Wenchen Fan 109061f7ad [SPARK-12936][SQL] Initial bloom filter implementation ... This PR adds an initial implementation of bloom filter in the newly added sketch module. The implementation is based on the [`BloomFilter` class in guava](https://code.google.com/p/guava-libraries/source/browse/guava/src/com/google/common/hash/BloomFilter.java). Some difference from the design doc: * expose `bitSize` instead of `sizeInBytes` to user. * always need the `expectedInsertions` parameter when create bloom filter. Author: Wenchen Fan <wenchen@databricks.com> Closes #10883 from cloud-fan/bloom-filter.		2016-01-25 17:58:11 -08:00
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sketch	[SPARK-12936][SQL] Initial bloom filter implementation	2016-01-25 17:58:11 -08:00