MDEV-29644 post-merge fixup

Applying b98375f9 instead of 9b32e4b1 for version 10.5-10.8.
Applying 5075f4e0 instead of 9b32e4b1 for version 10.9+.

storage/spider/mysql-test/spider/bugfix/r/self_reference_multi.result

@@ -12,9 +12,9 @@ alter table t2 ENGINE=Spider COMMENT='WRAPPER "mysql", srv "srv",TABLE "t0"';
 select * from t0;
 ERROR HY000: An infinite loop is detected when opening table test.t0
 select * from t1;
-ERROR HY000: An infinite loop is detected when opening table test.t1
+ERROR HY000: An infinite loop is detected when opening table test.t0
 select * from t2;
-ERROR HY000: An infinite loop is detected when opening table test.t2
+ERROR HY000: An infinite loop is detected when opening table test.t0
 drop table t0, t1, t2;
 for master_1
 for child2

storage/spider/spd_db_mysql.cc

@@ -2289,44 +2289,64 @@ bool spider_db_mbase::is_xa_nota_error(
   DBUG_RETURN(xa_nota);
 }
 
-void spider_db_mbase::fetch_and_print_warnings(struct tm *l_time)
+int spider_db_mbase::fetch_and_print_warnings(struct tm *l_time)
 {
+  int error_num = 0;
   DBUG_ENTER("spider_db_mbase::fetch_and_print_warnings");
+  DBUG_PRINT("info",("spider this=%p", this));
 
   if (spider_param_dry_access() || db_conn->status != MYSQL_STATUS_READY ||
-      db_conn->server_status & SERVER_MORE_RESULTS_EXISTS)
-    DBUG_VOID_RETURN;
+      db_conn->server_status & SERVER_MORE_RESULTS_EXISTS ||
+      !db_conn->warning_count)
+    DBUG_RETURN(0);
 
   if (mysql_real_query(db_conn, SPIDER_SQL_SHOW_WARNINGS_STR,
                        SPIDER_SQL_SHOW_WARNINGS_LEN))
-    DBUG_VOID_RETURN;
+    DBUG_RETURN(0);
 
   MYSQL_RES *res= mysql_store_result(db_conn);
   if (!res)
-    DBUG_VOID_RETURN;
+    DBUG_RETURN(0);
 
   uint num_fields= mysql_num_fields(res);
   if (num_fields != 3)
   {
     mysql_free_result(res);
-    DBUG_VOID_RETURN;
+    DBUG_RETURN(0);
   }
 
   MYSQL_ROW row= mysql_fetch_row(res);
-  while (row)
+  if (l_time)
   {
-    fprintf(stderr,
-            "%04d%02d%02d %02d:%02d:%02d [WARN SPIDER RESULT] from [%s] %ld "
-            "to %ld: %s %s %s\n",
-            l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
-            l_time->tm_hour, l_time->tm_min, l_time->tm_sec, conn->tgt_host,
-            (ulong) db_conn->thread_id, (ulong) current_thd->thread_id, row[0],
-            row[1], row[2]);
-    row= mysql_fetch_row(res);
-  }
+    while (row)
+    {
+      fprintf(stderr,
+              "%04d%02d%02d %02d:%02d:%02d [WARN SPIDER RESULT] from [%s] %ld "
+              "to %ld: %s %s %s\n",
+              l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
+              l_time->tm_hour, l_time->tm_min, l_time->tm_sec, conn->tgt_host,
+              (ulong) db_conn->thread_id, (ulong) current_thd->thread_id, row[0],
+              row[1], row[2]);
+      row= mysql_fetch_row(res);
+    }
+  } else {
+    while (row)
+    {
+      DBUG_PRINT("info",("spider row[0]=%s", row[0]));
+      DBUG_PRINT("info",("spider row[1]=%s", row[1]));
+      DBUG_PRINT("info",("spider row[2]=%s", row[2]));
+      longlong res_num =
+        (longlong) my_strtoll10(row[1], (char**) NULL, &error_num);
+      DBUG_PRINT("info",("spider res_num=%lld", res_num));
+      my_printf_error((int) res_num, row[2], MYF(0));
+      error_num = (int) res_num;
+      row = mysql_fetch_row(res);
+    }
+  }
+    
   mysql_free_result(res);
 
-  DBUG_VOID_RETURN;
+  DBUG_RETURN(error_num);
 }
 
 spider_db_result *spider_db_mbase::store_result(
@@ -14630,11 +14650,9 @@ int spider_mbase_handler::show_table_status(
       DBUG_RETURN(error_num);
     }
   }
+  if ((error_num = ((spider_db_mbase *) conn->db_conn)->fetch_and_print_warnings(NULL)))
   {
-    time_t cur_time = (time_t) time((time_t*) 0);
-    struct tm lt;
-    struct tm *l_time = localtime_r(&cur_time, &lt);
-    ((spider_db_mbase *) conn->db_conn)->fetch_and_print_warnings(l_time);
+    DBUG_RETURN(error_num);
   }
   if (share->static_records_for_status != -1)
   {

storage/spider/spd_db_mysql.h

@@ -442,7 +442,7 @@ class spider_db_mbase: public spider_db_conn
   bool is_xa_nota_error(
     int error_num
   );
-  void fetch_and_print_warnings(struct tm *l_time);
+  int fetch_and_print_warnings(struct tm *l_time);
   spider_db_result *store_result(
     spider_db_result_buffer **spider_res_buf,
     st_spider_db_request_key *request_key,