CREATE TABLE table_63435 ("Processor" CLOB, "Model" CLOB, "Clock speed  ( MHz ) " FLOAT, "L1 cache  ( bytes ) " CLOB, "Introduced" CLOB, "Discontinued" CLOB)

What is the least clock speed (MHz) with January 1986 as introduced?
SELECT MIN("Clock speed (MHz)") FROM table_63435 WHERE "Introduced" = 'january 1986'
SELECT MIN("Clock speed (MHz)") FROM "table_63435" WHERE "Introduced" = 'january 1986'