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https://issues.apache.org/jira/browse/DRILL-4733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15340802#comment-15340802
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Zelaine Fong commented on DRILL-4733:
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The commit id [~rkins] has referenced corresponds to DRILL-3474. That Jira
added new virtual columns. As a result of that change, are we now reading more
columns than necessary, resulting in the error?
Cc: [~arina]
> max(dir0) reading more columns than necessary
> ---------------------------------------------
>
> Key: DRILL-4733
> URL: https://issues.apache.org/jira/browse/DRILL-4733
> Project: Apache Drill
> Issue Type: Bug
> Components: Query Planning & Optimization, Storage - Parquet
> Affects Versions: 1.7.0
> Reporter: Rahul Challapalli
> Priority: Critical
> Attachments: bug.tgz
>
>
> The below query started to fail from this commit :
> 3209886a8548eea4a2f74c059542672f8665b8d2
> {code}
> select max(dir0) from dfs.`/drill/testdata/bug/2016`;
> Error: UNSUPPORTED_OPERATION ERROR: Streaming aggregate does not support
> schema changes
> Fragment 0:0
> [Error Id: b0060205-e9a6-428a-9803-7b4312b2c6f4 on qa-node190.qa.lab:31010]
> (state=,code=0)
> {code}
> The sub-folders contains files which do have schema change for one column
> "contributions" (int32 vs double). However prior to this commit we did not
> fail in the scenario. Log files and test data are attached
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