reverting the initial patch for bug#13437900 for refinement.

mysql-test/suite/rpl/t/rpl_empty_master_host.test

@@ -17,7 +17,6 @@
 #   working when expected.
 
 --source include/master-slave.inc
---source include/have_binlog_format_mixed.inc
 
 connection slave;
 STOP SLAVE;

sql/slave.cc

@@ -1129,7 +1129,7 @@ int init_dynarray_intvar_from_file(DYNAMIC_ARRAY* arr, IO_CACHE* f)
     memcpy(buf_act, buf, read_size);
     snd_size= my_b_gets(f, buf_act + read_size, max_size - read_size);
     if (snd_size == 0 ||
-        ((snd_size + 1 == max_size - read_size) &&  buf[max_size - 2] != '\n'))
+        ((snd_size + 1 == max_size - read_size) &&  buf_act[max_size - 2] != '\n'))
     {
       /*
         failure to make the 2nd read or short read again

sql/sql_lex.cc

@@ -2352,7 +2352,6 @@ LEX::LEX()
                          INITIAL_LEX_PLUGIN_LIST_SIZE, 
                          INITIAL_LEX_PLUGIN_LIST_SIZE);
   reset_query_tables_list(TRUE);
-  repl_ignore_server_ids_inited= false;
 }
 
 

sql/sql_lex.h

@@ -291,9 +291,7 @@ typedef struct st_lex_master_info
   char *ssl_key, *ssl_cert, *ssl_ca, *ssl_capath, *ssl_cipher;
   char *relay_log_name;
   ulong relay_log_pos;
-  bool repl_ignore_server_ids_inited;
   DYNAMIC_ARRAY repl_ignore_server_ids;
-  typeof(::server_id) repl_ignore_server_ids_static_buffer[4];
 } LEX_MASTER_INFO;
 
 typedef struct st_lex_reset_slave
@@ -2457,11 +2455,6 @@ struct LEX: public Query_tables_list
     destroy_query_tables_list();
     plugin_unlock_list(NULL, (plugin_ref *)plugins.buffer, plugins.elements);
     delete_dynamic(&plugins);
-    if (mi.repl_ignore_server_ids_inited)
-    {
-      delete_dynamic(&mi.repl_ignore_server_ids);
-      mi.repl_ignore_server_ids_inited= false;
-    }
   }
 
   inline bool is_ps_or_view_context_analysis()

sql/sql_repl.cc

@@ -1689,6 +1689,7 @@ bool change_master(THD* thd, Master_info* mi)
   thd_proc_info(thd, 0);
   if (ret == FALSE)
     my_ok(thd);
+  delete_dynamic(&lex_mi->repl_ignore_server_ids); //freeing of parser-time alloc
   DBUG_RETURN(ret);
 }
 

sql/sql_yacc.yy

@@ -1863,7 +1863,12 @@ change:
             LEX *lex = Lex;
             lex->sql_command = SQLCOM_CHANGE_MASTER;
             bzero((char*) &lex->mi, sizeof(lex->mi));
+            /*
+              resetting flags that can left from the previous CHANGE MASTER
+            */
             lex->mi.repl_ignore_server_ids_opt= LEX_MASTER_INFO::LEX_MI_UNCHANGED;
+            my_init_dynamic_array(&Lex->mi.repl_ignore_server_ids,
+                                  sizeof(::server_id), 16, 16);
           }
           master_defs
           {}
@@ -1960,7 +1965,7 @@ master_def:
         | IGNORE_SERVER_IDS_SYM EQ '(' ignore_server_id_list ')'
           {
             Lex->mi.repl_ignore_server_ids_opt= LEX_MASTER_INFO::LEX_MI_ENABLE;
-          }
+           }
         |
         master_file_def
         ;
@@ -1974,15 +1979,6 @@ ignore_server_id_list:
 ignore_server_id:
           ulong_num
           {
-            if (!Lex->mi.repl_ignore_server_ids_inited)
-            {
-              my_init_dynamic_array2(&Lex->mi.repl_ignore_server_ids,
-                                     sizeof(::server_id),
-                                     Lex->mi.repl_ignore_server_ids_static_buffer,
-                                     array_elements(Lex->mi.repl_ignore_server_ids_static_buffer),
-                                     16);
-              Lex->mi.repl_ignore_server_ids_inited= true;
-            }
             insert_dynamic(&Lex->mi.repl_ignore_server_ids, (uchar*) &($1));
           }