bugfix: Item_func_like::print() was losing ESCAPE clause

Author: vuvova

mysql-test/r/func_like.result

@@ -254,3 +254,11 @@ DROP TABLE t1;
 #
 # End of 10.1 tests
 #
+create view v1 as select 'foo!' like 'foo!!', 'foo!' like 'foo!!' escape '!';
+show create view v1;
+View	Create View	character_set_client	collation_connection
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select ('foo!' like 'foo!!') AS `'foo!' like 'foo!!'`,('foo!' like 'foo!!' escape '!') AS `'foo!' like 'foo!!' escape '!'`	koi8r	koi8r_general_ci
+select * from v1;
+'foo!' like 'foo!!'	'foo!' like 'foo!!' escape '!'
+0	1
+drop view v1;

mysql-test/t/func_like.test

@@ -185,3 +185,11 @@ DROP TABLE t1;
 --echo #
 --echo # End of 10.1 tests
 --echo #
+
+#
+# Item_func_line::print()
+#
+create view v1 as select 'foo!' like 'foo!!', 'foo!' like 'foo!!' escape '!';
+show create view v1;
+select * from v1;
+drop view v1;

sql/item_cmpfunc.cc

@@ -5076,6 +5076,22 @@ bool Item_bool_func2::count_sargable_conds(void *arg)
   return 0;
 }
 
+void Item_func_like::print(String *str, enum_query_type query_type)
+{
+  str->append('(');
+  args[0]->print(str, query_type);
+  str->append(' ');
+  str->append(func_name());
+  str->append(' ');
+  args[1]->print(str, query_type);
+  if (escape_used_in_parsing)
+  {
+    str->append(STRING_WITH_LEN(" escape "));
+    escape_item->print(str, query_type);
+  }
+  str->append(')');
+}
+
 
 longlong Item_func_like::val_int()
 {

sql/item_cmpfunc.h

@@ -1868,10 +1868,7 @@ class Item_func_like :public Item_bool_func2
     escape_used_in_parsing(escape_used), use_sampling(0) {}
   longlong val_int();
   enum Functype functype() const { return LIKE_FUNC; }
-  void print(String *str, enum_query_type query_type)
-  {
-    Item_func::print_op(str, query_type);
-  }
+  void print(String *str, enum_query_type query_type);
   CHARSET_INFO *compare_collation() const
   { return cmp_collation.collation; }
   cond_result eq_cmp_result() const