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https://issues.apache.org/jira/browse/FLINK-41380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Nuyanzin updated FLINK-41380:
------------------------------------
    Description: 
The problem with generated code for {{CASE ... WHEN}} is that it is a nested 
{{if..else}} which is very bad adapted to code splitter
as a result the output of code splitter grows fast
for instance
{noformat}
amount of conditions                chars    lines  fields  methods  depth
2                                  5080      182       4        4      5
3                                  6311      253      25        4      6
4                                  7815      330      31        6      7
5                                  9153      388      37        7      8
10                                15089      658      67        7     13
100                              935230     6626     607      471      3
1000                          242427582   100838    6007    10858      3
{noformat}

  was:
The problem with generated code for {{CASE ... WHEN}} is that it is a nested 
{{if..else}} which is very bad adapted to code splitter
as a result the output of code splitter grows fast
for instance
{noformat}
amount of conditions           chars    lines  fields  methods  depth
2                                  5080      182       4        4      5
3                                  6311      253      25        4      6
4                                  7815      330      31        6      7
5                                  9153      388      37        7      8
10                                15089      658      67        7     13
100                              935230     6626     607      471      3
1000                          242427582   100838    6007    10858      3
{noformat}


> Make generated code in case of CASE ... WHEN friendlier to code splitter
> ------------------------------------------------------------------------
>
>                 Key: FLINK-41380
>                 URL: https://issues.apache.org/jira/browse/FLINK-41380
>             Project: Flink
>          Issue Type: Technical Debt
>          Components: Table SQL / Runtime
>            Reporter: Sergey Nuyanzin
>            Assignee: Sergey Nuyanzin
>            Priority: Major
>
> The problem with generated code for {{CASE ... WHEN}} is that it is a nested 
> {{if..else}} which is very bad adapted to code splitter
> as a result the output of code splitter grows fast
> for instance
> {noformat}
> amount of conditions                chars    lines  fields  methods  depth
> 2                                  5080      182       4        4      5
> 3                                  6311      253      25        4      6
> 4                                  7815      330      31        6      7
> 5                                  9153      388      37        7      8
> 10                                15089      658      67        7     13
> 100                              935230     6626     607      471      3
> 1000                          242427582   100838    6007    10858      3
> {noformat}



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