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c2c93fc6e4
Make differentiation between pullout for merge and pulout of outer field during exists2in transformation. In last case the field was outer and so we can safely start from name resolution context of the SELECT where it was pulled. Old behavior lead to inconsistence between list of tables and outer name resolution context (which skips one SELECT for merge purposes) which creates problem vor name resolution.
92 lines
2.9 KiB
C++
92 lines
2.9 KiB
C++
#ifndef ITEM_ROW_INCLUDED
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#define ITEM_ROW_INCLUDED
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/*
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Copyright (c) 2002, 2010, Oracle and/or its affiliates.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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class Item_row: public Item
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{
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Item **items;
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table_map used_tables_cache, not_null_tables_cache;
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uint arg_count;
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bool const_item_cache;
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bool with_null;
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public:
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Item_row(List<Item> &);
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Item_row(Item_row *item):
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Item(),
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items(item->items),
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used_tables_cache(item->used_tables_cache),
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not_null_tables_cache(0),
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arg_count(item->arg_count),
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const_item_cache(item->const_item_cache),
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with_null(0)
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{}
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Item_row(Item *item);
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enum Type type() const { return ROW_ITEM; };
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void illegal_method_call(const char *);
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bool is_null() { return null_value; }
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void make_field(Send_field *)
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{
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illegal_method_call((const char*)"make_field");
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};
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double val_real()
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{
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illegal_method_call((const char*)"val");
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return 0;
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};
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longlong val_int()
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{
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illegal_method_call((const char*)"val_int");
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return 0;
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};
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String *val_str(String *)
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{
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illegal_method_call((const char*)"val_str");
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return 0;
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};
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my_decimal *val_decimal(my_decimal *)
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{
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illegal_method_call((const char*)"val_decimal");
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return 0;
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};
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bool fix_fields(THD *thd, Item **ref);
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void fix_after_pullout(st_select_lex *new_parent, Item **ref, bool merge);
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void cleanup();
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void split_sum_func(THD *thd, Item **ref_pointer_array, List<Item> &fields);
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table_map used_tables() const { return used_tables_cache; };
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bool const_item() const { return const_item_cache; };
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enum Item_result result_type() const { return ROW_RESULT; }
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Item_result cmp_type() const { return ROW_RESULT; }
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void update_used_tables();
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table_map not_null_tables() const { return not_null_tables_cache; }
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virtual void print(String *str, enum_query_type query_type);
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bool walk(Item_processor processor, bool walk_subquery, uchar *arg);
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Item *transform(Item_transformer transformer, uchar *arg);
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bool eval_not_null_tables(uchar *opt_arg);
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uint cols() { return arg_count; }
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Item* element_index(uint i) { return items[i]; }
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Item** addr(uint i) { return items + i; }
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bool check_cols(uint c);
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bool null_inside() { return with_null; };
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void bring_value();
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bool check_vcol_func_processor(uchar *int_arg) {return FALSE; }
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};
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#endif /* ITEM_ROW_INCLUDED */
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