got it, thanks for clarifications.
There is no clear spec of what the type should be, so it's hard to say
whether this is a bug. The NULL type that is inferred can be interpreted
as correct given the context, that expression indeed will evaluate to
NULL. It is more specific than VARCHAR,
Tony,
You’re asking about how the Volcano algorithm computes metadata for equivalence
classes (what Calcite calls subsets) and to my knowledge it’s not been spelled
out explicitly (either in the Volcano/Cascades papers or in Calcite
discussions).
Calcite needs various kinds of metadata, such
I merged the PR. Thank you for the contribution!
> On Jan 11, 2024, at 12:16 PM, Paul Jackson
> wrote:
>
> I fixed the checker framework problems. One of the last ones - continuous
> integration - ran out of memory. Is that flakiness or something I need to fix?
>
> Thanks,
> -Paul
>
>
> On
Hello,
The RuleMatchVisualizer uses the planner to get the cost [1], and the
Volcano planner uses the bestCost attribute for RelSubset [2].
The color depends on the steps:
* For intermediate steps, the purple color shows which nodes have been
matched by the rule. Light blue shows added nodes.
*
Hello Mihai,
not exactly my area of expertise but I will nonetheless take a look in the
next few days if nobody gets to it before me, as I agree that this is an
important issue and is needed to fix related pending issues (thanks for all
your efforts, btw).
Best regards,
Alessandro
On Tue, 16 Jan
xy created CALCITE-6207:
---
Summary: Improve JDBC connection resource in JDBCUtils
Key: CALCITE-6207
URL: https://issues.apache.org/jira/browse/CALCITE-6207
Project: Calcite
Issue Type: Improvement
