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https://issues.apache.org/jira/browse/HIVE-2659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13170744#comment-13170744
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Carl Steinbach commented on HIVE-2659:
--------------------------------------
HIVE-1892 implemented a mechanism that filters the output of the SHOW FUNCTIONS
command in order to remove type operators, e.g. DOUBLE, BOOLEAN, etc.
However, we're still not removing other "non-function" functions such as '+',
'&', 'if', 'in', etc. Instead of filtering the output of SHOW FUNCTIONS,
I think a better approach is to add registerInternalUDF and
registerInternalGenericUDF
methods to FunctionRegistry, and then use the information captured by these
methods to influence the generation of the list of functions returned to SHOW
FUNCTIONS.
> SHOW FUNCTIONS still returns internal operators
> -----------------------------------------------
>
> Key: HIVE-2659
> URL: https://issues.apache.org/jira/browse/HIVE-2659
> Project: Hive
> Issue Type: Bug
> Components: UDF
> Reporter: Carl Steinbach
>
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