Hi Bowen~ We don’t intend to support create/drop catalog syntax in this flip, we may support it if there indeed has a strong desire. And I’m going to kick off a vote for this flip, feel free to review again.
Best, Terry Wang > 2019年9月26日 00:44，Xuefu Z <usxu...@gmail.com> 写道： > > Actually catalogs are more of system settings than of user objects that a > user might create or drop constantly. Thus, it's probably sufficient to set > up catalog information in the config file, at least for now. > > Thanks, > Xuefu > > On Tue, Sep 24, 2019 at 7:10 PM Terry Wang <zjuwa...@gmail.com > <mailto:zjuwa...@gmail.com>> wrote: > >> Thanks Bowen for your insightful comments, I’ll think twice and do >> corresponding improvement. >> After finished, I’ll update in this mailing thread again. >> Best, >> Terry Wang >> >> >> >>> 在 2019年9月25日，上午8:28，Bowen Li <bowenl...@gmail.com> 写道： >>> >>> BTW, will there be a "CREATE/DROP CATALOG" DDL? >>> >>> Though it's not SQL standard, I can see it'll be useful and handy for >> our end users in many cases. >>> >>> On Mon, Sep 23, 2019 at 12:28 PM Bowen Li <bowenl...@gmail.com >>> <mailto:bowenl...@gmail.com> <mailto: >> bowenl...@gmail.com <mailto:bowenl...@gmail.com>>> wrote: >>> Hi Terry, >>> >>> Thanks for driving the effort! I left some comments in the doc. >>> >>> AFAIU, the biggest motivation is to support DDLs in sql parser so that >> both Table API and SQL CLI can share the stack, despite that SQL CLI has >> already supported some commands itself. However, I don't see details on how >> SQL CLI would migrate and depend on sql parser, and how Table API and SQL >> CLI would actually share SQL parser. I'm not sure yet how much work that >> will take, just want to double check that you didn't include them because >> they are very trivial according to your estimate? >>> >>> >>> On Mon, Sep 16, 2019 at 1:46 AM Terry Wang <zjuwa...@gmail.com >>> <mailto:zjuwa...@gmail.com> <mailto: >> zjuwa...@gmail.com <mailto:zjuwa...@gmail.com>>> wrote: >>> Hi everyone, >>> >>> In flink 1.9, we have introduced some awesome features such as complete >> catalog support[1] and sql ddl support[2]. These features have been a >> critical integration for Flink to be able to manage data and metadata like >> a classic RDBMS and make developers more easy to construct their >> real-time/off-line warehouse or sth similar base on flink. >>> >>> But there is still a lack of support on how Flink SQL DDL to manage >> metadata and data like classic RDBMS such as `alter table rename` and so on. >>> >>> So I’d like to kick off a discussion on enhancing Flink Sql Ddls: >>> >> https://docs.google.com/document/d/1mhZmx1h2ecfL0x8OzYD1n-nVRn4yE7pwk4jGed4k7kc/edit?usp=sharing >> >> <https://docs.google.com/document/d/1mhZmx1h2ecfL0x8OzYD1n-nVRn4yE7pwk4jGed4k7kc/edit?usp=sharing> >> < >> https://docs.google.com/document/d/1mhZmx1h2ecfL0x8OzYD1n-nVRn4yE7pwk4jGed4k7kc/edit?usp=sharing >> >> <https://docs.google.com/document/d/1mhZmx1h2ecfL0x8OzYD1n-nVRn4yE7pwk4jGed4k7kc/edit?usp=sharing>> >> < >> https://docs.google.com/document/d/1mhZmx1h2ecfL0x8OzYD1n-nVRn4yE7pwk4jGed4k7kc/edit?usp=sharing >> >> <https://docs.google.com/document/d/1mhZmx1h2ecfL0x8OzYD1n-nVRn4yE7pwk4jGed4k7kc/edit?usp=sharing> >> < >> https://docs.google.com/document/d/1mhZmx1h2ecfL0x8OzYD1n-nVRn4yE7pwk4jGed4k7kc/edit?usp=sharing >> >> <https://docs.google.com/document/d/1mhZmx1h2ecfL0x8OzYD1n-nVRn4yE7pwk4jGed4k7kc/edit?usp=sharing> >>>> >>> >>> In short, it: >>> - Add Catalog DDL enhancement support: show catalogs / describe >> catalog / use catalog >>> - Add Database DDL enhancement support: show databses / create >> database / drop database/ alter database >>> - Add Table DDL enhancement support: show tables/ describe >> table / alter table >>> - Add Function DDL enhancement support: show functions/ create >> function /drop function >>> >>> Looking forward to your opinions. >>> >>> Best, >>> Terry Wang >>> >>> >>> >>> [1]:https://issues.apache.org/jira/browse/FLINK-11275 >>> <https://issues.apache.org/jira/browse/FLINK-11275> < >> https://issues.apache.org/jira/browse/FLINK-11275 >> <https://issues.apache.org/jira/browse/FLINK-11275>> < >> https://issues.apache.org/jira/browse/FLINK-11275 >> <https://issues.apache.org/jira/browse/FLINK-11275> < >> https://issues.apache.org/jira/browse/FLINK-11275 >> <https://issues.apache.org/jira/browse/FLINK-11275>>> >>> [2]:https://issues.apache.org/jira/browse/FLINK-1 >>> <https://issues.apache.org/jira/browse/FLINK-1> < >> https://issues.apache.org/jira/browse/FLINK-1 >> <https://issues.apache.org/jira/browse/FLINK-1>> < >> https://issues.apache.org/jira/browse/FLINK-11275 >> <https://issues.apache.org/jira/browse/FLINK-11275> < >> https://issues.apache.org/jira/browse/FLINK-11275 >> <https://issues.apache.org/jira/browse/FLINK-11275>>>0232 >>> <https://issues.apache.org/jira/browse/FLINK-11275 >>> <https://issues.apache.org/jira/browse/FLINK-11275> < >> https://issues.apache.org/jira/browse/FLINK-11275 >> <https://issues.apache.org/jira/browse/FLINK-11275>>> >> >> > > -- > Xuefu Zhang > > "In Honey We Trust!"
