Bug#16084594 USER_VAR ITEM IN 'LOAD FILE QUERY' WAS NOT

PROPERLY QUOTED IN BINLOG FILE
Problem: In load data file query, User variables are allowed
inside "Into_list" and "Set_list". These user variables used
inside these two lists are not properly guarded with backticks
while server is writting into binlog. Hence user variable names
like a` cannot be used in this context.

Fix: Properly quote these variables while
writting into binlog

mysql-test/r/func_compress.result:
  changing result file
mysql-test/r/variables.result:
  changing result file
mysql-test/suite/binlog/r/binlog_stm_mix_innodb_myisam.result:
  changing result file
sql/item_func.cc:
  Quote the user variable items

1 files changed, 2 insertions, 2 deletions

diff --git a/sql/item_func.cc b/sql/item_func.cc
index 21efaf83aa8..6cf78a38ded 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -4725,7 +4725,7 @@ enum Item_result Item_func_get_user_var::result_type() const
 void Item_func_get_user_var::print(String *str, enum_query_type query_type)
 {
   str->append(STRING_WITH_LEN("(@"));
-  str->append(name.str,name.length);
+  append_identifier(current_thd, str, name.str, name.length);
   str->append(')');
 }
 
@@ -4826,7 +4826,7 @@ my_decimal* Item_user_var_as_out_param::val_decimal(my_decimal *decimal_buffer)
 void Item_user_var_as_out_param::print(String *str, enum_query_type query_type)
 {
   str->append('@');
-  str->append(name.str,name.length);
+  append_identifier(current_thd, str, name.str, name.length);
 }