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  1. Hive
  2. HIVE-3472

Build An Analytical SQL Engine for MapReduce

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Details

    • New Feature
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 0.10.0
    • None
    • None
    • None

    Description

      While there are continuous efforts in extending Hive’s SQL support (e.g., see some recent examples such as HIVE-2005 and HIVE-2810), many widely used SQL constructs are still not supported in HiveQL, such as selecting from multiple tables, subquery in WHERE clauses, etc.

      We propose to build a SQL-92 full compatible engine (for MapReduce based analytical query processing) as an extension to Hive.

      The SQL frontend will co-exist with the HiveQL frontend; consequently, one can mix SQL and HiveQL statements in their queries (switching between HiveQL mode and SQL-92 mode using a “hive.ql.mode” parameter before each query statement). This way useful Hive extensions are still accessible to users.

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        1. SQL-design.pdf
          267 kB
          Shane Huang

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              Unassigned Unassigned
              shane.huang Shane Huang
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                Created:
                Updated: