[jira] [Updated] (BEAM-7150) Support nested AND

["Rui Wang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-7150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rui Wang updated BEAM-7150:
---------------------------
    Description: 
There might be nested AND cases:

a = b AND (c = d AND (e = f)).


Such cases should be flattened as a = b AND c = d AND e = f. 


This is useful because after done so, we can easily build keys for join inputs: each conjunction clause contributes a field of key (key is Row in SQL equi-join) for join inputs.

  was:
There might be nested AND cases:

a = b AND (c = d AND (e = f)).


Such cases should be flattened as a = b AND c = d AND e = f. 


> Support nested AND
> ------------------
>
>                 Key: BEAM-7150
>                 URL: https://issues.apache.org/jira/browse/BEAM-7150
>             Project: Beam
>          Issue Type: Sub-task
>          Components: dsl-sql
>            Reporter: Rui Wang
>            Priority: Major
>
> There might be nested AND cases:
> a = b AND (c = d AND (e = f)).
> Such cases should be flattened as a = b AND c = d AND e = f. 
> This is useful because after done so, we can easily build keys for join inputs: each conjunction clause contributes a field of key (key is Row in SQL equi-join) for join inputs.



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