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https://issues.apache.org/jira/browse/DERBY-2280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12490396
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Kathey Marsden commented on DERBY-2280:
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Yes, the double negative is confusing:
UNSIGNED_ATTRIBUTE= false means it IS a signed type.
UNSIGNED_ATTRIBUTE=true means it IS NOT a signed type.
So my thinking is that only numeric types should have UNSIGNED_ATTRIBUTE=false
The rest should have UNSIGNED_ATTRIBUTE=true
> DatabaseMetaData.getTypeInfo() UNSIGNED_ATTRIBUTE and AUTO_INCREMENT column
> returns incorrect information for BLOB & CLOB data type
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-2280
> URL: https://issues.apache.org/jira/browse/DERBY-2280
> Project: Derby
> Issue Type: Bug
> Components: JDBC
> Affects Versions: 10.0.2.1, 10.1.1.0, 10.1.2.1, 10.1.3.1, 10.2.1.6,
> 10.2.2.0, 10.3.0.0
> Reporter: Saurabh Vyas
> Assigned To: Saurabh Vyas
> Priority: Minor
> Attachments: Derby-2280.diff, Derby-2280.stat
>
>
> getTypeInfo() method should return FALSE for UNSIGNED_ATTRIBUTE and
> AUTO_INCREMENT in case of BLOB & CLOB data type.
> Currently it returns NULL value.
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