I try create new item on proxy host with mysql database 5.6.13 (zabbix-proxy 2.0.8). Item don't have field 'Description'. Log error on proxy:
[Z3005] query failed: [1364] Field 'description' doesn't have a default value [insert into items (itemid,type,snmp_community,snmp_oid,hostid,key_,delay,status,value_type,trapper_hosts,snmpv3_securityname,snmpv3_securitylevel,snmpv3_authpassphrase,snmpv3_privpassphrase,formula,logtimefmt,delay_flex,params,ipmi_sensor,data_type,authtype,username,password,publickey,privatekey,flags,filter,interfaceid,port) values (100100000023641,3,'','',100100000010100,'icmppingsec[]',30,0,0,'','',0,'','','1','','','','',0,0,'','','','',0,'',100100000000010,'');
and also:
[Z3005] query failed: [1364] Field 'test_string' doesn't have a default value [insert into regexps (regexpid,name) values (1001000000
00001,'File systems for discovery');

This work on 5.1 database, but on MySQL 5.6 TEXT columns cannot be assigned a default value, that is if insert don't have 'description' column in statement, query is failed.
I think it can be fix these ways:

• allow in schema.sql null values for text columns, changing these columns (text):
  `description` text NOT NULL, to: `description` text,
• or add empty value explicitly in every insert for these columns, for example:
  insert into regexps (regexpid,name,test_string) values (100100000000001,'File systems for discovery','');