[teiid-issues] [JBoss JIRA] (TEIID-5319) SAP IQ translator wrong pushdown of query with multiple JOINs

[RH Bugzilla Integration (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-5319?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

RH Bugzilla Integration updated TEIID-5319:
-------------------------------------------
    Bugzilla References: https://bugzilla.redhat.com/show_bug.cgi?id=1569509
        Bugzilla Update: Perform


> SAP IQ translator wrong pushdown of query with multiple JOINs
> -------------------------------------------------------------
>
>                 Key: TEIID-5319
>                 URL: https://issues.jboss.org/browse/TEIID-5319
>             Project: Teiid
>          Issue Type: Bug
>          Components: Misc. Connectors
>    Affects Versions: 8.12.13.6_4
>            Reporter: Jan Stastny
>            Assignee: Steven Hawkins
>            Priority: Critical
>
> For a query:
> {code:sql}
> SELECT BQT1.SmallA.IntKey AS SmallA_IntKey, BQT2.MediumB.IntKey AS MediumB_IntKey, BQT2.LargeB.IntKey AS LargeB_IntKey
> FROM
>     (
>         BQT1.SmallA LEFT OUTER JOIN BQT2.MediumB
>              ON BQT1.SmallA.IntKey = BQT2.MediumB.IntKey
>     )
>     RIGHT OUTER JOIN BQT2.LargeB
>          ON BQT2.MediumB.IntKey = BQT2.LargeB.IntKey
> WHERE BQT2.LargeB.IntKey < 1500
> {code}
> The following source command is pushed to SAP IQ:
> {code:sql}
> SELECT g_1."intkey" AS c_0, g_2."intkey" AS c_1, g_0."intkey" AS c_2
> FROM
>     "bqt-server"."dvqe"."LargeB" AS g_0 
>     LEFT OUTER JOIN
>     "bqt-server"."dvqe"."SmallA" AS g_1
>     INNER JOIN "bqt-server"."dvqe"."MediumB" AS g_2
>     ON g_1."intkey" = g_2."intkey"
>     ON g_2."intkey" = g_0."intkey"
> AND g_2."intkey" < 1500
> WHERE g_0."intkey" < 1500
> {code}
> Which results in parsing error.



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