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https://issues.apache.org/jira/browse/FLINK-14055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17377072#comment-17377072
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Zhenqiu Huang commented on FLINK-14055:
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[~gelimusong]
Please see the doc I shared. Yes, the URLclassloader is used in table
environment for code generation. Beside this, we need to ship the udf resource
to cluster and put these udf in the classpath of Task manager, so that TM can
use the regular UserCodeClassLoader to access them. But for different
deployment mode, we need to consider some deployment details.
> Add advanced function DDL syntax "USING JAR/FILE/ACHIVE"
> --------------------------------------------------------
>
> Key: FLINK-14055
> URL: https://issues.apache.org/jira/browse/FLINK-14055
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: Bowen Li
> Priority: Major
> Labels: auto-unassigned, sprint
>
> As FLINK-7151 adds basic function DDL to Flink, this ticket is to support
> dynamically loading functions from external source in function DDL with
> advanced syntax like
>
> {code:java}
> CREATE FUNCTION func_name as class_name USING JAR/FILE/ACHIEVE 'xxx' [,
> JAR/FILE/ACHIEVE 'yyy'] ;
> {code}
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