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https://issues.apache.org/jira/browse/PHOENIX-2196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14729121#comment-14729121
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Josh Mahonin commented on PHOENIX-2196:
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So essentially what happens is the field names go through the same
normalization process the query parser uses. Without surrounding quotes, the
column name will get capitalized, but with surrounding quotes, the column will
be passed through as-is.
For your specific use case, I think if your CSV headers are surrounded by
double quotes, they should get passed through with the case kept in-tact.
> phoenix-spark should automatically convert DataFrame field names to all caps
> ----------------------------------------------------------------------------
>
> Key: PHOENIX-2196
> URL: https://issues.apache.org/jira/browse/PHOENIX-2196
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Randy Gelhausen
> Assignee: Josh Mahonin
> Priority: Minor
> Attachments: PHOENIX-2196.patch
>
>
> phoenix-spark will fail to save a DF into a Phoenix table if the DataFrame's
> fields are not all capitalized. Since Phoenix internally capitalizes all
> column names, the DataFrame.save method should automatically capitalize DF
> field names as a convenience to the end user.
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