Fixing empty count result for parquet files with nested schema #1130
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kgyrtkirk
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This PR fixes the bug HIVE-21709 -- https://issues.apache.org/jira/browse/HIVE-21709
Due to column order mismatch, Hive fails to parse parquet file with nested schema. The reason for the mismatch happens in these two files because using HashSet changes the order of the columns from the actual table definition. As a result we read wrong values for the wrong columns leading to the bug