Block Corruption issue..

Dear Concner,

Could you help us solving the below error which we are getting during taking pg_dump.

pg_dump: SQL command failed
pg_dump: Error message from server: ERROR: invalid page header in block 14521215 of relation pg_tblspc/18140340/PG_9.1_201105231/18140346/18140757
pg_dump: The command was: COPY evidence.partline (feature_id, version, base_type_id, domain_class_id, domain_subclass_id, status_id, deleted, modification_time, has_children, is_evidence, data_immediate, data_lazy, parent_line_id, start_point_id, end_point_id, start_offset, end_offset, geometry) TO stdout;

Regards,
Sachin Srivastava

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