[NSE-979] Support reading parquet with case sensitive

[jackylee-ch]

What changes were proposed in this pull request?

This PR is trying to fix the problem with reading parquet with case sensitive column names. In our scenarios, we have case sensitive column names in parquet, such as Id7, and scan parquet with case insensitive mode, which means id7 whill be pushed down to source, and then we will get 'Id7 not exists'.

How was this patch tested?

unit tests and additional test.

[github-actions]

Thanks for opening a pull request!

Could you open an issue for this pull request on Github Issues?

https://github.com/oap-project/native-sql-engine/issues

Then could you also rename commit message and pull request title in the following format?

[NSE-${ISSUES_ID}] ${detailed message}

See also:

• Other pull requests

[github-actions]

#979

[PHILO-HE]

Thanks for your great work!

I note there are some similar code logic in ArrowPartitionReaderFactory#buildColumnarReader, which looks also lacking case insensitive handling. Right?

[jackylee-ch]

I note there are some similar code logic in ArrowPartitionReaderFactory#buildColumnarReader, which looks also lacking case insensitive handling. Right?

Yeap. And there will be some tests will be added for this PR.