Allison Wang created SPARK-33038:
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Summary: AQE plan string should only display one plan when the
initial and the current plan are the same
Key: SPARK-33038
URL: https://issues.apache.org/jira/browse/SPARK-33038
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.1.0
Reporter: Allison Wang
Currently, the AQE plan string displays both the initial plan and the current
or the final plan. This can be redundant when the initial plan and the current
physical plan are exactly the same. For instance, the `EXPLAIN` command will
not actually execute the query, and thus the plan string will never change, but
currently, the plan string still shows both the current and the initial plan:
{code:java}
AdaptiveSparkPlan (8)
+- == Current Plan ==
Sort (7)
+- Exchange (6)
+- HashAggregate (5)
+- Exchange (4)
+- HashAggregate (3)
+- Filter (2)
+- Scan parquet default.explain_temp1 (1)
+- == Initial Plan ==
Sort (7)
+- Exchange (6)
+- HashAggregate (5)
+- Exchange (4)
+- HashAggregate (3)
+- Filter (2)
+- Scan parquet default.explain_temp1 (1)
{code}
When the initial and the current plan are the same, there should be only one
plan string displayed. For example
{code:java}
AdaptiveSparkPlan (8)
Sort (7)
+- Exchange (6)
+- HashAggregate (5)
+- Exchange (4)
+- HashAggregate (3)
+- Filter (2)
+- Scan parquet default.explain_temp1 (1){code}
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