liyunzhang_intel created PIG-5197:
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Summary: Replace IndexedKey with PigNullableWritable in spark
branch
Key: PIG-5197
URL: https://issues.apache.org/jira/browse/PIG-5197
Project: Pig
Issue Type: Sub-task
Reporter: liyunzhang_intel
The function of IndexedKey and PigNullableWritable is similar.
The difference between these two is IndexedKey contains Index,key while
PigNullableWritable contains index,key,value.
Besides,the comparators for PigNullableWritable have lot of conditions for the
different data types taken care of and IndexedKey can miss some of that. We can
try to replace IndexedKey with PigNullableWritable.
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