GitHub user redoak-thomas created a discussion: Will order be preserved when 
writing/reading a parquet file with ordered dictionaries?

If I write a table to a parquet that has a dictionary with ordered=True and the 
dictionary does not exceed the size limit will all of the categories always be 
read back in in the same order? If the parquet file is written in multiple row 
groups will each dictionary of the row groups be the same or does it remove 
values that are not present in that row group? Thank you.

GitHub link: https://github.com/apache/arrow/discussions/49508

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