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https://issues.apache.org/jira/browse/DRILL-3?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13507463#comment-13507463
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Jacques Nadeau commented on DRILL-3:
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I've built a logical plan parser and updated the google design doc to our
latest thoughts. It lacks tests but hopefully starts people's thinking about
things. I still want to spend some time simplifying the functions and
expressions. The parser shouldn't be generating custom objects for each
function. Rather we need to define a parameter validator set of classes that
work together with a name and output type determiner to create a function
definition. But this works for now.
I've submitted a github pull request for this functionality at
https://github.com/apache/incubator-drill/pull/2
> Define syntax for logical plan and parser for logical plan
> ----------------------------------------------------------
>
> Key: DRILL-3
> URL: https://issues.apache.org/jira/browse/DRILL-3
> Project: Apache Drill
> Issue Type: Task
> Reporter: Ted Dunning
> Assignee: Jacques Nadeau
>
> Define the basic semantics of the logical plan and expression language.
> (Separating out the physical plan into a separate jira)
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