > > > > > >> >> > > > > > > > > >> >> Best, > > > > > > > > >> >> Ferenc > > > > > > > > >> >> > > > > > > > > >> >> > > > > > > > > >> >> > > > > > > > > >> >> > > > > > > > > >> >> On Thursday, March 14th, 2024 at 08:31, Jane Chan < > > > > > > > > >> qingyue....@gmail.com> wrote: > > > > > > > > >> >> > > > > > > > > >> >>> > > > > > > > > >> >>> > > > > > > > > >> >>> Hi Yubin, > > > > > > > > >> >>> > > > > > > > > >> >>> Thanks for leading the discussion. I'm +1 for the > FLIP. > > > > > > > > >> >>> > > > > > > > > >> >>> As Jark said, it's a good opportunity to enhance the > > > syntax > > > > > for > > > > > > > > Catalog > > > > > > > > >> >>> from a more comprehensive perspective. So, I suggest > > > expanding > > > > > > the > > > > > > > > >> scope of > > > > > > > > >> >>> this FLIP by focusing on the mechanism instead of one > use > > > case > > > > > > to > > > > > > > > >> enhance > > > > > > > > >> >>> the overall functionality. WDYT? > > > > > > > > >> >>> > > > > > > > > >> >>> Best, > > > > > > > > >> >>> Jane > > > > > > > > >> >>> > > > > > > > > >> >>> On Thu, Mar 14, 2024 at 11:38 AM Hang Ruan > > > > > > ruanhang1...@gmail.com > > > > > > > > >> wrote: > > > > > > > > >> >>> > > > > > > > > >> >>>> Hi, Yubin. > > > > > > > > >> >>>> > > > > > > > > >> >>>> Thanks for the FLIP. +1 for it. > > > > > > > > >> >>>> > > > > > > > > >> >>>> Best, > > > > > > > > >> >>>> Hang > > > > > > > > >> >>>> > > > > > > > > >> >>>> Yubin Li lyb5...@gmail.com 于2024年3月14日周四 10:15写道： > > > > > > > > >> >>>> > > > > > > > > >> >>>>> Hi Jingsong, Feng, and Jeyhun > > > > > > > > >> >>>>> > > > > > > > > >> >>>>> Thanks for your support and feedback! > > > > > > > > >> >>>>> > > > > > > > > >> >>>>>> However, could we add a new method > > > `getCatalogDescriptor()` > > > > > > to > > > > > > > > >> >>>>>> CatalogManager instead of directly exposing > > > CatalogStore? > > > > > > > > >> >>>>> > > > > > > > > >> >>>>> Good point, Besides the audit tracking issue, The > > > proposed > > > > > > > feature > > > > > > > > >> >>>>> only requires `getCatalogDescriptor()` function. > > > Exposing > > > > > > > > components > > > > > > > > >> >>>>> with excessive functionality will bring unnecessary > > > risks, I > > > > > > > have > > > > > > > > >> made > > > > > > > > >> >>>>> modifications in the FLIP doc [1]. Thank Feng :) > > > > > > > > >> >>>>> > > > > > > > > >> >>>>>> Showing the SQL parser implementation in the FLIP > for > > > the > > > > > SQL > > > > > > > > syntax > > > > > > > > >> >>>>>> might be a bit confusing. Also, the formal > definition > > > is > > > > > > > missing > > > > > > > > for > > > > > > > > >> >>>>>> this SQL clause. > > > > > > > > >> >>>>> > > > > > > > > >> >>>>> Thank Jeyhun for pointing it out :) I have updated > the > > > doc > > > > > > [1] . > > > > > > > > >> >>>>> > > > > > > > > >> >>>>> [1] > > > > > > > > >> >>>> > > > > > > > > >> >>>> > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=296290756 > > > > > > > > >> >>>> > > > > > > > > >> >>>>> Best, > > > > > > > > >> >>>>> Yubin > > > > > > > > >> >>>>> > > > > > > > > >> >>>>> On Thu, Mar 14, 2024 at 2:18 AM Jeyhun Karimov > > > > > > > > je.kari...