CREATE TABLE table_78039 ("Full Name" TEXT, "Nickname" TEXT, "Gender" TEXT, "Weight at birth" TEXT, "Meaning" TEXT)

What is the nickname of the boy who weighed 810g (26.0 oz.) at birth?
SELECT "Nickname" FROM table_78039 WHERE "Gender" = 'boy' AND "Weight at birth" = '810g (26.0 oz.)'
SELECT "Nickname" FROM "table_78039" WHERE "Gender" = 'boy' AND "Weight at birth" = '810g (26.0 oz.)'