You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@flink.apache.org by "Timo Walther (Jira)" <ji...@apache.org> on 2020/12/08 08:08:00 UTC

[jira] [Closed] (FLINK-20485) Map views are deserialized multiple times

     [ https://issues.apache.org/jira/browse/FLINK-20485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timo Walther closed FLINK-20485.
--------------------------------
    Resolution: Fixed

[FLINK-20485][table-runtime] Reuse internal data structures in ExternalSerializer
Fixed in 1.13.0: c2972b6e336cc3b3a6cbd22c69a6710dab5246e6
Fixed in 1.12.1: 81bdd3041fb51695b1693d78c46150bfbf7e5748

[FLINK-20485][table] Wrap data views into a lazy binary format
Fixed in 1.13.0: fed8f033b5dcc77c4a3a0b9721f8eb92fd5cf9a8
Fixed in 1.12.1: 0dcd042fe70366993b6cf943d92f6bee754b0c73

> 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: Critical
>              Labels: pull-request-available
>             Fix For: 1.13.0, 1.12.1
>
>
> 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)