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https://issues.apache.org/jira/browse/PARQUET-2331?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17750901#comment-17750901
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ASF GitHub Bot commented on PARQUET-2331:
-----------------------------------------
sekikn opened a new pull request, #1129:
URL: https://github.com/apache/parquet-mr/pull/1129
Make sure you have checked _all_ steps below.
### Jira
- [x] My PR addresses the following [Parquet
Jira](https://issues.apache.org/jira/browse/PARQUET/) issues and references
them in the PR title. For example, "PARQUET-1234: My Parquet PR"
- https://issues.apache.org/jira/browse/PARQUET-2331
- In case you are adding a dependency, check if the license complies with
the [ASF 3rd Party License
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### Tests
- [x] My PR adds the following unit tests __OR__ does not need testing for
this extremely good reason:
This PR adds the following tests in ConvertCSVCommandTest:
* testConvertCSVCommandWithMultipleInput
* testConvertCSVCommandWithDifferentSchemas
### Commits
- [x] My commits all reference Jira issues in their subject lines. In
addition, my commits follow the guidelines from "[How to write a good git
commit message](http://chris.beams.io/posts/git-commit/)":
1. Subject is separated from body by a blank line
1. Subject is limited to 50 characters (not including Jira issue reference)
1. Subject does not end with a period
1. Subject uses the imperative mood ("add", not "adding")
1. Body wraps at 72 characters
1. Body explains "what" and "why", not "how"
### Documentation
- [x] In case of new functionality, my PR adds documentation that describes
how to use it.
- All the public functions and the classes in the PR contain Javadoc that
explain what it does
> Allow convert-csv to take multiple input files
> ----------------------------------------------
>
> Key: PARQUET-2331
> URL: https://issues.apache.org/jira/browse/PARQUET-2331
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-cli
> Reporter: Kengo Seki
> Assignee: Kengo Seki
> Priority: Major
>
> Recently, I had to merge many CSV files into a Parquet file. parquet-cli's
> convert-csv only takes one CSV file, while rewrite takes multiple Parquet (or
> Avro) files. So I first converted CSVs into Parquets one by one, then merge
> them into one file.
> I think it'd be useful if convert-csv itself had such a merging feature.
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