[jira] [Created] (PARQUET-1191) Type.hashCode() takes originalType into account but Type.equals() does not

["Zoltan Ivanfi (JIRA)" <ji...@apache.org>]

Zoltan Ivanfi created PARQUET-1191:
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             Summary: Type.hashCode() takes originalType into account but Type.equals() does not
                 Key: PARQUET-1191
                 URL: https://issues.apache.org/jira/browse/PARQUET-1191
             Project: Parquet
          Issue Type: Bug
            Reporter: Zoltan Ivanfi


If two Type instances are equal according to equals() but have different logical types, then both of the following cases are possible:

* The two instances may accidentally have the same hash, which is consistent with the equals() method but is pure coincidence and has a very low probablility.
* The two instances may have different hashes and end up in different buckets of a hash map, leading to a situation where we can't find a value in the hash map despite that it's equals() would return true.



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