[jira] [Updated] (DERBY-3398) Support min/max values for Java types float/double in real/double columns

["Dag H. Wanvik (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-3398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dag H. Wanvik updated DERBY-3398:
---------------------------------

    Attachment: derby-3398.status
                derby-3398.diff

Uploading a patch which removes this DB2 restriction, and adds tests. Running regressions
                
> Support min/max values for Java types float/double in real/double columns
> -------------------------------------------------------------------------
>
>                 Key: DERBY-3398
>                 URL: https://issues.apache.org/jira/browse/DERBY-3398
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.4.1.3
>            Reporter: Knut Anders Hatlen
>            Priority: Minor
>              Labels: derby_triage10_10
>         Attachments: derby-3398.diff, derby-3398.status
>
>
> Derby doesn't support the entire range of valid (finite) values of the Java primitive types double/float in columns with SQL type DOUBLE or REAL. This appears to be a limitation that was introduced for compatibility with DB2. There have been some requests on derby-user that we lift this restriction.
> The restriction is enforced by the methods normalizeREAL() and normalizeDOUBLE() in org.apache.derby.iapi.types.NumberDataType.

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