MDEV-5096 - Wrong error message on attempt to kill somebody else's query ID

Attempting to kill query owned by different user now returns better error:
"You are not owner of query N" instead of "You are not owner of thread N".

mysql-test/r/kill.result

@@ -308,5 +308,17 @@ SLEEP(1000)
 1
 KILL QUERY ID 0;
 ERROR HY000: Unknown query id: 0
+#
+# MDEV-5096 - Wrong error message on attempt to kill somebody else's
+#             query ID
+#
+CREATE USER u1@localhost;
+SELECT SLEEP(1000);
+KILL QUERY ID ID;
+ERROR HY000: You are not owner of query ID
+KILL QUERY ID @id;
+SLEEP(1000)
+1
+DROP USER u1@localhost;
 SET DEBUG_SYNC = 'RESET';
 DROP FUNCTION MY_KILL;

mysql-test/t/kill.test

@@ -647,5 +647,31 @@ reap;
 --error ER_NO_SUCH_QUERY
 KILL QUERY ID 0;
 
+--echo #
+--echo # MDEV-5096 - Wrong error message on attempt to kill somebody else's
+--echo #             query ID
+--echo #
+CREATE USER u1@localhost;
+send SELECT SLEEP(1000);
+
+connection con1;
+let $wait_condition= SELECT @id:=QUERY_ID FROM INFORMATION_SCHEMA.PROCESSLIST WHERE INFO='SELECT SLEEP(1000)';
+source include/wait_condition.inc;
+let $id= `SELECT @id`;
+
+connect(con5, localhost, u1,,);
+--replace_result $id ID
+--error ER_KILL_QUERY_DENIED_ERROR
+eval KILL QUERY ID $id;
+
+connection con1;
+KILL QUERY ID @id;
+
+connection default;
+reap;
+disconnect con5;
+DROP USER u1@localhost;
+
+
 SET DEBUG_SYNC = 'RESET';
 DROP FUNCTION MY_KILL;

sql/share/errmsg-utf8.txt

@@ -7129,3 +7129,7 @@ ER_CANNOT_CONVERT_CHARACTER
         eng "Cannot convert '%s' character 0x%-.64s to '%s'"
 ER_INVALID_DEFAULT_VALUE_FOR_FIELD  22007
         eng "Incorrect default value '%-.128s' for column '%.192s'"
+ER_KILL_QUERY_DENIED_ERROR
+        eng "You are not owner of query %lu"
+        ger "Sie sind nicht Eigentümer von Abfrage %lu"
+        rus "Вы не являетесь владельцем запроса %lu"

sql/sql_parse.cc

@@ -8038,7 +8038,8 @@ kill_one_thread(THD *thd, longlong id, killed_state kill_signal, killed_type typ
       error=0;
     }
     else
-      error=ER_KILL_DENIED_ERROR;
+      error= (type == KILL_TYPE_QUERY ? ER_KILL_QUERY_DENIED_ERROR :
+                                        ER_KILL_DENIED_ERROR);
     mysql_mutex_unlock(&tmp->LOCK_thd_data);
   }
   DBUG_PRINT("exit", ("%d", error));