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Posted to commits@hudi.apache.org by "Zhaojing Yu (Jira)" <ji...@apache.org> on 2022/10/01 12:18:00 UTC

[jira] [Updated] (HUDI-4036) Investigate whether meta fields could be omitted completely

     [ https://issues.apache.org/jira/browse/HUDI-4036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhaojing Yu updated HUDI-4036:
------------------------------
    Fix Version/s: 0.13.0
                       (was: 0.12.1)

> Investigate whether meta fields could be omitted completely
> -----------------------------------------------------------
>
>                 Key: HUDI-4036
>                 URL: https://issues.apache.org/jira/browse/HUDI-4036
>             Project: Apache Hudi
>          Issue Type: Task
>          Components: writer-core
>            Reporter: Alexey Kudinkin
>            Assignee: Alexey Kudinkin
>            Priority: Critical
>             Fix For: 0.13.0
>
>
> Currently, even when meta fields are not populated, we still insert empty-string columns to adhere to the expected schema.
> This has a non-trivial overhead of ~20% (relative to just writing dataset as is), since Spark had to essentially "re-write" the original row with prepended new fields.
> We should investigate whether it's feasible to avoid adding empty-string columns completely if meta-fields are disabled.



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