[jira] [Commented] (FLINK-6810) Add Some built-in Scalar Function supported
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https://issues.apache.org/jira/browse/FLINK-6810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16563646#comment-16563646
]
Fabian Hueske commented on FLINK-6810:
--
Hi [~hequn8128], thanks for adding contribution instructions! That's a great
idea. I'll add another point about testing. Thanks, Fabian
> Add Some built-in Scalar Function supported
> ---
>
> Key: FLINK-6810
> URL: https://issues.apache.org/jira/browse/FLINK-6810
> Project: Flink
> Issue Type: New Feature
> Components: Table API SQL
>Affects Versions: 1.4.0
>Reporter: sunjincheng
>Assignee: sunjincheng
>Priority: Major
> Labels: starter
>
> In this JIRA, will create some sub-task for add specific scalar function,
> such as mathematical-function {{LOG}}, date-functions
> {{DATEADD}},string-functions {{LPAD}}, etc.
> *How To Contribute a build-in scalar function*
> Thank you very much for contributing a build-in function. In order to make
> sure your contributions are in a good direction, it is recommended to read
> the following instructions.
> # Research the behavior of the function which you are going to contribute in
> major DBMSs. This is very import since we have to understand the exact
> semantics of the function.
> # It is recommended to add function both for sql and talbe-api.
> # Every scalar function should add TableAPI docs in
> {{./docs/dev/table/tableApi.md#built-in-functions}}. Add SQL docs in
> {{./docs/dev/table/sql.md#built-in-functions}}. When add docs for table-api,
> you should add both scala docs and java docs. Make sure your description of
> the function is accurate. Please do not copy documentation from other
> projects. Especially if other projects are not Apache licensed.
> # Take overflow, NullPointerException and other exceptions into consideration.
> Welcome anybody to add the sub-task about standard database scalar function.
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[jira] [Commented] (FLINK-6810) Add Some built-in Scalar Function supported
[
https://issues.apache.org/jira/browse/FLINK-6810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16560665#comment-16560665
]
Hequn Cheng commented on FLINK-6810:
Hi all, I added an instruction about how to contribute a build-in scalar
function in this Jira description. Hope it helps you when you going to make a
contribute.
> Add Some built-in Scalar Function supported
> ---
>
> Key: FLINK-6810
> URL: https://issues.apache.org/jira/browse/FLINK-6810
> Project: Flink
> Issue Type: New Feature
> Components: Table API SQL
>Affects Versions: 1.4.0
>Reporter: sunjincheng
>Assignee: sunjincheng
>Priority: Major
> Labels: starter
>
> In this JIRA, will create some sub-task for add specific scalar function,
> such as mathematical-function {{LOG}}, date-functions
> {{DATEADD}},string-functions {{LPAD}}, etc.
> *How To Contribute a build-in scalar function*
> Thank you very much for contributing a build-in function. In order to make
> sure your contributions are in a good direction, it is recommended to read
> the following instructions.
> # Research the behavior of the function which you are going to contribute in
> major DBMSs. This is very import since we have to understand the exact
> semantics of the function.
> # It is recommended to add function both for sql and talbe-api.
> # Every scalar function should add TableAPI docs in
> {{./docs/dev/table/tableApi.md#built-in-functions}}. Add SQL docs in
> {{./docs/dev/table/sql.md#built-in-functions}}. When add docs for table-api,
> you should add both scala docs and java docs. Make sure your description of
> the function is accurate. Please do not copy documentation from other
> projects. Especially if other projects are not Apache licensed.
> # Take overflow, NullPointerException and other exceptions into consideration.
> Welcome anybody to add the sub-task about standard database scalar function.
--
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[jira] [Commented] (FLINK-6810) Add Some built-in Scalar Function supported
[
https://issues.apache.org/jira/browse/FLINK-6810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16397874#comment-16397874
]
Fabian Hueske commented on FLINK-6810:
--
Hi [~fdiazgon], sure :).
I suggest to pick one that does not have an open PR and no dependencies. You
can have a look at the resolved issues to get an idea of what changes are
necessary.
