Pegasus database schemas are using latin1 charset, which does not support unicode characters. We will need to change them to support UTF-8.

sqlite does not seem to be impacted

sqlite> create table a ( a varchar(10) );
sqlite> insert into a values ( '学中文' );
sqlite> select * from a;
学中文

MySQL/PostgreSQL would need fixing

create database a CHARACTER SET latin1;
use a;
create table a ( a varchar(10) ) CHARACTER SET latin1;
insert into a values ( '学中文' ); – Fails
select * from a;
create table b ( a varchar(10) ) CHARACTER SET utf8mb4;
insert into b values ( '学中文' );
select * from b;