I have a Centos 7 running PowerDNS
after a update to 

 mysql-community-server-8.0.22-1.el7.x86_64
 mysql-community-devel-8.0.22-1.el7.x86_64 pdns-4.3.1-1pdns.el7.x86_64
 pdns-backend-mysql-4.3.1-1pdns.el7.x86_64
 pdns-tools-4.3.1-1pdns.el7.x86_64

I am receiving this messages 


ct 18 22:38:14 pdns_server: Backend error: GSQLBackend unable to find 
before/after (after) for domain_id 48 and qname 'xxxx': Could not execute mysql 
statement: select ordername from records where ordername > ? and domain_id=? 
and disabled=0 and ordername is not null order by 1 asc limit 1: Illegal mix of 
collations (latin1_bin,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation 
'>'

Oct 18 22:38:16 pdns_server: Backend reported permanent error which prevented 
lookup (GSQLBackend unable to find before/after (after) for domain_id 48 and 
qname 'xxxx': Could not execute mysql statement: select ordername from records 
where ordername > ? and domain_id=? and disabled=0 and ordername is not null 
order by 1 asc limit 1: Illegal mix of collations (latin1_bin,IMPLICIT) and 
(utf8_general_ci,COERCIBLE) for operation '>'), aborting
Oct 18 22:38:16 pdns_server: Backend error: GSQLBackend unable to find 
before/after (after) for domain_id 48 and qname 'xxxxxx': Could not execute 
mysql statement: select ordername from records where ordername > ? and 
domain_id=? and disabled=0 and ordername is not null order by 1 asc limit 1: 
Illegal mix of collations (latin1_bin,IMPLICIT) and (utf8_general_ci,COERCIBLE) 
for operation '>'

I do not know if there some bug or requirement of the updated software 

I had and old version of pdns and I do not know if i need to update my database 
schema
Can someone help me or point me in the right direction?

thanks in advance
Jorge Arenas







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