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https://issues.apache.org/jira/browse/CALCITE-2663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16687407#comment-16687407
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Julian Hyde commented on CALCITE-2663:
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I rebased and fixed up as
https://github.com/julianhyde/calcite/tree/2663-create-function.
Two things you still need to do:
* Add syntax to reference.md
* When you parse {{CREATE FUNCTION f AS 'path' USING JAR 'foo', FILE 'bar'}}
gets unparsed as {{CREATE FUNCTION f AS 'path' ('foo', 'bar')}}. Can you fix
unparse so that it generates JAR and FILE.
> create function and drop function SQL statement
> -----------------------------------------------
>
> Key: CALCITE-2663
> URL: https://issues.apache.org/jira/browse/CALCITE-2663
> Project: Calcite
> Issue Type: Improvement
> Components: server
> Affects Versions: 1.16.0, 1.17.0
> Reporter: ambition
> Assignee: Julian Hyde
> Priority: Minor
> Fix For: 1.18.0
>
>
> support create function and drop function statement like apache hive:
> {code:java}
> CREATE [OR REPLACE] FUNCTION [IF NOT EXISTS] [db_name.]function_name AS
> class_name
> [USING JAR|FILE|ARCHIVE 'file_uri' [, JAR|FILE|ARCHIVE 'file_uri'] ];
> DROP FUNCTION [IF EXISTS] function_name;
> {code}
>
>
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