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https://issues.apache.org/jira/browse/HIVE-430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12700307#action_12700307
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Prasad Chakka commented on HIVE-430:
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There is a JIRA for this which also has a quick and dirty fix...
https://issues.apache.org/jira/browse/HIVE-378
> Ability to comment desired for hive query files
> -----------------------------------------------
>
> Key: HIVE-430
> URL: https://issues.apache.org/jira/browse/HIVE-430
> Project: Hadoop Hive
> Issue Type: Wish
> Components: Clients, Query Processor
> Reporter: Adam Kramer
> Priority: Minor
>
> It is, in many cases, quite useful to write a query, save it in a file, and
> "run" the file with hive \-f filename. However, as time passes and many such
> files are written, it becomes unclear why I did things the way I did--the
> solution for most code is to comment the code, and I would love to be able to
> comment hive code in .sql/.hql files or queries.
> Standard SQL comment structure is anything following a non-escaped non-quoted
> "-- " or "#" on a single line should cause the rest of the line to be
> ignored. I would love to have this in hive...both in the CLI (for when I
> paste a query in) and in the hive -f file reader option. C-style // and /* */
> commenting would be great too, but only because I'm lazy.
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