1. 2014-03-21 Re: [PERFORM] Performance of UNION vs IN pgsql-per Jean-Max Reymond 2. 2014-03-20 Re: [PERFORM] Performance of UNION vs IN pgsql-per Torsten_Förtsch 3. 2014-03-20 [PERFORM] Performance of UNION vs IN pgsql-per Jean-Max Reymond