hits_10m_single CREATE TABLE hits_10m_words (word String, UserID UInt64) ENGINE Memory CREATE TABLE strings (short String, long String) ENGINE Memory INSERT INTO hits_10m_words SELECT DISTINCT arrayJoin(splitByString(' ', SearchPhrase)) AS word, UserID FROM hits_10m_single WHERE length(word) > 0 INSERT INTO strings SELECT toString(rand()) a, a || a || a || a || a || a || a || a || a || a || a || a FROM zeros(1000000) 1 SELECT 1 FROM hits_10m_words WHERE word IN (SELECT word FROM hits_10m_words) FORMAT Null SELECT 1 FROM strings WHERE short IN (SELECT short FROM strings) FORMAT Null SELECT 1 FROM strings WHERE long IN (SELECT long FROM strings) FORMAT Null SELECT 1 FROM strings WHERE short IN (SELECT long FROM strings) FORMAT Null SELECT 1 FROM strings WHERE long IN (SELECT short FROM strings) FORMAT Null SELECT 1 FROM hits_10m_words WHERE word IN (SELECT short FROM strings) FORMAT Null SELECT 1 FROM hits_10m_words WHERE word IN (SELECT long FROM strings) FORMAT Null DROP TABLE IF EXISTS hits_10m_words DROP TABLE IF EXISTS strings