[jira] [Resolved] (IMPALA-7868) Move UPDATE-only fields from ModifyStmt to UpdateStmt

["Paul Rogers (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-7868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Rogers resolved IMPALA-7868.
---------------------------------
    Resolution: Won't Fix

Needed for other work which is no longer a priority.

> Move UPDATE-only fields from ModifyStmt to UpdateStmt
> -----------------------------------------------------
>
>                 Key: IMPALA-7868
>                 URL: https://issues.apache.org/jira/browse/IMPALA-7868
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Frontend
>    Affects Versions: Impala 3.0
>            Reporter: Paul Rogers
>            Assignee: Paul Rogers
>            Priority: Minor
>
> A subset of the FE parse node hierarchy:
> {noformat}
> ParseNode
> |- StatementBase
>    |- ModifyStmt
>       |- DeleteStmt
>       |- UpdateStmt
> {noformat}
> The {{ModifyStmt}} holds a number of members that are used only by the {{UpdateStmt}}, but which make no sense for the {{DeleteStmt}}.
> There are some tricky bits because of columns referenced in the {{WHERE}} clause.
> This ticket asks to rationalize the class structure, moving {{UPDATE}}-only fields to the {{UpdateStmt}} class.
>  



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