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https://issues.apache.org/jira/browse/HIVE-691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12737282#action_12737282
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Prasad Chakka commented on HIVE-691:
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see this example from mysql
{code}
EXPORT_SET(bits,on,off[,separator[,number_of_bits]])
{code}
from http://dev.mysql.com/doc/refman/5.0/en/string-functions.html
> show documentation for user defined functions
> ---------------------------------------------
>
> Key: HIVE-691
> URL: https://issues.apache.org/jira/browse/HIVE-691
> Project: Hadoop Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Prasad Chakka
> Assignee: Emil Ibrishimov
>
> There are lot of functions and more of them will be added. I think it is
> cumbersome to update wiki or ask users to go to wiki to find out
> documentation. instead each user defined function can have an annotation
> containing documentation and 'show functions' command or similar can show the
> documentation to users on command line. it will also be easier to update the
> documentation along with code.
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