@gmail.com > > > > > > > > >> >>>>> wrote: > > > > > > > > >> >>>>> > > > > > > > > >> >>>>>> Hi Yubin, > > > > > > > > >> >>>>>> > > > > > > > > >> >>>>>> Thanks for the proposal. +1 for it. > > > > > > > > >> >>>>>> I have one comment: > > > > > > > > >> >>>>>> > > > > > > > > >> >>>>>> I would like to see the SQL syntax for the proposed > > > > > > statement. > > > > > > > > >> Showing > > > > > > > > >> >>>>>> the > > > > > > > > >> >>>>>> SQL parser implementation in the FLIP > > > > > > > > >> >>>>>> for the SQL syntax might be a bit confusing. Also, > the > > > > > formal > > > > > > > > >> >>>>>> definition > > > > > > > > >> >>>>>> is > > > > > > > > >> >>>>>> missing for this SQL clause. > > > > > > > > >> >>>>>> Maybe something like [1] might be useful. WDYT? > > > > > > > > >> >>>>>> > > > > > > > > >> >>>>>> Regards, > > > > > > > > >> >>>>>> Jeyhun > > > > > > > > >> >>>>>> > > > > > > > > >> >>>>>> [1] > > > > > > > > >> >>>> > > > > > > > > >> >>>> > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://github.com/apache/flink/blob/0da60ca1a4754f858cf7c52dd4f0c97ae0e1b0cb/docs/content/docs/dev/table/sql/show.md?plain=1#L620-L632 > > > > > > > > >> >>>> > > > > > > > > >> >>>>>> On Wed, Mar 13, 2024 at 3:28 PM Feng Jin > > > > > > jinfeng1...@gmail.com > > > > > > > > >> >>>>>> wrote: > > > > > > > > >> >>>>>> > > > > > > > > >> >>>>>>> Hi Yubin > > > > > > > > >> >>>>>>> > > > > > > > > >> >>>>>>> Thank you for initiating this FLIP. > > > > > > > > >> >>>>>>> > > > > > > > > >> >>>>>>> I have just one minor question: > > > > > > > > >> >>>>>>> > > > > > > > > >> >>>>>>> I noticed that we added a new function > > > `getCatalogStore` > > > > > to > > > > > > > > expose > > > > > > > > >> >>>>>>> CatalogStore, and it seems fine. > > > > > > > > >> >>>>>>> However, could we add a new method > > > > > `getCatalogDescriptor()` > > > > > > to > > > > > > > > >> >>>>>>> CatalogManager instead of directly exposing > > > CatalogStore? > > > > > > > > >> >>>>>>> By only providing the `getCatalogDescriptor()` > > > interface, > > > > > it > > > > > > > > may be > > > > > > > > >> >>>>>>> easier > > > > > > > > >> >>>>>>> for us to implement audit tracking in > CatalogManager > > > in > > > > > the > > > > > > > > future. > > > > > > > > >> >>>>>>> WDYT ? > > > > > > > > >> >>>>>>> Although we have only collected some modified > events > > > at > > > > > the > > > > > > > > >> >>>>>>> moment.[1] > > > > > > > > >> >>>>>>> > > > > > > > > >> >>>>>>> [1]. > > > > > > > > >> >>>> > > > > > > > > >> >>>> > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-294%3A+Support+Customized+Catalog+Modification+Listener > > > > > > > > >> >>>> > > > > > > > > >> >>>>>>> Best, > > > > > > > > >> >>>>>>> Feng > > > > > > > > >> >>>>>>> > > > > > > > > >> >>>>>>> On Wed, Mar 13, 2024 at 5:31 PM Jingsong Li > > > > > > > > jingsongl...@gmail.com > > > > > > > > >> >>>>>>> wrote: > > > > > > > > >> >>>>>>> > > > > > > > > >> >>>>>>>> +1 for this. > > > > > > > > >> >>>>>>>> > > > > > > > > >> >>>>>>>> We are missing a series of catalog related > syntaxes. > > > > > > > > >> >>>>>>>> Especially after the introduction of catalog > store. > > > [1] > > > > > > > > >> >>>>>>>> > > > > > > > > >> >>>>>>>> [1] > > > > > > > > >> >>>> > > > > > > > > >> >>>> > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-295%3A+Support+lazy+initialization+of+catalogs+and+persistence+of+catalog+configurations > > > > > > > > >> >>>> > > > > > > > > >> >>>>>>>> Best, > > > > > > > > >> >>>>>>>> Jingsong > > > > > > > > >> >>>>>>>> > > > > > > > > >> >>>>>>>> On Wed, Mar 13, 2024 at 5:09 PM Yubin Li > > > > > lyb5...