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  1. Calcite
  2. CALCITE-1057

Add RelMetadataProvider parameter to standard planner Programs

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.6.0
    • Component/s: None
    • Labels:
      None

      Description

      The Programs class has a static method standard() used by the default Calcite driver. So far Calcite-Phoenix is using the same sql prepare logic with some slight customization, like plugging in a set of its own rules. The static standard(), though, does not work properly for Phoenix since some sub-programs it returns are initiated with the default RelMetadataProvider while Phoenix needs to plug-in its own, otherwise it just could not work.

        /** Program that converts filters and projects to {@link Calc}s. */
        public static final Program CALC_PROGRAM =
            hep(CALC_RULES, true, new DefaultRelMetadataProvider());
      
        /** Program that expands sub-queries. */
        public static final Program SUB_QUERY_PROGRAM =
            hep(
                ImmutableList.of((RelOptRule) SubQueryRemoveRule.FILTER,
                    SubQueryRemoveRule.PROJECT,
                    SubQueryRemoveRule.JOIN), true, new DefaultRelMetadataProvider());
      

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              • Assignee:
                maryannxue Maryann Xue
                Reporter:
                maryannxue Maryann Xue
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                • Created:
                  Updated:
                  Resolved: