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Posted to dev@hive.apache.org by "Jason Dere (JIRA)" <ji...@apache.org> on 2013/08/31 01:35:52 UTC
[jira] [Commented] (HIVE-5192) concat()/concat_ws() can use common
implementation
[ https://issues.apache.org/jira/browse/HIVE-5192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13755264#comment-13755264 ]
Jason Dere commented on HIVE-5192:
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There's actually some differences in what arguments are allowed by the two functions, so merging concat() and concat_ws() would mean the following changes in behavior for each function:
concat() would allow lists of primitive types as arguments; each item of each list would be concatenated to the result string.
concat_ws() would allow non-string types as arguments, so concat_ws('|', 1, 2) would be valid.
> concat()/concat_ws() can use common implementation
> --------------------------------------------------
>
> Key: HIVE-5192
> URL: https://issues.apache.org/jira/browse/HIVE-5192
> Project: Hive
> Issue Type: Improvement
> Reporter: Jason Dere
>
> One of the review comments from HIVE-4844 mentioned that concat/concat_ws can probably share a common implementation.
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