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  1. IMPALA
  2. IMPALA-4397

Codegen for compute stats query on 1K column table takes 4 minutes

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      Description

      Codegen of compute stats aggregation takes 4 minutes for a table with 1K columns

              CodeGen:(Total: 4m19s, non-child: 4m19s, % non-child: 100.00%)
                 - CodegenTime: 540.513ms
                 - CompileTime: 56s810ms
                 - LoadTime: 0.000ns
                 - ModuleBitcodeSize: 1.90 MB (1993816)
                 - NumFunctions: 14.03K (14033)
                 - NumInstructions: 265.60K (265603)
                 - OptimizationTime: 3m23s
                 - PrepareTime: 41.053ms
      

        Attachments

        1. VtuneTopDownTree.csv
          149 kB
          Mostafa Mokhtar
        2. Vtune-Bottom-Up.csv
          556 kB
          Mostafa Mokhtar
        3. CreateWideTable.sql
          350 kB
          Mostafa Mokhtar

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              • Assignee:
                tarmstrong Tim Armstrong
                Reporter:
                mmokhtar Mostafa Mokhtar
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                • Created:
                  Updated:
                  Resolved: