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  1. Calcite
  2. CALCITE-2847

Optimize global LOOKAHEAD for SQL parsers

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.20.0
    • Component/s: core

      Description

      Currently global LOOKAHEAD is set to 2 for the built-in SQL parsers[1], we'd like to optimize LOOKAHEAD to 1 to enable performance enhancement if possible.

      [1]https://github.com/apache/calcite/blob/883666929478aabe07ee5b9e572c43a6f1a703e2/core/pom.xml#L304

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            • Assignee:
              zhztheplayer Hongze Zhang
              Reporter:
              zhztheplayer Hongze Zhang
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