[jira] [Resolved] (CALCITE-3815) Add missing SQL standard aggregate functions: EVERY, SOME, INTERSECTION

["Feng Zhu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-3815?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Feng Zhu resolved CALCITE-3815.
-------------------------------
    Resolution: Resolved

Fixed via [https://github.com/apache/calcite/commit/f11115a2fe9e360f38910f112288581040e0ced5.] Thanks for your PR, [~hanu.ncr]!

> Add missing SQL standard aggregate functions: EVERY, SOME, INTERSECTION
> -----------------------------------------------------------------------
>
>                 Key: CALCITE-3815
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3815
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Julian Hyde
>            Assignee: Hanumath Rao Maduri
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.23.0
>
>          Time Spent: 2h 50m
>  Remaining Estimate: 0h
>
> Add missing SQL standard aggregate functions: EVERY, SOME, INTERSECTION.
> Examples:
> {code}
> SELECT deptno,
>   EVERY(sal < 3000) AS es, SOME(sal < 1000) AS ss,
>   EVERY(comm < 500) AS ec, SOME(comm < 500) AS sc
> FROM emp
> GROUP BY deptno;
> +--------+-------+-------+-------+------+
> | DEPTNO |  ES   |  SS   |  EC   |  SC  |
> +--------+-------+-------+-------+------+
> | 10     | FALSE | FALSE |       |      |
> | 20     | FALSE | TRUE  |       |      |
> | 30     | TRUE  | TRUE  | FALSE | TRUE |
> +--------+-------+-------+-------+------+
> {code}
> {{EVERY}} and {{SOME}} can be implemented by translating to {{MIN}}, {{MAX}}:
> * {{EVERY(condition)}} is equivalent to {{MIN(condition)}};
> * {{SOME(condition)}} is equivalent to {{MAX(condition)}}
> where {{condition}} is a {{BOOLEAN}} expression, possibly allowing {{NULL}} values).
> {{INTERSECTION}} computes the intersection of collections (arrays and multisets). (Compare to {{FUSION}}, which computes the union of collections.)
> {{FUSION}} is in the operator table but there is no code-generation for it. This task should implement {{FUSION}} and {{INTERSECTION}} so that we can run queries in Enumerable mode.



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