Github user jainaks commented on the issue:
https://github.com/apache/spark/pull/21320
> @jainaks What is the value of the Spark SQL configuration setting
spark.sql.caseSensitive when you run this query? Also, are you querying the
parquet file as part of a Hive metastore table or from a dataframe loaded with
the DataFrameReader.parquet method?
@mallman "spark.sql.caseSensitive" value is not being set and is left to
its default value as "false". We are querying the parquet file from a dataframe.
> Hi @jainaks. Thanks for your report. Do you have the same problem running
your test with this PR?
@mallman Yes, the issue with window functions is reproducible even with
this PR.
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