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  1. HPCC
  2. HPCC-21363

Optimize HqlGram::cloneInheritedAttributes

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Not specified
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 7.0.12
    • Component/s: Code Generator
    • Labels:
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      Description

      Noticed while profiling a query that the call to quickFullReplaceExpression() will not common up substitutions between symbols.  Moving the expression replacer into the enclosing loop could have a big effect.

      Initial tests show 20% speed up parsing some queries with complex MODULE attributes. (e.g. uk26)

       

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            • Assignee:
              ghalliday Gavin Halliday
              Reporter:
              ghalliday Gavin Halliday
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              • Created:
                Updated:
                Resolved: