CREATE TABLE table_49704 ("Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Partner" CLOB, "Opponents" CLOB, "Score" CLOB)

What date was the match where Daniel Gimeno-Traver's partner was pere riba?
SELECT "Date" FROM table_49704 WHERE "Partner" = 'pere riba'
SELECT "Date" FROM "table_49704" WHERE "Partner" = 'pere riba'