[
https://issues.apache.org/jira/browse/CALCITE-3405?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
jin xing updated CALCITE-3405:
--
Description:
Say *beatles* is a *ProjectableFilterableTable*, below Sqls fail to do column
pruning by *BindableTableScan*
{code:java}
Schema of beatles:
i int
j int
k int
select k, 3 from beatles;
select k + j from beatles;{code}
The reason is that *ProjectableFilterableTable* only works when the *Project*
is a simple mapping.
> Prune columns for ProjectableFilterable when project is not simple mapping
> --
>
> Key: CALCITE-3405
> URL: https://issues.apache.org/jira/browse/CALCITE-3405
> Project: Calcite
> Issue Type: Bug
>Reporter: jin xing
>Assignee: jin xing
>Priority: Major
>
> Say *beatles* is a *ProjectableFilterableTable*, below Sqls fail to do column
> pruning by *BindableTableScan*
> {code:java}
> Schema of beatles:
> i int
> j int
> k int
> select k, 3 from beatles;
> select k + j from beatles;{code}
> The reason is that *ProjectableFilterableTable* only works when the *Project*
> is a simple mapping.
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
