Maxim Gekk created SPARK-30564:
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Summary: Regression in the wide schema benchmark
Key: SPARK-30564
URL: https://issues.apache.org/jira/browse/SPARK-30564
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 3.0.0
Reporter: Maxim Gekk
New results of WideSchemaBenchmark generated in the PR:
https://github.com/apache/spark/pull/27078 show regressions up to 2 times.
Before:
{code}
2500 select expressions 103 / 107 0.0
102962705.0 0.1X
{code}
https://github.com/apache/spark/pull/27078/files#diff-8d27bbf2f73a68bf0c2025f0702f7332L11
After:
{code}
2500 select expressions 211 214
4 0.0 210927791.0 0.0X
{code}
https://github.com/apache/spark/pull/27078/files#diff-8d27bbf2f73a68bf0c2025f0702f7332R11
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