registerFunction( "bit_xor", new StandardSQLFunction( "bit_xor" ) );
registerFunction( "character_length", new StandardSQLFunction( "character_length", StandardBasicTypes.LONG ) );
registerFunction( "charextract", new StandardSQLFunction( "charextract", StandardBasicTypes.STRING ) );
registerFunction( "concat", new VarArgsSQLFunction( StandardBasicTypes.STRING, "(", "+", ")" ) );
registerFunction( "cos", new StandardSQLFunction( "cos", StandardBasicTypes.DOUBLE ) );
registerFunction( "current_user", new NoArgSQLFunction( "current_user", StandardBasicTypes.STRING, false ) );
registerFunction( "current_time", new NoArgSQLFunction( "date('now')", StandardBasicTypes.TIMESTAMP, false ) );
registerFunction( "current_timestamp", new NoArgSQLFunction( "date('now')", StandardBasicTypes.TIMESTAMP, false ) );
registerFunction( "current_date", new NoArgSQLFunction( "date('now')", StandardBasicTypes.TIMESTAMP, false ) );
registerFunction( "date_trunc", new StandardSQLFunction( "date_trunc", StandardBasicTypes.TIMESTAMP ) );
registerFunction( "day", new StandardSQLFunction( "day", StandardBasicTypes.INTEGER ) );
registerFunction( "dba", new NoArgSQLFunction( "dba", StandardBasicTypes.STRING, true ) );
registerFunction( "dow", new StandardSQLFunction( "dow", StandardBasicTypes.STRING ) );
registerFunction( "extract", new SQLFunctionTemplate( StandardBasicTypes.INTEGER, "date_part('?1', ?3)" ) );
registerFunction( "exp", new StandardSQLFunction( "exp", StandardBasicTypes.DOUBLE ) );
registerFunction( "gmt_timestamp", new StandardSQLFunction( "gmt_timestamp", StandardBasicTypes.STRING ) );
registerFunction( "hash", new StandardSQLFunction( "hash", StandardBasicTypes.INTEGER ) );
registerFunction( "hex", new StandardSQLFunction( "hex", StandardBasicTypes.STRING ) );
registerFunction( "hour", new StandardSQLFunction( "hour", StandardBasicTypes.INTEGER ) );
registerFunction( "initial_user", new NoArgSQLFunction( "initial_user", StandardBasicTypes.STRING, false ) );
registerFunction( "intextract", new StandardSQLFunction( "intextract", StandardBasicTypes.INTEGER ) );
registerFunction( "left", new StandardSQLFunction( "left", StandardBasicTypes.STRING ) );
registerFunction( "locate", new SQLFunctionTemplate( StandardBasicTypes.LONG, "locate(?1, ?2)" ) );
registerFunction( "length", new StandardSQLFunction( "length", StandardBasicTypes.LONG ) );
registerFunction( "ln", new StandardSQLFunction( "ln", StandardBasicTypes.DOUBLE ) );
registerFunction( "log", new StandardSQLFunction( "log", StandardBasicTypes.DOUBLE ) );
registerFunction( "lower", new StandardSQLFunction( "lower" ) );
registerFunction( "lowercase", new StandardSQLFunction( "lowercase" ) );
registerFunction( "minute", new StandardSQLFunction( "minute", StandardBasicTypes.INTEGER ) );
registerFunction( "month", new StandardSQLFunction( "month", StandardBasicTypes.INTEGER ) );
registerFunction( "octet_length", new StandardSQLFunction( "octet_length", StandardBasicTypes.LONG ) );
registerFunction( "pad", new StandardSQLFunction( "pad", StandardBasicTypes.STRING ) );
registerFunction( "position", new StandardSQLFunction( "position", StandardBasicTypes.LONG ) );
registerFunction( "power", new StandardSQLFunction( "power", StandardBasicTypes.DOUBLE ) );
registerFunction( "random", new NoArgSQLFunction( "random", StandardBasicTypes.LONG, true ) );
registerFunction( "randomf", new NoArgSQLFunction( "randomf", StandardBasicTypes.DOUBLE, true ) );
registerFunction( "right", new StandardSQLFunction( "right", StandardBasicTypes.STRING ) );
registerFunction( "session_user", new NoArgSQLFunction( "session_user", StandardBasicTypes.STRING, false ) );
registerFunction( "second", new StandardSQLFunction( "second", StandardBasicTypes.INTEGER ) );
registerFunction( "size", new NoArgSQLFunction( "size", StandardBasicTypes.LONG, true ) );
registerFunction( "squeeze", new StandardSQLFunction( "squeeze" ) );
registerFunction( "sin", new StandardSQLFunction( "sin", StandardBasicTypes.DOUBLE ) );
registerFunction( "soundex", new StandardSQLFunction( "soundex", StandardBasicTypes.STRING ) );
registerFunction( "sqrt", new StandardSQLFunction( "sqrt", StandardBasicTypes.DOUBLE ) );
registerFunction( "substring", new SQLFunctionTemplate( StandardBasicTypes.STRING, "substring(?1 FROM ?2 FOR ?3)" ) );
registerFunction( "system_user", new NoArgSQLFunction( "system_user", StandardBasicTypes.STRING, false ) );
//registerFunction( "trim", new StandardSQLFunction( "trim", StandardBasicTypes.STRING ) );
registerFunction( "unhex", new StandardSQLFunction( "unhex", StandardBasicTypes.STRING ) );
registerFunction( "upper", new StandardSQLFunction( "upper" ) );
registerFunction( "uppercase", new StandardSQLFunction( "uppercase" ) );
registerFunction( "user", new NoArgSQLFunction( "user", StandardBasicTypes.STRING, false ) );
registerFunction( "usercode", new NoArgSQLFunction( "usercode", StandardBasicTypes.STRING, true ) );
registerFunction( "username", new NoArgSQLFunction( "username", StandardBasicTypes.STRING, true ) );
registerFunction( "uuid_create", new StandardSQLFunction( "uuid_create", StandardBasicTypes.BYTE ) );
registerFunction( "uuid_compare", new StandardSQLFunction( "uuid_compare", StandardBasicTypes.INTEGER ) );
registerFunction( "uuid_from_char", new StandardSQLFunction( "uuid_from_char", StandardBasicTypes.BYTE ) );
registerFunction( "uuid_to_char", new StandardSQLFunction( "uuid_to_char", StandardBasicTypes.STRING ) );
registerFunction( "year", new StandardSQLFunction( "year", StandardBasicTypes.INTEGER ) );