Srinivas Rishindra Pothireddi created SPARK-31377:
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Summary: Add missing unit tests for "number of output rows" metric
for joins in SQLMetricsSuite
Key: SPARK-31377
URL: https://issues.apache.org/jira/browse/SPARK-31377
Project: Spark
Issue Type: Improvement
Components: SQL, Tests
Affects Versions: 3.0.0
Reporter: Srinivas Rishindra Pothireddi
For some combinations of join algorithm and join types there are no unit tests
for the "number of output rows" metric.
For Inner join and BroadcastHashJoin there is code in unit tests with code
generation enabled. There are no tests for the "number of output rows" metric
with code generation disabled.
A list of missing unit tests include the following.
* SortMergeJoin: ExistenceJoin
* ShuffledHashJoin: OuterJoin, ReftOuter, RightOuter, LeftAnti, LeftSemi,
ExistenseJoin
* BroadcastNestedLoopJoin: RightOuter, ExistenceJoin, InnerJoin
* BroadcastHashJoin: LeftAnti, ExistenceJoin
* All the join types for SortMergeJoin and BroadcastHashJoin with code
generation turned off.
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