Eric5553 commented on a change in pull request #27368: [SPARK-30651][SQL] Add
detailed information for Aggregate operators in EXPLAIN FORMATTED
URL: https://github.com/apache/spark/pull/27368#discussion_r375857072
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File path: sql/core/src/test/resources/sql-tests/results/explain.sql.out
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@@ -76,12 +84,20 @@ Input : [key#x, val#x]
(5) HashAggregate [codegen id : 1]
Input: [key#x, val#x]
+Keys: [key#x]
+Functions: [partial_max(val#x)]
+FuncBufferAttrs: [max#x]
+Results: [key#x, max#x]
(6) Exchange
Input: [key#x, max#x]
(7) HashAggregate [codegen id : 2]
Input: [key#x, max#x]
+Keys: [key#x]
+Functions: [max(val#x)]
+FuncBufferAttrs: [max#x]
+Results: [key#x, max(val#x)#x AS max(val)#x]
Review comment:
Never mind, I just learnt a lot from it :-)
Replaced with `Aggregate Attributes` in
9aecfaff68aeaad4b17da2fe9e640d4c76d177a8. I leave
`HashAggregateExec.aggregateBufferAttributes` at the original place in this PR,
although it can be abstract to base class.
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