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https://issues.apache.org/jira/browse/CALCITE-4424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17250986#comment-17250986
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Jiatao Tao edited comment on CALCITE-4424 at 12/20/20, 3:24 AM:
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Hi [~julianhyde], I think they are orthogonal, so answer point2, I would not
change that.
Func like CURRENT_DATE/CURRENT_TIMESTAMPE, I think it doesn't matter to
determine them deterministic or non-deterministic, cuz current we do not
observe that they will affect the optimized result(but rand will). So we just
defined by our own standards, IMO we can define them as deterministic.
was (Author: aron.tao):
Hi [~julianhyde], in fact, I'm also confused about the concept of dynamic
functions. But I think they are orthogonal, so answer point2, I would not
change that.
Func like CURRENT_DATE/CURRENT_TIMESTAMPE, I think it doesn't matter to
determine them deterministic or non-deterministic, cuz current we do not
observe that they will affect the optimized result(but rand will). So we just
defined by our own standards, IMO we can define them as deterministic.
> Complete non-deterministic function in SqlFunction
> --------------------------------------------------
>
> Key: CALCITE-4424
> URL: https://issues.apache.org/jira/browse/CALCITE-4424
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Jiatao Tao
> Assignee: Jiatao Tao
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Current only SqlSequenceValueOperator override isDeterministic, func like
> RAND doesn't override isDeterministic
>
>
>
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