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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-3398) Support min/max values for Java types float/double in real/double columns
Date Tue, 19 Feb 2013 09:01:17 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13581137#comment-13581137
] 

Kristian Waagan commented on DERBY-3398:
----------------------------------------

Thanks for uploading a release note, Dag.

A few comments:
 o from the template: "This is a one line, one sentence summary of the issue." So I guess
the summary is too long and verbose.
 o "To allow applications to use Derby to store a wider range of the Java floating point number
types." -> "To allow applications to store a wider range of [the] Java floating point numbers
in Derby"?
   (simplification and matter of preference, feel free to ignore :) )
 o "The application can no rely on": "no" -> "not" ?
 o clean up / simplify "to detect when use of numbers outside the DB2 limits were used,"?
                
> 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
>            Assignee: Dag H. Wanvik
>            Priority: Minor
>              Labels: derby_triage10_10
>         Attachments: derby-3398-2.diff, derby-3398-3.diff, derby-3398-3.stat, derby-3398-4.diff,
derby-3398-5.diff, derby-3398-5.stat, derby-3398-7.diff, derby-3398-7.stat, derby-3398.diff,
derby-3398.status, releaseNote.html
>
>
> 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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