[jira] [Updated] (CALCITE-1440) Add Combine RelNode for converting multiple SQL statements to unified RelNode Tree

["TJ Banghart (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-1440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

TJ Banghart updated CALCITE-1440:
---------------------------------
    Summary: Add Combine RelNode for converting multiple SQL statements to unified RelNode Tree  (was: Implement planner for converting multiple SQL statements to unified RelNode Tree)

> Add Combine RelNode for converting multiple SQL statements to unified RelNode Tree
> ----------------------------------------------------------------------------------
>
>                 Key: CALCITE-1440
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1440
>             Project: Calcite
>          Issue Type: New Feature
>            Reporter: Chinmay Kolhatkar
>            Assignee: TJ Banghart
>            Priority: Major
>              Labels: pull-request-available
>
> This can be implemented as a separate planner or in {{VolcanoPlanner}} itself. The planner should take multiple SQL statements as input and return a unified {{RelNode}} tree.
> Example of above is as follows:
> {{SELECT COL1, COL2 FROM TABLE WHERE COL3 > 10;}}
> {{SELECT COL1, COL2 FROM TABLE WHERE COL4  = 'abc';}}
> The above 2 statements have a common path and hence can provide a unified {{RelNode}} tree as follows:
> {noformat}
>  [Scan] -> [Project (COL1, COL2)] -> [Filter (COL4 = 'abc')] -> [Delta]
>                     |
>                     V
>             [Filter (COL3 > 10)]
>                     |
>                     v
>                  [Delta]
> {noformat}



--
This message was sent by Atlassian Jira
(v8.20.10#820010)