>
> > On Mar 5, 2024, at 2:18 PM, Xiaoying Wang
> wrote:
> >
> > Hi community,
> >
> > I want to override the `trim` function. Currently the function it cannot
> > support signature like this: `trim(string, characters)`, which is
> supported
> >
Hi community,
I want to override the `trim` function. Currently the function it cannot
support signature like this: `trim(string, characters)`, which is supported
by database like DuckDB[1].
I implemented a function like the following:
```
public class SqlTrim2Function extends SqlFunction {
> should consider adding the Enumerable rules/operators in your planner to be
> able to deal with those cases as well.
>
> Best,
> Stamatis
>
> On Mon, Mar 28, 2022 at 9:30 PM Xiaoying Wang
> wrote:
>
> > Hi Julian,
> >
> > Oh, I see. Thank you for
ld be improved about this.
> I will open a jira issue and try to fix this.
>
> [1]
>
> https://github.com/apache/flink/blob/master/flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/rules/logical/JoinConditionEqualityTransferRule.scala
>
> Xi
to dev@calcite.
> Please subscribe.
>
> > On Mar 28, 2022, at 11:10 AM, Xiaoying Wang
> wrote:
> >
> > Hi Benchao,
> >
> > Thank you so much for the reply! I don't know why I didn't receive the
> > email but I found your answer at the archive website.
> &
LE convention as you can see here[2]
>
> [1]
> https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/rel/rules/FilterJoinRule.java#L281
> [2]
> https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/adapter/jdbc/JdbcRules.java#
Hi all,
I have a query joins three tables (star schema, T is the fact
table): "select * from R, S, T where R.key = T.key and S.key = T.key" and
want to use calcite to parse and generate the physical plan.
When I pass the query to a volcano planner, it throws the
CannotPlanException:
