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changes.mady.by.user Carl Steinbach

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changes.mady.by.user John Sichi

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Before proceeding, please read Hive- StorageHandlers for an overview of the generic storage handler framework on which HBase integration depends.

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  • more flexible column mapping (HIVE-806, HIVE-1245)
  • default column mapping in cases where no mapping spec is given
  • filter pushdown and indexing (see Hive- FilterPushdownDev and Hive- IndexDev)
  • expose timestamp attribute, possibly also with support for treating it as a partition key
  • allow per-table hbase.master configuration
  • run profiler and minimize any per-row overhead in column mapping
  • user defined routines for lookups and data loads via HBase client API (HIVE-758 and HIVE-791)
  • logging is very noisy, with a lot of spurious exceptions; investigate these and either fix their cause or squelch them

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