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  1. MariaDB Server
  2. MDEV-38306

Optimizer support for Multi-Valued indexes over JSON data

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Details

    • Task
    • Status: Open (View Workflow)
    • Major
    • Resolution: Unresolved
    • 12.3
    • Optimizer
    • None

    Description

      After MDEV-25848 implements multi-value indexes, the optimizer could use those to perform efficient searches for JSON data.

      This will achieve either of the goals:

      Goal 1: index do searches like in MySQL:

      create index idx1 on  t1 ((cast(a->'$.arr' as unsigned array)));
      		 
      explain select * from t101 where 4 member of (a->'$.arr');

      Goal 2 Support index lookups for generic JSON predicates like 

      JSON_VALUE(js_column, '$.attribute_name') = 'value'

      WHERE column->json_attr = 'foo';

      Attachments

        Issue Links

          relates to

          New Feature - A new feature of the product, which has yet to be developed. MDEV-25848 Support for Multi-Valued Indexes

          • Critical - Crashes, loss of data, severe memory leak.
          • Open

          Task - A task that needs to be done. MDEV-37288 JSON Comparator: does MariaDB need one?

          • Major - Major loss of function.
          • Closed

          Activity

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              Unassigned Unassigned
              psergei Sergei Petrunia
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              Dates

                Created:
                Updated:

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