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eprm_join_cols_reim_child='reim.entity_ref_id=tpcomp.product_component_id AND reim.op_id=tpcomp.op_id AND reim.bu_id=tpcomp.bu_id'
i have above thing now write an python code to split the the things with 'and' then we get three things now remove everthing after = now the thigs become like reim.entity_ref_id, reim.op_id, reim.bu_id now you should remove everything before . now the things become entity_ref_id, op_id, bu_id