Uploaded image for project: 'MariaDB ColumnStore'
  1. MariaDB ColumnStore
  2. MCOL-4575

Hash table performance for collation aware DISTINCT

    XMLWordPrintable

    Details

    • Type: Bug
    • Status: Open (View Workflow)
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 6.1.1
    • Fix Version/s: 6.3.1
    • Component/s: ExeMgr, PrimProc
    • Labels:
      None

      Description

      When we fixed MCOL-4065 DISTINCT is case sensitive, we introduced a perfermance degredation. This has been patched for 5.5.2, but a more correct and faster algorithm has been proposed. This Jira is to track work on that proposal.

        Attachments

          Issue Links

            Activity

              People

              Assignee:
              drrtuy Roman
              Reporter:
              David.Hall David Hall
              Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

                Dates

                Created:
                Updated:

                  Git Integration