Api call host.update fails when trying to change host's dns.

{
"params" : {
"inventory" :

{ "type" : "Type1" }

,
"interfaces" : [

{ "dns" : "host.domain2.org", "useip" : 1, "ip" : "10.1.2.3", "type" : 1, "port" : 10050, "main" : 1 }

,

{ "dns" : "host.domain2.org", "useip" : 1, "ip" : "10.1.2.3", "type" : 2, "port" : 161, "main" : 1 }

],
"groups" : [

{ "groupid" : "17" }

,

{ "groupid" : "18" }

,

{ "groupid" : "45" }

,

{ "groupid" : "46" }

],
"hostid" : "10229",
"templates" : [

{ "templateid" : "10085" }

]
},
"auth" : "3c793c58b9eaf58092fce06d743bca78",
"jsonrpc" : "2.0",
"method" : "host.update",
"id" : 13
}

Error:

{"data":"SQL statement execution has failed \"DELETE FROM interface WHERE (interfaceid IN ('269','270')) \"","message":"Application error.","code":-32500}