[
https://issues.apache.org/jira/browse/KUDU-1452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15315604#comment-15315604
]
Dan Burkert commented on KUDU-1452:
-----------------------------------
We could potentially do C++ regular expression evaluation. Predicates are
always evaluated server side, so Java regex won't be available. I imagine
C++'s are powerful enough to cover the cases we will care about, though? I've
personally never used the C++ regex library
(http://en.cppreference.com/w/cpp/regex).
> Add predicate to allow scan based on COLUMN LIKE '%val%'
> --------------------------------------------------------
>
> Key: KUDU-1452
> URL: https://issues.apache.org/jira/browse/KUDU-1452
> Project: Kudu
> Issue Type: New Feature
> Components: api, client
> Reporter: Sameer Abhyankar
> Assignee: Sameer Abhyankar
>
> While working on a different issue, I noticed that Kudu currently has no way
> to fetch rows from a table based on the COLUMN LIKE '%value%' filter.
> Most relational DBs will allow lookups based on something like this:
> select c1, c2 from table-a where c3 like '%something%'
> I cant think of an efficient way to do this in Kudu, but I think it would
> still be more efficient than a client fetching all the rows and then doing
> the filtering.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
