select substringUTF8(materialize('hello world'), 2, 5) from numbers(10000000) select substringUTF8(materialize('hello 世界'), 2, 5) from numbers(10000000) select substringIndexUTF8(materialize('www.clickhouse.com'), '.', 2) from numbers(10000000) select substringIndexUTF8(materialize('官网www.clickhouse.com'), '.', 2) from numbers(10000000) select reverseUTF8(materialize('hello world')) from numbers(10000000) select reverseUTF8(materialize('hello 世界')) from numbers(10000000) select lowerUTF8(materialize('hello world')) from numbers(10000000) select lowerUTF8(materialize('hello 世界')) from numbers(10000000) select upperUTF8(materialize('hello world')) from numbers(10000000) select upperUTF8(materialize('hello 世界')) from numbers(10000000) select leftPadUTF8(materialize('hello '), 10, ',') from numbers(10000000) select leftPadUTF8(materialize('hello '), 10, '世界') from numbers(10000000) select rightPadUTF8(materialize('hello '), 10, ',') from numbers(10000000) select rightPadUTF8(materialize('hello '), 10, '世界') from numbers(10000000)