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  1. Data Management
  2. DM-3165

"SELECT DISTINCT foo FROM LSST.Filter AS f" shouldn't require a merge step

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    Details

    • Type: Bug
    • Status: Invalid
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: Qserv
    • Labels:
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      Description

      This query is non-chunked so the QuerySession.needMerge flag should be set to false

      (grep ticket number in core/ to get the unit test where this issue appear)

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            fritzm Fritz Mueller added a comment -

            According to Nate Pease [X], in the current design, all queries have a merge step (e.g. to accommodate column renaming). This suggested optimization is no longer relevant.

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            fritzm Fritz Mueller added a comment - According to Nate Pease [X] , in the current design, all queries have a merge step (e.g. to accommodate column renaming). This suggested optimization is no longer relevant.

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              Assignee:
              Unassigned Unassigned
              Reporter:
              jammes Fabrice Jammes
              Watchers:
              Fritz Mueller
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                Updated:
                Resolved:

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