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https://issues.apache.org/jira/browse/FLINK-7151?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-7151:
----------------------------------
Labels: auto-unassigned pull-request-available stale-major (was:
auto-unassigned pull-request-available)
I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help
the community manage its development. I see this issues has been marked as
Major but is unassigned and neither itself nor its Sub-Tasks have been updated
for 60 days. I have gone ahead and added a "stale-major" to the issue". If this
ticket is a Major, please either assign yourself or give an update. Afterwards,
please remove the label or in 7 days the issue will be deprioritized.
> Support function DDL
> --------------------
>
> Key: FLINK-7151
> URL: https://issues.apache.org/jira/browse/FLINK-7151
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / API
> Reporter: yuemeng
> Priority: Major
> Labels: auto-unassigned, pull-request-available, stale-major
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Based on create function and table.we can register a udf,udaf,udtf use sql:
> {code}
> CREATE FUNCTION [IF NOT EXISTS] [catalog_name.db_name.]function_name AS
> class_name;
> DROP FUNCTION [IF EXISTS] [catalog_name.db_name.]function_name;
> ALTER FUNCTION [IF EXISTS] [catalog_name.db_name.]function_name RENAME TO
> new_name;
> {code}
> {code}
> CREATE function 'TOPK' AS
> 'com.xxxx.aggregate.udaf.distinctUdaf.topk.ITopKUDAF';
> INSERT INTO db_sink SELECT id, TOPK(price, 5, 'DESC') FROM kafka_source GROUP
> BY id;
> {code}
> This ticket can assume that the function class is already loaded in classpath
> by users. Advanced syntax like to how to dynamically load udf libraries from
> external locations can be on a separate ticket.
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