Bug #27395 OPTION_STATUS_NO_TRANS_UPDATE is not preserved at the end of SF()

thd->options' OPTION_STATUS_NO_TRANS_UPDATE bit was not restored at the end of SF() invocation, where
SF() modified non-ta table.
As the result of this artifact it was not possible to detect whether there were any side-effects when
top-level query ends. 
If the top level query table was not modified and the bit is lost there would be no binlogging.

Fixed with preserving the bit inside of thd->no_trans_update struct. The struct agregates two bool flags
telling whether the current query and the current transaction modified any non-ta table.
The flags stmt, all are dropped at the end of the query and the transaction.

1 files changed, 8 insertions, 8 deletions

diff --git a/sql/sql_load.cc b/sql/sql_load.cc
index 3f67a0c3f5d..8848c2c5e5b 100644
--- a/sql/sql_load.cc
+++ b/sql/sql_load.cc
@@ -377,7 +377,7 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
       table->file->start_bulk_insert((ha_rows) 0);
     table->copy_blobs=1;
 
-    thd->no_trans_update= 0;
+    thd->no_trans_update.stmt= FALSE;
     thd->abort_on_warning= (!ignore &&
                             (thd->variables.sql_mode &
                              (MODE_STRICT_TRANS_TABLES |
@@ -467,7 +467,7 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
 	  (ulong) (info.records - info.copied), (ulong) thd->cuted_fields);
 
   if (!transactional_table)
-    thd->options|=OPTION_STATUS_NO_TRANS_UPDATE;
+    thd->no_trans_update.all= TRUE;
 #ifndef EMBEDDED_LIBRARY
   if (mysql_bin_log.is_open())
   {
@@ -531,7 +531,7 @@ read_fixed_length(THD *thd, COPY_INFO &info, TABLE_LIST *table_list,
   Item_field *sql_field;
   TABLE *table= table_list->table;
   ulonglong id;
-  bool no_trans_update;
+  bool no_trans_update_stmt;
   DBUG_ENTER("read_fixed_length");
 
   id= 0;
@@ -559,7 +559,7 @@ read_fixed_length(THD *thd, COPY_INFO &info, TABLE_LIST *table_list,
 #ifdef HAVE_purify
     read_info.row_end[0]=0;
 #endif
-    no_trans_update= !table->file->has_transactions();
+    no_trans_update_stmt= !table->file->has_transactions();
 
     restore_record(table, s->default_values);
     /*
@@ -627,7 +627,7 @@ read_fixed_length(THD *thd, COPY_INFO &info, TABLE_LIST *table_list,
 
     if (write_record(thd, table, &info))
       DBUG_RETURN(1);
-    thd->no_trans_update= no_trans_update;
+    thd->no_trans_update.stmt= no_trans_update_stmt;
    
     /*
       If auto_increment values are used, save the first one for
@@ -670,12 +670,12 @@ read_sep_field(THD *thd, COPY_INFO &info, TABLE_LIST *table_list,
   TABLE *table= table_list->table;
   uint enclosed_length;
   ulonglong id;
-  bool no_trans_update;
+  bool no_trans_update_stmt;
   DBUG_ENTER("read_sep_field");
 
   enclosed_length=enclosed.length();
   id= 0;
-  no_trans_update= !table->file->has_transactions();
+  no_trans_update_stmt= !table->file->has_transactions();
 
   for (;;it.rewind())
   {
@@ -817,7 +817,7 @@ read_sep_field(THD *thd, COPY_INFO &info, TABLE_LIST *table_list,
       We don't need to reset auto-increment field since we are restoring
       its default value at the beginning of each loop iteration.
     */
-    thd->no_trans_update= no_trans_update;
+    thd->no_trans_update.stmt= no_trans_update_stmt;
     if (read_info.next_line())			// Skip to next line
       break;
     if (read_info.line_cuted)