Hi!
You can use XMLTABLE function select xmltable.* from t,lateral xmltable(xmlnamespaces('urn:iso:std:iso:20022:tech:xsd:camt.053.001.02' as ns),'/ns:Document/ns:BkToCstmrStmt/ns:Stmt/ns:Ntry/.' passing t.x columns tasusumma numeric path 'ns:Amt')
In 9.1.5 this throws error ERROR: syntax error at or near "(" LINE 20: lateral xmltable(xmlnamespaces( ^ SQL state: 42601 Character: 582 Andrus.