text: -- file:opr_sanity.sql ln:959 expect:true
  SELECT a.aggfnoid::oid, p.proname, ptr.oid, ptr.proname
  FROM pg_aggregate AS a, pg_proc AS p, pg_proc AS ptr
  WHERE a.aggfnoid = p.oid AND
      a.aggmtransfn = ptr.oid AND ptr.proisstrict AND
      a.aggminitval IS NULL AND
      NOT binary_coercible(p.proargtypes[0], a.aggmtranstype)
  