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  1. IMPALA
  2. IMPALA-10457

Add a note that 'hash x range' and 'range x hash' partition for Kudu tables produce the same result

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    Details

    • Type: Documentation
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Docs
    • Labels:
      None
    • Epic Color:
      ghx-label-13

      Description

      I stumbled upon on a fact that in Impala prior to version 4 the syntax for CREATE TABLE doesn't allow specifying range x hash partition, the only acceptable syntax is hash x range, as reflected in IMPALA-7686.

      With knowledge on Kudu partitioning, it's rather self-obvious that hash x range and range x hash should result in the same layout of data across Kudu tablets, but it would be great to explicitly document that (probably, with the reference to this page https://kudu.apache.org/docs/schema_design.html#hash-range-partitioning-example ?).

      Probably, the best place to add the note is: https://impala.apache.org/docs/build/html/topics/impala_kudu.html#ariaid-title17

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            • Assignee:
              Unassigned
              Reporter:
              aserbin Alexey Serbin

              Dates

              • Created:
                Updated:

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