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https://issues.apache.org/jira/browse/DERBY-3523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12577893#action_12577893
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V.Narayanan commented on DERBY-3523:
------------------------------------
You could consider introducing a newException method in the StandardException
class
that would accept two SQLStates (one for hard, one for soft upgrade), the data
dictionary
version.
This method would use the appropriate SQLState depending on whether hard upgrade
or soft upgrade is being done for the mentioned data dictionary version.
> sql states (X0Y63, X0Y63, X0Y63.S) related to nulls in unique constraints are
> associated with wrong message texts
> ------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-3523
> URL: https://issues.apache.org/jira/browse/DERBY-3523
> Project: Derby
> Issue Type: Bug
> Affects Versions: 10.4.0.0, 10.5.0.0
> Reporter: Anurag Shekhar
> Assignee: Anurag Shekhar
>
> There are three messages which after Derby-3330 checkin now giving wrong
> information. These are
> 42831:'{0}' cannot be a column of a primary key or unique key because it can
> contain null values.
> 42Z20:Column '{0}' cannot be made nullable. It is part of a primary key or
> unique constraint, which cannot have any null able columns.
> X0Y63.S:The command on table '{0}' failed because null data was found in the
> primary key or unique constraint/index column(s). All columns in a primary or
> unique index key must not be null.
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