liyunzhang_intel created PIG-5044:
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Summary: Create SparlCompiler#getSamplingJob in spark mode
Key: PIG-5044
URL: https://issues.apache.org/jira/browse/PIG-5044
Project: Pig
Issue Type: Sub-task
Reporter: liyunzhang_intel
Assignee: liyunzhang_intel
Like MRCompiler#getSamplingJob, we also need a function like that to sample
data from a file, sort sampling data and generate output by
UDF(org.apache.pig.impl.builtin.FindQuantiles).
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