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https://issues.apache.org/jira/browse/DERBY-3398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13576341#comment-13576341
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Dag H. Wanvik commented on DERBY-3398:
--------------------------------------
Thanks for detecting the boolean howler, Knut. As for accepting the values
always, I am sceptical, cf this example (your scenario post soft upgrade
insert):
ij> select d from t10_9;
D
----------------------
1.7976931348623157E308
ij> select d*1.0 from t10_9;
1
----------------------
ERROR 22003: The resulting value is outside the range for the data type
DOUBLE.
ij> update t2 set d=(select max(d) from t10_9);
ERROR XJ001: Java exception: 'ASSERT FAILED error on clone, value =
1.7976931348623157E308 isnull = false:
org.apache.derby.shared.common.sanity.AssertFailure'.
ERROR 22003: The resulting value is outside the range for the data type
DOUBLE.
So it seems the normalization is only skipped in certain contexts...
> 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-3398-2.diff, derby-3398-3.diff, derby-3398-3.stat,
> 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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