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Ferdinand Xu edited comment on PARQUET-41 at 3/9/15 6:21 AM:
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Hi [~alexlevenson] and [~antwnis], thank you for your comments.
I'd like to have a short summary for your summary. We should implement the BF
by thrift other than some unstable framework library.
Regards to the size of bloom filter, I think we should configure it from the
upper level since user can have a better understanding of the size of column
numbers. Any thought about the size configuration?
was (Author: ferd):
Hi [~alexlevenson] and [~antwnis], thank you for your comments.
I'd like to have a short summary for your summary. We should implement it with
thrift.
Regards to the size of bloom filter, I think we should configure it from the
upper level since user can have a better understanding of the size of column
numbers. Any thought about the size configuration?
> Add bloom filters to parquet statistics
> ---------------------------------------
>
> Key: PARQUET-41
> URL: https://issues.apache.org/jira/browse/PARQUET-41
> Project: Parquet
> Issue Type: New Feature
> Components: parquet-mr
> Reporter: Alex Levenson
> Assignee: ferdinand xu
> Labels: filter2
>
> For row groups with no dictionary, we could still produce a bloom filter.
> This could be very useful in filtering entire row groups.
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