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https://issues.apache.org/jira/browse/BEAM-10550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robin Qiu reassigned BEAM-10550:
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Assignee: Robin Qiu (was: Zijie Song)
> Update solution for ZetaSQL DOUBLE NaN equals checks.
> -----------------------------------------------------
>
> Key: BEAM-10550
> URL: https://issues.apache.org/jira/browse/BEAM-10550
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql-zetasql
> Reporter: Zijie Song
> Assignee: Robin Qiu
> Priority: P2
>
> 'NaN == NaN' for ZetaSQL DOUBLE type should be false. But it would hit into
> the Calcite operation simplification block to be simplified to 'null or NaN
> is not null' in Calcite. This would miscalculate the expression to be true.
> Currently, we add an additional random parameter for the wrapper function of
> NaN, to avoid
> triggering Calcite operation simplification. But it is only a temporary
> solution.
> Once the Calcite version updated, we should replace this method by overriding
> isDeterministic() for RexNode to make it false.
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