[jira] [Updated] (DERBY-7170) Error [30000] [42Y07]: Schema 'SA' does not exist when joining SYS.SYSTABLES to SYS.SYSSCHEMAS when aliasing the SYSCHEMAS table

[Richard N. Hillegas (Jira)]

     [ 
https://issues.apache.org/jira/browse/DERBY-7170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Richard N. Hillegas updated DERBY-7170:
---------------------------------------
    Bug behavior facts: Seen in production
      Issue & fix info: Repro attached,Workaround attached
               Urgency: Normal

> Error [30000] [42Y07]: Schema 'SA' does not exist when joining SYS.SYSTABLES 
> to SYS.SYSSCHEMAS when aliasing the SYSCHEMAS table
> --------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-7170
>                 URL: https://issues.apache.org/jira/browse/DERBY-7170
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.17.1.0
>            Reporter: Lukas Eder
>            Priority: Major
>
> On a fresh database connection using org.apache.derby.jdbc.EmbeddedDriver, 
> using username "sa", and this URL, for example: 
> "jdbc:derby:C:\Users\lukas\.data\derby\test", I'm trying to run this query in 
> Dbeaver:
> {code}
>  SELECT
>   a.SCHEMANAME,
>   SYS.SYSTABLES.TABLENAME
> FROM
>   SYS.SYSTABLES
> JOIN SYS.SYSSCHEMAS AS a ON
>   SYS.SYSTABLES.SCHEMAID = a.SCHEMAID
> {code}
> It fails with this error:
> > SQL Error [30000] [42Y07]: Schema 'SA' does not exist
> Avoiding the alias is a valid workaround:
> {code}
> SELECT
>   SYS.SYSSCHEMAS.SCHEMANAME,
>   SYS.SYSTABLES.TABLENAME
> FROM
>   SYS.SYSTABLES
> JOIN SYS.SYSSCHEMAS ON
>   SYS.SYSTABLES.SCHEMAID = SYS.SYSSCHEMAS.SCHEMAID
> {code}



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