[teiid-issues] [JBoss JIRA] (TEIID-4510) JDG Complex POJO 1-n relationship wrong results when joining parent and child table

[Van Halbert (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-4510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13306576#comment-13306576 ] 

Van Halbert commented on TEIID-4510:
------------------------------------

I'm glad you didn't use metadata import in this case.    But, unfortunately, on the surface (until I can dig in) this would appear to be a JDG issue, because the only difference in the testing is the JDG descriptor that is used to configure the JDG schema.  And that's provided directly (as is) to JDG when the cache container is configured in the connector.

> JDG Complex POJO 1-n relationship wrong results when joining parent and child table
> -----------------------------------------------------------------------------------
>
>                 Key: TEIID-4510
>                 URL: https://issues.jboss.org/browse/TEIID-4510
>             Project: Teiid
>          Issue Type: Bug
>          Components: Misc. Connectors
>    Affects Versions: 8.12.6.6_3
>            Reporter: Jan Stastny
>            Assignee: Steven Hawkins
>            Priority: Blocker
>
> When using infinispan-cache-dsl translator to access JDG cache incorrect results are returned for joins between the parent and child table.
> POJO proto schema:
> {code:plain}
> package org.jboss.qe.jdg.remote.protobuf.complex;
> /* @Indexed */
> message Person {
>     
>     /* @IndexedField(index=true, store=false) */
>     required int32 id = 1;
>     /* @IndexedField */
>     required string name = 2;
>     
>     /* @IndexedField */
>     optional string email = 3;
>     
>     /* @IndexedField(index=true, store=false) */
>     repeated PhoneNumber phones = 4;
>     /* @Indexed */
>     message Address {
>         /* @IndexedField */
>         required string Address = 1;
>         
>         /* @IndexedField(index=true, store=false) */
>         required string City = 2;
>         
>         /* @IndexedField(index=true, store=false) */
>         required string State = 3;
>     }
>     /* @IndexedField(index=true, store=false) */
>     optional Address address = 5;
> }
> /* @Indexed */
> message PhoneNumber {
>     /* @IndexedField */
>     required string number = 1;
> }
> {code}
> Source metadata:
> {code:sql}
> CREATE FOREIGN TABLE Address (
>     Address string NOT NULL PRIMARY KEY OPTIONS (NAMEINSOURCE 'address.Address', SEARCHABLE 'Searchable', NATIVE_TYPE 'java.lang.String'),
>     City string NOT NULL OPTIONS (NAMEINSOURCE 'address.City', SEARCHABLE 'Searchable', NATIVE_TYPE 'java.lang.String'),
>     State string NOT NULL OPTIONS (NAMEINSOURCE 'address.State', SEARCHABLE 'Searchable', NATIVE_TYPE 'java.lang.String'),
>     id integer NOT NULL OPTIONS (NAMEINSOURCE 'id', SELECTABLE TRUE, SEARCHABLE 'Searchable', NATIVE_TYPE 'int'),
>     CONSTRAINT FK_PERSON FOREIGN KEY(id) REFERENCES Person (id) OPTIONS (NAMEINSOURCE 'address')
> ) OPTIONS (UPDATABLE TRUE);
> CREATE FOREIGN TABLE Person (
>     id integer NOT NULL OPTIONS (NAMEINSOURCE 'id', SEARCHABLE 'Searchable', NATIVE_TYPE 'int'),
>     name string NOT NULL OPTIONS (NAMEINSOURCE 'name', SEARCHABLE 'Searchable', NATIVE_TYPE 'java.lang.String'),
>     email string OPTIONS (NAMEINSOURCE 'email', SEARCHABLE 'Searchable', NATIVE_TYPE 'java.lang.String'),
>     CONSTRAINT PK_ID PRIMARY KEY(id)
> ) OPTIONS (UPDATABLE TRUE);
> CREATE FOREIGN TABLE PhoneNumber (
>     number string NOT NULL PRIMARY KEY OPTIONS (NAMEINSOURCE 'phones.number', SEARCHABLE 'Searchable', NATIVE_TYPE 'java.lang.String'),
>     id integer NOT NULL OPTIONS (NAMEINSOURCE 'id', SELECTABLE TRUE, SEARCHABLE 'Searchable', NATIVE_TYPE 'int'),
>     CONSTRAINT FK_PERSON FOREIGN KEY(id) REFERENCES Person (id) OPTIONS (NAMEINSOURCE 'phones')
> ) OPTIONS (UPDATABLE TRUE);
> {code}
> Tested scenario:
> {code:sql}
> SELECT COUNT(*) FROM PhoneNumber WHERE id=1
> {code}
> returns 2.
> {code:sql}
> SELECT COUNT(*) FROM Person p, PhoneNumber pn WHERE p.id=pn.id AND p.id=1
> {code}
> or
> {code:sql}
> SELECT COUNT(*) FROM Person p INNER JOIN PhoneNumber pn ON p.id=pn.id WHERE p.id=1
> {code}
> both return only 1.
> NOTE: issue appears also when using only nested descriptors in the proto schema.



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