base64 once 10000 5000 20000 string materialize('Hello, world!') materialize('This is a long string to test ClickHouse base64 functions impl..') toString(number) table numbers numbers_mt SELECT count() FROM system.{table} WHERE NOT ignore(base64Encode({string})) SELECT count() FROM system.{table} WHERE base64Decode(base64Encode({string})) != {string} SELECT count() FROM system.{table} WHERE tryBase64Decode(base64Encode({string})) != {string}