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  1. Calcite
  2. CALCITE-2847

Optimize global LOOKAHEAD for SQL parsers

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 1.20.0
    • 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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            zhztheplayer Hongze Zhang
            zhztheplayer Hongze Zhang
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