Can I use… with recursive (top level)


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  1. Without keyword recursive
  2. No join in recursive branch—use comma-join (,)
  3. Without column list: WITH RECURSIVE query_name AS (SELECT…)

The with recursive clause allows a query to refer to its own output:

WITH RECURSIVE query_name (column_name, …) AS (
   SELECT …
     FROM …
UNION ALL
   SELECT …
     FROM query_name -- <= Note the self-reference here
) [, …]
SELECT …
  FROM query_name

Normative References

The with recursive clause is defined in ISO/IEC 9075:2016-2 as part of optional feature T131, “Recursive query”.

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