kings129 opened a new pull request #844: Spark read not fallback to fileSchema when indexColumnsWanted is empty URL: https://github.com/apache/hive/pull/844 Query "select count(*) from t" on parquet table read in all the data (all columns), which is not needed other than reading metadata. Don't know why this empty list check was added, please suggest if there're any other impact. JIRA: https://issues.apache.org/jira/browse/HIVE-22495#
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