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https://issues.apache.org/jira/browse/DRILL-8185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17568259#comment-17568259
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Charles Givre commented on DRILL-8185:
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Hey [~Paul.Rogers] ,
Just as an FYSA, we've been doing some work to consolidate and improve the
overall handling of JSON in Drill. (DRILL-8241) The overarching goal being to
remove all the deprecated JSON readers and use the EVF2 JSON reader throughout
Drill. [~vitalii] has been working on DRILL-5955 with the goal being to
"re-enable" union vectors in the EVF2. He has a draft PR but I'm not sure how
close we are to completion.
We've done some work to also make the JSON configuration more granular and
introduced a JSONOptions class which standardizes the JSON configuration for
all plugins that use JSON. (DRILL-8243)
> EVF 2 doen't handle map arrays or nested maps
> ---------------------------------------------
>
> Key: DRILL-8185
> URL: https://issues.apache.org/jira/browse/DRILL-8185
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.20.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Priority: Major
> Fix For: 2.0.0
>
>
> When converting Avro, Luoc found two bugs in how EVF 2 (the projection
> mechanism) handles map array and nested maps
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