Remove confidentiality objects from the confidentiality level as follows. Specify the type and name of confidentiality objects to be excluded in JSON format. The following example removes table-type confidentiality objects schema1.table1 and schema1.table2 from the confidentiality level 'level1'.

select pgx_remove_object_from_confidential_level('matrix_foo', 'level1' 
'[{
    "type":"table",
    "object":[
        {
          "schema":"schema1",
          "table":["table1","table2"]
        }
     ]
}]')