datasketches-pig-1.1.0

This is a maintenance release to make this Apache Datasketches component for Apache Pig work with the latest versions of datasketches-java-3.1.0 and datasketches-memory-2.0.0

Apache Release 1.0.0-incubating

This is the initial release of Apache DataSketches-pig.

All of the java packages have been refactored to reflect "org.apache.datasketches..." and all of the files are headed with the Apache license header. The LICENSE, NOTICE, DISCLAIMER-WIP, and pom.xml files have all been updated.

Other than that, there are no other code changes.

sketches-pig-0.13.0

• Based on sketches-core-0.13.0
• Added CPC sketch UDFs
• Added KLL sketch UDFs
• Theta sketch Jaccard Similarity UDF

sketches-pig-0.11.0

Compatibility with sketches-core-0.11.0

sketches-pig-0.10.3: sketches-core-0.10.3

Updated dependency to use sketches-core-0.10.3

sketches-pig-0.10.2: update to sketches-core-0.10.2

This is a maintenance release to use the latest sketches-core-0.10.2

Sketches core 0.10.1, new Tuple sketch UDFs, performance improvement

• This is based on sketches-core-0.10.1 and memory-0.10.3
• New Tuple sketch UDFs: ArrayOfDoublesSketchesToPValueEstimates, ArrayOfDoublesSketchToMeans, ArrayOfDoublesSketchToVariances, ArrayOfDoublesSketchToEstimateAndErrorBounds, ArrayOfDoublesSketchToNumberOfRetainedEntries, ArrayOfDoublesSketchToQuantilesSketch
• Performance improvement: wrap() is used instead of heapify() in HLL and Quantiles UDFs

Sketches core 0.10.0, HLL sketch UDFs, sampling UDFs

• This is based on sketches-core-0.10.0 and memory-0.10.2
• HLL sketch UDFs
• Reservoir and VarOpt sampling UDFs

Align with core 0.8.2

• Fixed Memory shading problem. The shaded jar now includes both the shaded core and shaded memory code.

Align with core 0.7.0

• Quantiles:
  • Added generic base classes and concrete UDFs for string type
  • Added feature to GetQuantiles* to get quantiles given a number of evenly spaced fractions
  • Added GetK* UDFs
• Added support for default number of nominal entries in tuple sketch UDFs
• Output lower bound before upper bound in FrequentStringsSketchToEstimates
• Renamed Merge* UDFs to Union* to be consistent with naming conventions
• Code style and documentation improvements