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Posted to jira@arrow.apache.org by "Sasha Krassovsky (Jira)" <ji...@apache.org> on 2022/10/01 04:59:00 UTC

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

Sasha Krassovsky created ARROW-17906:
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             Summary: [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
            Reporter: Sasha Krassovsky
            Assignee: Sasha Krassovsky


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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