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Posted to issues-all@impala.apache.org by "Paul Rogers (JIRA)" <ji...@apache.org> on 2018/11/19 02:31:00 UTC
[jira] [Updated] (IMPALA-7868) Move UPDATE-only fields from
ModifyStmt to UpdateStmt
[ https://issues.apache.org/jira/browse/IMPALA-7868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Paul Rogers updated IMPALA-7868:
--------------------------------
Description:
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.
was:
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 fr the {{DeleteStmt}}.
This ticket asks to rationalize the class structure, moving {{UPDATE}}-only fields to the {{UpdateStmt}} class.
> 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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