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https://issues.apache.org/jira/browse/DERBY-7084?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Makkus B. resolved DERBY-7084.
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Issue & fix info: Workaround attached
Resolution: Not A Bug
> Identity column data import does not increment generator
> --------------------------------------------------------
>
> Key: DERBY-7084
> URL: https://issues.apache.org/jira/browse/DERBY-7084
> Project: Derby
> Issue Type: Bug
> Reporter: Makkus B.
> Priority: Major
>
> When importing table data containing identity column vales (defined as
> GENERATED BY DEFAULT AS IDENTITY) via SYSCS_IMPORT_DATA (or
> SYSCS_IMPORT_TABLE) the data will be imported (when identity column was
> defined as GENERATED BY DEFAULT AS IDENTITY) , but the (internal) table index
> generator will not be updated. If the column is further defined as UNIQUE (or
> PRIMARY KEY) new data might not be added to the table (if the internal index
> will match an imported one).
> The expected behaviour would be that the internal index would always stay
> ahead of identity values inserted to the table. This is: for a new table the
> index defaults to 1. If data is imported to a new table, the index should not
> stay at 1 but become 1+max(imported_index). So the table can be continued to
> be used after the import.
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