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  1. Teiid
  2. TEIID-5109

Set operations and parenthesis

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      Description

      Using Teiid 9.2.2 with postgresql, I issue a query structured like this:

      (a
      UNION ALL
      b
      UNION ALL
      c)
      INTERSECT
      d

      All queries are from a single database.
      This query does not give back the expected result.

      In the plan, I see the query printed with no parenthesis around the unions:
      a UNION ALL b UNION ALL c INTERSECT d

      This gives the same result as the query submitted with no parens in it (the intersect of c and d is unioned with a union b.

      The expepeted result is to preserve the paren so that the intersect is performed against the union of all three tables.

      As a note, using UNION instead of UNION ALL did not preserve the parens, either.

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                • Assignee:
                  shawkins Steven Hawkins
                  Reporter:
                  mike_higgins Mike Higgins
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