[JIRA] Created: (CAY-989) Garbage SQL generated for EJBQL subqueries

From: Andrus Adamchik (JIRA) ("Andrus)
Date: Sun Feb 24 2008 - 06:51:16 EST

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    Garbage SQL generated for EJBQL subqueries
    ------------------------------------------

                     Key: CAY-989
                     URL: https://issues.apache.org/cayenne/browse/CAY-989
                 Project: Cayenne
              Issue Type: Bug
              Components: Cayenne Core Library
        Affects Versions: 3.0
                Reporter: Andrus Adamchik
                Assignee: Andrus Adamchik
                 Fix For: 3.0

    Since EJBQL translator incorrectly reuses DISTINCT and WHERE buffers between the main query and subqueries, subqueries may end up generated incorrectly. E.g.:

    "SELECT p FROM Painting p"
                    + " WHERE p.estimatedPrice = ALL ("
                    + " SELECT MAX(p1.estimatedPrice) FROM Painting p1"
                    + ")"

    SELECT t0.PAINTING_TITLE AS ec0_0, t0.ARTIST_ID AS ec0_1, t0.PAINTING_DESCRIPTION AS ec0_2, t0.ESTIMATED_PRICE AS ec0_3, t0.GALLERY_ID AS ec0_4, t0.PAINTING_ID AS ec0_5 FROM PAINTING t0 WHERE t0.ESTIMATED_PRICE = ALL (SELECT MAX(t1.ESTIMATED_PRICE) FROM PAINTING t1 WHERE)

    (notice trailing WHERE...)

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