eaton created SPARK-21807:
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Summary: The getAliasedConstraints function in LogicalPlan will
take a long time when number of expressions is greater than 100
Key: SPARK-21807
URL: https://issues.apache.org/jira/browse/SPARK-21807
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.2.0
Reporter: eaton
The getAliasedConstraints fuction in LogicalPlan.scala will clone the
expression set when an element added,
and it will take a long time.
Before modified, the cost of getAliasedConstraints is:
100 expressions: 41 seconds
150 expressions: 466 seconds
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