[
https://issues.apache.org/jira/browse/HAWQ-1110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Goden Yao updated HAWQ-1110:
----------------------------
Assignee: Oleksandr Diachenko (was: Lei Chang)
> Optimize LIKE operator on storage layer
> ---------------------------------------
>
> Key: HAWQ-1110
> URL: https://issues.apache.org/jira/browse/HAWQ-1110
> Project: Apache HAWQ
> Issue Type: Improvement
> Components: PXF
> Reporter: Oleksandr Diachenko
> Assignee: Oleksandr Diachenko
> Fix For: backlog
>
>
> As for now HiveORC profile doesn't use any storage layer optimizations for
> LIKE operator.
> Current optimization could be applied:
> 1) Parse first token of LIKE clause before first occurrence of "%" symbol.
> 2) Apply ORC filter: >=<TOKEN> AND <=<NEXT_TOKEN>
> Where NEXT_TOKEN =
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
