[
https://issues.apache.org/jira/browse/FLINK-20485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Timo Walther updated FLINK-20485:
---------------------------------
Description: The rework of aggregate functions in FLINK-18809 and
FLINK-15803 caused a performance regression due to map views being deserialized
multiple times. A solution is to wrap the logic back into a RAW type to have
lazy binary format semantics. (was: The rework of aggregate functions in
FLINK-18809 and FLINK-15803 caused a performance regression due to map views
being deserialized multiple times. )
> Map views are deserialized multiple times
> -----------------------------------------
>
> Key: FLINK-20485
> URL: https://issues.apache.org/jira/browse/FLINK-20485
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Runtime
> Affects Versions: 1.12.0
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
>
> The rework of aggregate functions in FLINK-18809 and FLINK-15803 caused a
> performance regression due to map views being deserialized multiple times. A
> solution is to wrap the logic back into a RAW type to have lazy binary format
> semantics.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
