Unable to create bloomfilter when writing duplicates values for a field
Opened this issue · 2 comments
I'm unable to create a bloomfilter for a field, when I perform writes with repeating values. The bloomfilter returned is null when I try to read such a parquet file. If there are no repeating values, the bloomfilter is created without any issue.
The working and non-working case in captured in the below repo
https://github.com/MaheshGPai/parquet-mr-test
https://github.com/MaheshGPai/parquet-mr-test/blob/main/src/test/java/com/mahesh/test/AppTest.java#L73
Reporter: Mahesh Pai
Note: This issue was originally created as PARQUET-2484. Please see the migration documentation for further details.
Mahesh Pai:
Thanks @wgtmac!
When I disable dictionary encoding the bloomfilter is getting created. But I'm curious as to why this works when distinct values are written. With distinct values and dictionary encoding enabled, the writer is generating the bloomfilter