text: CREATE TABLE features_test (
  	locale TEXT NOT NULL,
  	url INTEGER NOT NULL,
  	tfidf TEXT,
  	tfidf_row TEXT,
  	tfidf_column TEXT,
  	code TEXT,
  	detail TEXT,
  	isRedir INTEGER,
  	redirDomain TEXT,
  	html_length INTEGER,
  	content_length INTEGER,
  	dom_depth INTEGER,
  	number_of_tags INTEGER,
  	unique_tags INTEGER,
  	PRIMARY KEY(locale, url)
  );
  