[
https://issues.apache.org/jira/browse/CALCITE-6199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17811479#comment-17811479
]
Jiajun Xie commented on CALCITE-6199:
-------------------------------------
Fixed in
[75511b8.|https://github.com/apache/calcite/commit/75511b82ab13ff95bc65f6180d40cf1e234b834e]
> Trim unused fields for SNAPSHOT and SAMPLE if table has VIRTUAL column
> -----------------------------------------------------------------------
>
> Key: CALCITE-6199
> URL: https://issues.apache.org/jira/browse/CALCITE-6199
> Project: Calcite
> Issue Type: Improvement
> Reporter: Jiajun Xie
> Assignee: Jiajun Xie
> Priority: Major
> Labels: pull-request-available
>
> RelFieldTrimmer not support SNAPSHOT( So do Sample)
> * Here is a SQL example
> {code:java}
> select D, E from VIRTUALCOLUMNS.VC_T1
> for system_time as of TIMESTAMP '2011-01-02 00:00:00' {code}
> * Before Trimming
> {code:java}
> LogicalProject(D=[$3], E=[$4])
> LogicalSnapshot(period=[2011-01-02 00:00:00])
> LogicalProject(A=[$0], B=[$1], C=[$2], D=[$3], $f4=[+($0, 1)])
> LogicalTableScan(table=[[CATALOG, VIRTUALCOLUMNS, VC_T1]]){code}
> * After Trimming
> {code:java}
> LogicalSnapshot(period=[2011-01-02 00:00:00])
> LogicalProject(D=[$3], $f4=[+($0, 1)])
> LogicalTableScan(table=[[CATALOG, VIRTUALCOLUMNS, VC_T1]]){code}
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
