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https://issues.apache.org/jira/browse/DRILL-7972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17381604#comment-17381604
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ASF GitHub Bot commented on DRILL-7972:
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vvysotskyi opened a new pull request #2275:
URL: https://github.com/apache/drill/pull/2275
# [DRILL-7972](https://issues.apache.org/jira/browse/DRILL-7972):
ClassCastException when joining RDBMS and Elasticsearch tables
## Description
Updated `JdbcIntermediatePrelConverterRule` and
`EnumerableIntermediatePrelConverterRule` to consider the convention of the
input rel node when applying the rule, so now
`EnumerableIntermediatePrelConverterRule` cannot be applied to `VertexDrel` rel
node that has input with JDBC convention and vise versa.
Improved `FragmentContextImpl` to allow returning full root schema for both
root and non-root fragments, since schema may be used when reading "enumerable"
plugins.
## Documentation
NA
## Testing
Checked manually, no unit test added since the issue may be reproduced only
with two different storage plugins.
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> ClassCastException when joining RDBMS and Elasticsearch tables
> --------------------------------------------------------------
>
> Key: DRILL-7972
> URL: https://issues.apache.org/jira/browse/DRILL-7972
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.19.0
> Reporter: Vova Vysotskyi
> Assignee: Vova Vysotskyi
> Priority: Major
> Fix For: 1.20.0
>
>
> See details here: https://github.com/apache/drill/issues/2274
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