Best, Fabian
> Add Some built-in Scalar Function supported
> ---
>
> Key: FLINK-6810
> URL: https://issues.apache.org/jira/browse/FLINK-6810
> Project: Flink
> Issue Type: New Feature
> Components: Table API SQL
>Affects Versions: 1.4.0
>Reporter: sunjincheng
>Assignee: sunjincheng
>Priority: Major
> Labels: starter
>
> In this JIRA, will create some sub-task for add specific scalar function,
> such as mathematical-function {{LOG}}, date-functions
> {{DATEADD}},string-functions {{LPAD}}, etc.
> I think is good way to let SQL work, and then add TableAPI to supported. So I
> suggest one scalar function create two sub-task, one is for SQL. another for
> TableAPI.
> *Note:*
> Every scalar function should add TableAPI doc in
> {{./docs/dev/table/tableApi.md#built-in-functions}}.
> Add SQL doc in {{./docs/dev/table/sql.md#built-in-functions}}.
> Welcome anybody to add the sub-task about standard database scalar function.
--
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[jira] [Commented] (FLINK-6810) Add Some built-in Scalar Function supported
[
https://issues.apache.org/jira/browse/FLINK-6810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16397512#comment-16397512
]
Fernando Díaz commented on FLINK-6810:
--
Hi. I would like to work on any of these. They seem OK for a newcomer ;)
> Add Some built-in Scalar Function supported
> ---
>
> Key: FLINK-6810
> URL: https://issues.apache.org/jira/browse/FLINK-6810
> Project: Flink
> Issue Type: New Feature
> Components: Table API SQL
>Affects Versions: 1.4.0
>Reporter: sunjincheng
>Assignee: sunjincheng
>Priority: Major
> Labels: starter
>
> In this JIRA, will create some sub-task for add specific scalar function,
> such as mathematical-function {{LOG}}, date-functions
> {{DATEADD}},string-functions {{LPAD}}, etc.
> I think is good way to let SQL work, and then add TableAPI to supported. So I
> suggest one scalar function create two sub-task, one is for SQL. another for
> TableAPI.
> *Note:*
> Every scalar function should add TableAPI doc in
> {{./docs/dev/table/tableApi.md#built-in-functions}}.
> Add SQL doc in {{./docs/dev/table/sql.md#built-in-functions}}.
> Welcome anybody to add the sub-task about standard database scalar function.
--
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[jira] [Commented] (FLINK-6810) Add Some built-in Scalar Function supported
[
https://issues.apache.org/jira/browse/FLINK-6810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16038438#comment-16038438
]
sunjincheng commented on FLINK-6810:
Hi, [~wheat9] We need to do this with calcite. So, frankly I don't have a very
detailed time plan, but I think these features should be completed in 1.4
release. What do you think?
> Add Some built-in Scalar Function supported
> ---
>
> Key: FLINK-6810
> URL: https://issues.apache.org/jira/browse/FLINK-6810
> Project: Flink
> Issue Type: New Feature
> Components: Table API & SQL
>Affects Versions: 1.4.0
>Reporter: sunjincheng
>
> In this JIRA, will create some sub-task for add specific scalar function,
> such as mathematical-function {{LOG}}, date-functions
> {{DATEADD}},string-functions {{LPAD}}, etc.
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[jira] [Commented] (FLINK-6810) Add Some built-in Scalar Function supported
[
https://issues.apache.org/jira/browse/FLINK-6810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16037492#comment-16037492
]
Haohui Mai commented on FLINK-6810:
---
Thanks for creating these jira. They are quite useful.
Is it possible to share the timeline of when they will be implemented? Thanks.
> Add Some built-in Scalar Function supported
> ---
>
> Key: FLINK-6810
> URL: https://issues.apache.org/jira/browse/FLINK-6810
> Project: Flink
> Issue Type: New Feature
> Components: Table API & SQL
>Affects Versions: 1.4.0
>Reporter: sunjincheng
>
> In this JIRA, will create some sub-task for add specific scalar function,
> such as mathematical-function {{LOG}}, date-functions
> {{DATEADD}},string-functions {{LPAD}}, etc.
--
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