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  1. Calcite
  2. CALCITE-2867 JSON support
  3. CALCITE-2670

Combine similar JSON aggregate functions in operator table

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    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.18.0
    • Component/s: core
    • Labels:
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      Description

      In current code master of Calcite, operator JSON_ARRAYAGG and JSON_OBJECTAGG are separated to JSON_ARRAYAGG_NULL_ON_NULL, JSON_ARRAYAGG_ABSENT_ON_NULL, JSON_OBJECTAGG_NULL_ON_NULL and JSON_OBJECTAGG_ABSENT_ON_NULL in SqlStdOperatorTable.java. This is OK for now, but may deliver more difficulty on extending syntax of JSON_ARRAYAGG and JSON_OBJECTAGG and on implementing logical plan by adapters.

      This is basically to combine the 4 operators to 2, this is a improvement list:

      1. Combine JSON_ARRAYAGG_NULL_ON_NULL and JSON_ARRAYAGG_ABSENT_ON_NULL;
      2. Combine JSON_OBJECTAGG_NULL_ON_NULL and JSON_OBJECTAGG_ABSENT_ON_NULL;
      3. SYMBOL type Support for JavaTypeFactoryImpl#getJavaClass This is to generate Enum java type for SYMBOL;
      4. Add SQL-to-Rel test cases for JSON functions.

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              • Assignee:
                julianhyde Julian Hyde
                Reporter:
                zhztheplayer Hongze Zhang
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                • Created:
                  Updated:
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