[teiid-issues] [JBoss JIRA] Resolved: (TEIID-695) Equality comparison of JoinPredicate returns true even when JoinPredicate criteria is different

[Larry O'Leary (JIRA)]

     [ https://jira.jboss.org/jira/browse/TEIID-695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Larry O'Leary resolved TEIID-695.
---------------------------------

    Resolution: Done


> Equality comparison of JoinPredicate returns true even when JoinPredicate criteria is different
> -----------------------------------------------------------------------------------------------
>
>                 Key: TEIID-695
>                 URL: https://jira.jboss.org/jira/browse/TEIID-695
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: 6.0.0, 6.1.0, 6.2.0
>            Reporter: Larry O'Leary
>            Assignee: Larry O'Leary
>            Priority: Minor
>             Fix For: 6.2.0
>
>         Attachments: mylyn-context.zip
>
>   Original Estimate: 15 minutes
>  Remaining Estimate: 15 minutes
>
> When comparing the following command objects the commands evaluate as equal when performing c1.equals(c2) even though the criteria is different in the two commands:
> c1 = SELECT bqt1.smalla.intkey, bqt1.smallb.intkey, bqt1.smalla.intnum, bqt1.smallb.intnum FROM bqt1.smalla LEFT OUTER JOIN bqt1.smallb ON bqt1.smalla.intkey = bqt1.smallb.intkey AND bqt1.smallb.intnum = 1
> c2 = SELECT bqt1.smalla.intkey, bqt1.smallb.intkey, bqt1.smalla.intnum, bqt1.smallb.intnum FROM bqt1.smalla LEFT OUTER JOIN bqt1.smallb ON bqt1.smalla.intkey = bqt1.smallb.intkey
> This is due to the method com.metamatrix.query.sql.lang.JoinPredicate.equals(Object obj) referencing itself when getting the criteria from itself and the obj being passed in:
> ...
> List thisCrit = this.getJoinCriteria();
> ...
> List otherCrit = this.getJoinCriteria();
> ...

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