CREATE TABLE table_name_22 (partner VARCHAR, surface VARCHAR, opponents_in_the_final VARCHAR)

Name the partner for surface of grass and opponents of j rgen melzer philipp petzschner
SELECT partner FROM table_name_22 WHERE surface = "grass" AND opponents_in_the_final = "jürgen melzer philipp petzschner"
SELECT "partner" FROM "table_name_22" WHERE "grass" = "surface" AND "jürgen melzer philipp petzschner" = "opponents_in_the_final"