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From "Andrus Adamchik (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (CAY-1772) Real support for DbEntity catalogs
Date Thu, 15 Nov 2012 20:15:12 GMT

     [ https://issues.apache.org/jira/browse/CAY-1772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrus Adamchik closed CAY-1772.
--------------------------------

    Resolution: Fixed
    
> Real support for DbEntity catalogs
> ----------------------------------
>
>                 Key: CAY-1772
>                 URL: https://issues.apache.org/jira/browse/CAY-1772
>             Project: Cayenne
>          Issue Type: Improvement
>          Components: Core Library, Modeler
>            Reporter: Andrus Adamchik
>            Assignee: Andrus Adamchik
>             Fix For: 3.2M1
>
>
> While DbEntity has a 'catalog' property, we sort of ignore its presence, don't include
catalogs in generated SQL, and advise users to enter it in the "schema" field. However there
is a practical aspect of catalogs vs. schemas that became obvious when I started using 'cdbimport'
with MySQL (see CAY-1759). MySQL only has a single notion of "database" as a table namespace
unit within a given server instance. This maps to "catalog" in the MySQL JDBC driver (see
[1], and [2] for explanation of schemas vs catalogs across DBs). 
> While using schema in place of catalog was fine with manual mapping, it became a problem
with reverse-engineered DataMaps that left the schema empty. So all the generated SQL based
on such DataMaps would use bare table names, and if the catalog is not a part of JDBC URL,
a namespace conflict would occur.
> So we need to :
> 1. honor catalog setting in generated SQL
> 2. add "default catalog" DataMap, and "catalog" to DbEntity fields in the Modeler
> [1] http://forums.mysql.com/read.php?39,137564,137629#msg-137629
> [2] http://stackoverflow.com/questions/7942520/relationship-between-catalog-schema-user-and-database-instance

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