[
https://issues.apache.org/jira/browse/HIVE-642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12733747#action_12733747
]
Emil Ibrishimov commented on HIVE-642:
--------------------------------------
There are some easy (compromise) ways to optimize split:
1. Check if the regex argument actually contains some "regex specific
characters" and if it doesn't, do a straightforward split without converting to
strings.
2. Assume some default value for the second argument (for example - split(str)
to be equivalent to split(str, ' ') and optimize for this value
3. Have two separate split functions - one that does regex and one that splits
around plain text.
I think that 1 is a good choice and can be done rather quickly.
> udf equivalent to string split
> ------------------------------
>
> Key: HIVE-642
> URL: https://issues.apache.org/jira/browse/HIVE-642
> Project: Hadoop Hive
> Issue Type: New Feature
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Emil Ibrishimov
> Fix For: 0.4.0
>
> Attachments: HIVE-642.1.patch, HIVE-642.2.patch
>
>
> It would be very useful to have a function equivalent to string split in java
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
