[jira] [Updated] (CALCITE-7160) Simplify AND/OR with DISTINCT predicates to SEARCH

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-7160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated CALCITE-7160:
------------------------------------
    Labels: pull-request-available  (was: )

> Simplify AND/OR with DISTINCT predicates to SEARCH
> --------------------------------------------------
>
>                 Key: CALCITE-7160
>                 URL: https://issues.apache.org/jira/browse/CALCITE-7160
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 1.40.0
>            Reporter: Stamatis Zampetakis
>            Assignee: Stamatis Zampetakis
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.41.0
>
>
> Simplify conjunctions (AND) and disjunctions (OR) with {{IS [NOT] DISTINCT FROM}} predicates and literals to {{{}SEARCH{}}}.
> +Example I+
> {noformat}
> OR(IS NOT DISTINCT FROM($0, 10), IS NOT DISTINCT FROM($0, 20))
> SEARCH($0, Sarg[10, 20; NULL AS FALSE])
> {noformat}
> +Example II+
> {noformat}
> AND(IS DISTINCT FROM($0, 10), IS DISTINCT FROM($0, 20))
> SEARCH($0, Sarg[(-∞..10), (10..20), (20..+∞); NULL AS TRUE])
> {noformat}
> These simplifications are not very different to those performed for EQUALS (=) and NOT EQUALS (!=) albeit the special null-ability semantics of the DISTINCT predicate.



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