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https://issues.apache.org/jira/browse/CALCITE-6904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhen Chen updated CALCITE-6904:
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Description: The convert() method of ElementerableJoinRule incorrectly
converts the condition of IS_NOT_DISTINCT_FROM , which is considered an
equivalence condition in calcite and carries a `filterNulls` to save whether to
perform equivalence processing on NULL. However, when converting to
ElementerableJoin, the filterNulls are ignored, resulting in
`IS_NOT_DISTINCT_FROM ($0, $1)` being converted to `=($0, $1)`. (was: The
convert method of ElementerableJoinRule incorrectly converts the condition of
`is not distinct from`, which is considered an equivalence condition in calcite
and carries a `filterNulls` to save whether to perform equivalence processing
on null. However, when converting to ElementerableJoin, the filterNulls are
ignored, resulting in `is_not_distinct_from ($0, $1)` being converted to `=($0,
$1)`.)
> IS_NOT_DISTINCT_FROM is converted error in ElementerableJoinRule
> ----------------------------------------------------------------
>
> Key: CALCITE-6904
> URL: https://issues.apache.org/jira/browse/CALCITE-6904
> Project: Calcite
> Issue Type: Bug
> Reporter: Zhen Chen
> Priority: Major
>
> The convert() method of ElementerableJoinRule incorrectly converts the
> condition of IS_NOT_DISTINCT_FROM , which is considered an equivalence
> condition in calcite and carries a `filterNulls` to save whether to perform
> equivalence processing on NULL. However, when converting to
> ElementerableJoin, the filterNulls are ignored, resulting in
> `IS_NOT_DISTINCT_FROM ($0, $1)` being converted to `=($0, $1)`.
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