Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • Neo.next
    • secondary-index

    Description

      Scan an index in reverse collation order

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          Activity

            siri Sriram Melkote (Inactive) added a comment - - edited

            Folks - we're not able to find a good way to make this work well for Plasma (DGM). For Nitro (MOI), we are considering one approach, but it will be O(n log n) complexity. We're still to get to this item properly, but for now, I want to flag it as an at-risk item. Note that we're building CBIDXT-400 however.

            siri Sriram Melkote (Inactive) added a comment - - edited Folks - we're not able to find a good way to make this work well for Plasma (DGM). For Nitro (MOI), we are considering one approach, but it will be O(n log n) complexity. We're still to get to this item properly, but for now, I want to flag it as an at-risk item. Note that we're building CBIDXT-400 however.

            @Siri, thanks for letting us know early. 

            tai.tran Tai Tran (Inactive) added a comment - @Siri, thanks for letting us know early. 

            Sriram Melkote: We just created a new CBSE on this one.

            Customer has to create both indexes (ASC & DESC) to get acceptable performances.
            We should allow N1QL to force scanning directions and then get good performances; most of all while running a COUNT for instance.

            What's the latest update on the roadmap for this one; it's from 2016

            ludovic.dufrenoy Ludovic Dufrenoy (Inactive) added a comment - - edited Sriram Melkote : We just created a new CBSE on this one. Customer has to create both indexes (ASC & DESC) to get acceptable performances. We should allow N1QL to force scanning directions and then get good performances; most of all while running a COUNT for instance. What's the latest update on the roadmap for this one; it's from 2016

            Hi Ludovic Dufrenoy, I've moved this to MB for better visibility and requesting Keshav Murthy John Liang and Sarath Lakshman for further inputs.

            siri Sriram Melkote (Inactive) added a comment - Hi Ludovic Dufrenoy , I've moved this to MB for better visibility and requesting Keshav Murthy John Liang and Sarath Lakshman for further inputs.

            Discussed during GSI scrum today. Proposing to move CheshireCat.Next to keep the focus on Collections.

            jeelan.poola Jeelan Poola added a comment - Discussed during GSI scrum today. Proposing to move CheshireCat.Next to keep the focus on Collections.

            Hi,

            Any update on this one?

            Thanks

            fabrice.leray Fabrice Leray added a comment - Hi, Any update on this one? Thanks

            People

              binh.le Binh Le
              siri Sriram Melkote (Inactive)
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              Dates

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                Updated:

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