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https://issues.apache.org/jira/browse/CALCITE-4424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17250594#comment-17250594
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Julian Hyde commented on CALCITE-4424:
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[~Aron.tao], Can you also address dynamic functions?
* In your terminology, do you consider a dynamic function like
{{CURRENT_DATE}} to be deterministic or non-deterministic?
* We currently identify dynamic functions by overriding the method
\{{SqlOperator.isDynamicFunction()}}. Would you change that?
> 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, these func seems are not
> deterministic(the list comes from "isDynamicFunction"):
> 1. SqlAbstractTimeFunction
> 2. SqlBaseContextVariable
> 3. SqlCurrentDateFunction
> 4. SqlRandFunction
> 5. SqlRandIntegerFunction
>
>
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