[jira] [Closed] (ARROW-17906) [C++][Compute] Implement a parser for expressions

["Sasha Krassovsky (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-17906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sasha Krassovsky closed ARROW-17906.
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    Resolution: Duplicate

This is actually a duplicate of https://issues.apache.org/jira/browse/ARROW-17351

> [C++][Compute] Implement a parser for expressions
> -------------------------------------------------
>
>                 Key: ARROW-17906
>                 URL: https://issues.apache.org/jira/browse/ARROW-17906
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Sasha Krassovsky
>            Assignee: Sasha Krassovsky
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> I've seen a few people on the mailing list asking for something like this and I've wanted it myself, so I went ahead and implemented a parser for a lisp-like way of generating Expressions. Calls are of the form {{{}(<fn> <args>){}}}, scalars are of the form {{{}$type:value{}}}, and field refs are of the form {{{}!<dot path>{}}}.



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