Uploaded image for project: 'IMPALA'
  1. IMPALA
  2. IMPALA-2649 improve incremental stats scalability
  3. IMPALA-6464

Impala 2.12 & 3.0 Docs: Extend "compute stats" syntax to support a list of columnss

    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: Impala 3.0, Impala 2.12.0
    • Fix Version/s: Impala 3.0, Impala 2.12.0
    • Component/s: Docs
    • Labels:
      None

      Description

      • Modifies COMPUTE STATS for the non-incremental case. 
        The change allows an optional column list to be specified for a given table. 
        Example: compute stats my_table (col_1, col_2) ... 
        The column list specifies which columns will have stats computed. If a column is specified that is invalid, an error will be returned. Invalid columns are ones that are not part of the specified table, are a complex type, or for hdfs tables, are a partitioning key. If no columns are specified, e.g., "( )", stats will not be computed for any columns.
         

      https://gerrit.cloudera.org/#/c/10070/

        Attachments

          Activity

            People

            • Assignee:
              arodoni_cloudera Alex Rodoni
              Reporter:
              arodoni_cloudera Alex Rodoni
            • Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: