Gabor Szadovszky created PARQUET-1472:
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Summary: Dictionary filter fails on FIXED_LEN_BYTE_ARRAY
Key: PARQUET-1472
URL: https://issues.apache.org/jira/browse/PARQUET-1472
Project: Parquet
Issue Type: Bug
Components: parquet-mr
Reporter: Gabor Szadovszky
Assignee: Gabor Szadovszky
DictonaryFilter does not handle FIXED_LEN_BYTE_ARRAY. Moreover,
[DictionaryFilter.expandFilter(ColumnChunkMetaData)|https://github.com/apache/parquet-mr/blob/dc61e510126aaa1a95a46fe39bf1529f394147e9/parquet-hadoop/src/main/java/org/apache/parquet/filter2/dictionarylevel/DictionaryFilter.java#L78]
returns an empty map instead of null therefore the row-group might be dropped
as the value seems to not being in the dictionary.
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