import-export-identity-columns.md
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If both source and destination tables have an IDENTITY column and configuration parameter CopyFromVerticaWithIdentity is set to true (1), you do not need to list them.
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If source table has an IDENTITY column, but target table does not, you must explicitly list the source and target columns.
Caution
Failure to list which IDENTITY columns to export can cause an error, because the IDENTITY column will be interpreted as missing in the destination table.