1 CREATE TABLE hits_100m_words (words Array(String), UserID UInt64) ENGINE Memory INSERT INTO hits_100m_words SELECT splitByNonAlpha(SearchPhrase) AS words, UserID FROM hits_100m_single WHERE length(words) > 0 SELECT splitByNonAlpha(SearchPhrase) FROM hits_100m_single FORMAT Null SELECT splitByWhitespace(SearchPhrase) FROM hits_100m_single FORMAT Null SELECT arrayMap(x -> stem('ru', x), words) FROM hits_100m_words FORMAT Null DROP TABLE IF EXISTS hits_100m_words DROP TABLE IF EXISTS hits_100m_words_ws