[teiid-issues] [JBoss JIRA] (TEIID-2987) MongoDB: No rows are returned when a function is used in a where clause

[RH Bugzilla Integration (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-2987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

RH Bugzilla Integration updated TEIID-2987:
-------------------------------------------

        Bugzilla Update: Perform
    Bugzilla References: https://bugzilla.redhat.com/show_bug.cgi?id=1105087


> MongoDB: No rows are returned when a function is used in a where clause
> -----------------------------------------------------------------------
>
>                 Key: TEIID-2987
>                 URL: https://issues.jboss.org/browse/TEIID-2987
>             Project: Teiid
>          Issue Type: Bug
>          Components: Misc. Connectors
>    Affects Versions: 8.4.1
>         Environment: Teiid 8.4.1
>            Reporter: Filip Elias
>            Assignee: Ramesh Reddy
>
> Teiid will return no rows when a function which is pushed down is used in a where clause.
> These queries should return few rows, but the result is empty:
> Query:
> SELECT intkey, stringnum FROM BQT1.SmallA WHERE concat(stringkey, stringnum) = '7-17' ORDER BY intkey
> Generated mongo command:
> {aggregate: "smalla", pipeline: [ { $match: { _m0: "7-17" } }, { $project: { c_0: "$INTKEY", c_1: "$STRINGNUM" } }, { $sort: { c_0: 1 } } ] }
> Query:
> select intKey from bqt1.smalla where intKey+intKey >20
> Generated mongo command:
> {aggregate: "smalla", pipeline: [ { $match: { _m0: { $gt: 20 } } }, { $project: { _m1: "$INTKEY" } } ] }



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