SELECT htmlOrXmlCoarseParse(''); SELECT htmlOrXmlCoarseParse(''); SELECT htmlOrXmlCoarseParse(''); SELECT htmlOrXmlCoarseParse('This is a white space test.'); SELECT htmlOrXmlCoarseParse('This is a complex test. Hello, world ]]>world ]]> hello\n]]>hello\n'); DROP TABLE IF EXISTS defaults; CREATE TABLE defaults ( stringColumn String ) ENGINE = Memory(); INSERT INTO defaults values ('hello, world'), (''), (''), ('white space collapse'); SELECT htmlOrXmlCoarseParse(stringColumn) FROM defaults; DROP table defaults;