CREATE TABLE table_78502 ("Outcome" CLOB, "Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Partner" CLOB, "Opponent in Final" CLOB, "Score in Final" CLOB)

Which partner was on 14 april 2013?
SELECT "Partner" FROM table_78502 WHERE "Date" = '14 april 2013'
SELECT "Partner" FROM "table_78502" WHERE "Date" = '14 april 2013'