@gmail.com > > > > > > > > >> >>>>>>>> wrote: > > > > > > > > >> >>>>>>>> > > > > > > > > >> >>>>>>>>> Hi devs, > > > > > > > > >> >>>>>>>>> > > > > > > > > >> >>>>>>>>> I'd like to start a discussion about FLIP-436: > > > Introduce > > > > > > > "SHOW > > > > > > > > >> >>>>>>>>> CREATE > > > > > > > > >> >>>>>>>>> CATALOG" Syntax [1]. > > > > > > > > >> >>>>>>>>> > > > > > > > > >> >>>>>>>>> At present, the `SHOW CREATE TABLE` statement > > > provides > > > > > > > strong > > > > > > > > >> >>>>>>>>> support > > > > > > > > >> >>>>>>>>> for > > > > > > > > >> >>>>>>>>> users to easily > > > > > > > > >> >>>>>>>>> reuse created tables. However, despite the > > > increasing > > > > > > > > importance > > > > > > > > >> >>>>>>>>> of the > > > > > > > > >> >>>>>>>>> `Catalog` in user's > > > > > > > > >> >>>>>>>>> business, there is no similar statement for > users to > > > > > use. > > > > > > > > >> >>>>>>>>> > > > > > > > > >> >>>>>>>>> According to the online discussion in > FLINK-24939 > > > [2] > > > > > with > > > > > > > > Jark > > > > > > > > >> >>>>>>>>> Wu > > > > > > > > >> >>>>>>>>> and > > > > > > > > >> >>>>>>>>> Feng > > > > > > > > >> >>>>>>>>> Jin, since `CatalogStore` > > > > > > > > >> >>>>>>>>> has been introduced in FLIP-295 [3], we could > use > > > this > > > > > > > > component > > > > > > > > >> >>>>>>>>> to > > > > > > > > >> >>>>>>>>> implement such a long-awaited > > > > > > > > >> >>>>>>>>> feature, Please refer to the document [1] for > > > > > > implementation > > > > > > > > >> >>>>>>>>> details. > > > > > > > > >> >>>>>>>>> > > > > > > > > >> >>>>>>>>> examples as follows: > > > > > > > > >> >>>>>>>>> > > > > > > > > >> >>>>>>>>> Flink SQL> create catalog cat2 WITH > > > > > > > > ('type'='generic_in_memory', > > > > > > > > >> >>>>>>>>> > > > > > > > > >> >>>>>>>>>> 'default-database'='db'); > > > > > > > > >> >>>>>>>>>> [INFO] Execute statement succeeded. > > > > > > > > >> >>>>>>>>>> Flink SQL> show create catalog cat2; > > > > > > > > >> >>>> > > > > > > > > >> >>>> > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > +----------------------------------------------------------------------------------------+ > > > > > > > > >> >>>> > > > > > > > > >> >>>>>>>>>> | result | > > > > > > > > >> >>>> > > > > > > > > >> >>>> > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > +----------------------------------------------------------------------------------------+ > > > > > > > > >> >>>> > > > > > > > > >> >>>>>>>>>> | CREATE CATALOG `cat2` WITH ( > > > > > > > > >> >>>>>>>>>> 'default-database' = 'db', > > > > > > > > >> >>>>>>>>>> 'type' = 'generic_in_memory' > > > > > > > > >> >>>>>>>>>> ) > > > > > > > > >> >>>>>>>>>> | > > > > > > > > >> >>>> > > > > > > > > >> >>>> > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > +----------------------------------------------------------------------------------------+ > > > > > > > > >> >>>> > > > > > > > > >> >>>>>>>>>> 1 row in set > > > > > > > > >> >>>>>>>>> > > > > > > > > >> >>>>>>>>> Looking forward to hearing from you, thanks! > > > > > > > > >> >>>>>>>>> > > > > > > > > >> >>>>>>>>> Best regards, > > > > > > > > >> >>>>>>>>> Yubin > > > > > > > > >> >>>>>>>>> > > > > > > > > >> >>>>>>>>> [1] > > > > > > > > >> >>>> > > > > > > > > >> >>>> > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=296290756 > > > > > > > > >> >>>> > > > > > > > > >> >>>>>>>>> [2] > > > https://issues.apache.org/jira/browse/FLINK-24939 > > > > > > > > >> >>>>>>>>> [3] > > > > > > > > >> >>>> > > > > > > > > >> >>>> > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-295%3A+Support+lazy+initialization+of+catalogs+and+persistence+of+catalog+configurations > > > > > > > > >> > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
