CREATE TABLE table_64593 ("Version" TEXT, "Standard name" TEXT, "Common name" TEXT, "Downstream rate" TEXT, "Upstream rate" TEXT)

What's the version of Itu g.992.3 Annex J?
SELECT "Version" FROM table_64593 WHERE "Standard name" = 'itu g.992.3 annex j'
SELECT "Version" FROM "table_64593" WHERE "Standard name" = 'itu g.992.3 annex j'