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diff --git a/sql/item_row.h b/sql/item_row.h
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+#ifndef ITEM_ROW_INCLUDED
+#define ITEM_ROW_INCLUDED
+
+/*
+ Copyright (c) 2002, 2013, Oracle and/or its affiliates.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/**
+ Row items used for comparing rows and IN operations on rows:
+
+ @verbatim
+ (a, b, c) > (10, 10, 30)
+ (a, b, c) = (select c, d, e, from t1 where x=12)
+ (a, b, c) IN ((1,2,2), (3,4,5), (6,7,8)
+ (a, b, c) IN (select c, d, e, from t1)
+ @endverbatim
+*/
+
+
+/**
+ Item which stores (x,y,...) and ROW(x,y,...).
+ Note that this can be recursive: ((x,y),(z,t)) is a ROW of ROWs.
+*/
+class Item_row: public Item_fixed_hybrid,
+ private Item_args,
+ private Used_tables_and_const_cache,
+ private With_subquery_cache,
+ private With_sum_func_cache
+{
+ table_map not_null_tables_cache;
+ /**
+ If elements are made only of constants, of which one or more are
+ NULL. For example, this item is (1,2,NULL), or ( (1,NULL), (2,3) ).
+ */
+ bool with_null;
+public:
+ Item_row(THD *thd, List<Item> &list)
+ :Item_fixed_hybrid(thd), Item_args(thd, list),
+ not_null_tables_cache(0), with_null(0)
+ { }
+ Item_row(THD *thd, Item_row *row)
+ :Item_fixed_hybrid(thd), Item_args(thd, static_cast<Item_args*>(row)),
+ Used_tables_and_const_cache(),
+ With_sum_func_cache(*row),
+ not_null_tables_cache(0), with_null(0)
+ { }
+
+ bool with_subquery() const { DBUG_ASSERT(fixed); return m_with_subquery; }
+ enum Type type() const { return ROW_ITEM; };
+ const Type_handler *type_handler() const { return &type_handler_row; }
+ Field *create_tmp_field_ex(MEM_ROOT *root, TABLE *table, Tmp_field_src *src,
+ const Tmp_field_param *param)
+ {
+ return NULL; // Check with Vicentiu why it's called for Item_row
+ }
+ void illegal_method_call(const char *);
+ bool is_null() { return null_value; }
+ void make_send_field(THD *thd, Send_field *)
+ {
+ illegal_method_call((const char*)"make_send_field");
+ };
+ double val_real()
+ {
+ illegal_method_call((const char*)"val");
+ return 0;
+ };
+ longlong val_int()
+ {
+ illegal_method_call((const char*)"val_int");
+ return 0;
+ };
+ String *val_str(String *)
+ {
+ illegal_method_call((const char*)"val_str");
+ return 0;
+ };
+ my_decimal *val_decimal(my_decimal *)
+ {
+ illegal_method_call((const char*)"val_decimal");
+ return 0;
+ };
+ bool get_date(THD *thd, MYSQL_TIME *ltime, date_mode_t fuzzydate)
+ {
+ illegal_method_call((const char*)"get_date");
+ return true;
+ }
+ bool fix_fields(THD *thd, Item **ref);
+ void fix_after_pullout(st_select_lex *new_parent, Item **ref, bool merge);
+ void cleanup();
+ void split_sum_func(THD *thd, Ref_ptr_array ref_pointer_array,
+ List<Item> &fields, uint flags);
+ bool with_sum_func() const { return m_with_sum_func; }
+ With_sum_func_cache* get_with_sum_func_cache() { return this; }
+ table_map used_tables() const { return used_tables_cache; };
+ bool const_item() const { return const_item_cache; };
+ void update_used_tables()
+ {
+ used_tables_and_const_cache_init();
+ used_tables_and_const_cache_update_and_join(arg_count, args);
+ }
+ table_map not_null_tables() const { return not_null_tables_cache; }
+ virtual void print(String *str, enum_query_type query_type);
+
+ bool walk(Item_processor processor, bool walk_subquery, void *arg)
+ {
+ if (walk_args(processor, walk_subquery, arg))
+ return true;
+ return (this->*processor)(arg);
+ }
+ Item *transform(THD *thd, Item_transformer transformer, uchar *arg);
+ bool eval_not_null_tables(void *opt_arg);
+ bool find_not_null_fields(table_map allowed);
+
+ uint cols() const { return arg_count; }
+ Item* element_index(uint i) { return args[i]; }
+ Item** addr(uint i) { return args + i; }
+ bool check_cols(uint c);
+ bool null_inside() { return with_null; };
+ void bring_value();
+
+ Item* propagate_equal_fields(THD *thd, const Context &ctx, COND_EQUAL *cond)
+ {
+ Item_args::propagate_equal_fields(thd, Context_identity(), cond);
+ return this;
+ }
+
+ bool excl_dep_on_table(table_map tab_map)
+ {
+ return Item_args::excl_dep_on_table(tab_map);
+ }
+
+ bool excl_dep_on_grouping_fields(st_select_lex *sel)
+ {
+ return Item_args::excl_dep_on_grouping_fields(sel);
+ }
+
+ bool excl_dep_on_in_subq_left_part(Item_in_subselect *subq_pred)
+ {
+ return Item_args::excl_dep_on_in_subq_left_part(subq_pred);
+ }
+
+ bool check_vcol_func_processor(void *arg) {return FALSE; }
+ Item *get_copy(THD *thd)
+ { return get_item_copy<Item_row>(thd, this); }
+ Item *build_clone(THD *thd);
+};
+
+#endif /* ITEM_ROW_INCLUDED */