iindyk opened a new pull request #12420: URL: https://github.com/apache/beam/pull/12420
Extending functionality of ApproximateQuantiles PTransform to calculate
quantiles of a data stream with custom weights. In case of weighted quantiles,
input PCollection is expected to contain tuples of elements with their weight.
Also adding add_inputs function to the corresponding CombineFn for efficient
processing of batched inputs.
------------------------
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