CREATE TABLE table_64594 ("Version" CLOB, "Standard name" CLOB, "Common name" CLOB, "Downstream rate" CLOB, "Upstream rate" CLOB)

What's the version that has a 20.0 mbit/s downstream rate?
SELECT "Version" FROM table_64594 WHERE "Downstream rate" = '20.0 mbit/s'
SELECT "Version" FROM "table_64594" WHERE "Downstream rate" = '20.0 mbit/s'