What is the most reduced 2007 that has 2008 littler than 1,270, and 2003 bigger than 870?
CREATE TABLE "copper_production_thousands_tonnes" (
  "country" text,
  "2002" real,
  "2003" real,
  "2004" real,
  "2005" real,
  "2006" real,
  "2007" real,
  "2008" real,
  "2009" real,
  "2010" real,
  "2011" real
);
SELECT MIN("2007") FROM "copper_production_thousands_tonnes" WHERE "2008"<'1,270' AND "2003">870;