Takeshi Yamamuro created SPARK-32704:
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Summary: Logging plan changes for execution
Key: SPARK-32704
URL: https://issues.apache.org/jira/browse/SPARK-32704
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.1.0
Reporter: Takeshi Yamamuro
Since we only log plan changes for analyzer/optimizer now, this ticket targets
adding code to log plan changes in the preparation phase in QueryExecution for
execution.
{code}
scala> spark.sql("SET spark.sql.optimizer.planChangeLog.level=WARN")
scala> spark.range(10).groupBy("id").count().queryExecution.executedPlan
...
20/08/26 09:32:36 WARN PlanChangeLogger:
=== Applying Rule org.apache.spark.sql.execution.CollapseCodegenStages ===
!HashAggregate(keys=[id#19L], functions=[count(1)], output=[id#19L, count#23L])
*(1) HashAggregate(keys=[id#19L], functions=[count(1)],
output=[id#19L, count#23L])
!+- HashAggregate(keys=[id#19L], functions=[partial_count(1)], output=[id#19L,
count#27L]) +- *(1) HashAggregate(keys=[id#19L],
functions=[partial_count(1)], output=[id#19L, count#27L])
! +- Range (0, 10, step=1, splits=4)
+- *(1) Range (0, 10, step=1, splits=4)
20/08/26 09:32:36 WARN PlanChangeLogger:
=== Result of Batch Preparations ===
!HashAggregate(keys=[id#19L], functions=[count(1)], output=[id#19L, count#23L])
*(1) HashAggregate(keys=[id#19L], functions=[count(1)],
output=[id#19L, count#23L])
!+- HashAggregate(keys=[id#19L], functions=[partial_count(1)], output=[id#19L,
count#27L]) +- *(1) HashAggregate(keys=[id#19L],
functions=[partial_count(1)], output=[id#19L, count#27L])
! +- Range (0, 10, step=1, splits=4)
{code}
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