Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-80761

[CQF] Efficient lowering of sampling plans to SBE

    XMLWordPrintableJSON

Details

    • Icon: Improvement Improvement
    • Resolution: Won't Fix
    • Icon: Major - P3 Major - P3
    • None
    • None
    • None
    • Query Optimization

    Description

       

      • Create a custom lowering transport for sampling queries.
      • Add handlers for
      • PhysScan
      • Eval
      • Filter
      • Limit
      • NLJ
      • No use of cascades properties: will need to make use of FieldProjectionMap of sargable node.
      • Use SBEExpressionLowering to lower expressions directly which hang off of Filter and Eval nodes.
      • Add a node that counts on top (group)
      • might be simpler to do during this lowering

      Attachments

        Activity

          People

            svilen.mihaylov@mongodb.com Svilen Mihaylov (Inactive)
            svilen.mihaylov@mongodb.com Svilen Mihaylov (Inactive)
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved: