Failed to update RowID generator

Hi,

I am first time posting on this forum.

I am getting “Failed to update RowID generator” error when I am trying to load data in gridsql. I checked that error came from underlying database postgreSQL. We are using postgresql 8.2.  

ERROR [DatabaseLoad] -> Error While Loading : org.postgresql.util.PSQLException: ERROR: Can not prepare request: Failed to update RowID generator
ERROR [DatabaseLoad].

Your help is highly appreciated.

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Thanks

Sam Jass