When called from a C# GUI client, after a logical error, CONNECT returns from rnd_next the 122 error code, MariaDB does not respond until timeout. For example:

create table tloop (

n int,

w char(16), /* too small */

f char(3))

engine=connect table_type=csv file_name='foo.csv' lrecl=50;

The file foo.csv being:

26,Hello world!,foo

45,abcdefghijklmnopqrstuvwxyz,bar

Executing:

select * from tloop;

makes the server not respond until timeout.