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changes.mady.by.user Lefty Leverenz

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changes.mady.by.user Szehon Ho

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Comment: Parquet column case sensitive fix in HIVE 7554

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  • Binary and date support are pending (HIVE-6384).
  • Timestamp, decimal, char and varchar are not supported in Hive releases 0.10.0 through 0.13.1, but Hive 0.14.0 adds support for timestamp (HIVE-6394), decimal (HIVE-6367), char and varchar (HIVE-7735).
  • Column rename is supported with use of the flag parquet.column.index.access, starting with release 0.14.0 (HIVE-6938).
  • Create Table AS SELECT (CTAS) is supported starting with release 0.13.0 (HIVE-6375).
  • Parquet column names were case sensitive (query has to use column case that matches exactly what is in the metastore), but became case insensitive as of Hive 0.14.0 (HIVE-7554).

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