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Fix UNION

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New faster list iterators
Change list code to be simpler and faster
Optimize count(distinct)
New error messages for UNION
Make create_tmp_table more general to be usable by UNION
This commit is contained in:
monty@tik.mysql.fi
2001-08-02 06:29:50 +03:00
parent 423f2851c5
commit b13d453d50
57 changed files with 798 additions and 472 deletions
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3
sql/sql_lex.h
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@@ -115,7 +115,8 @@ typedef struct st_select_lex {
List<List_item> when_list;
SQL_LIST order_list,table_list,group_list;
List<Item> item_list;
List<String> interval_list,use_index, *use_index_ptr, ignore_index, *ignore_index_ptr;
List<String> interval_list,use_index, *use_index_ptr,
ignore_index, *ignore_index_ptr;
List<Item_func_match> ftfunc_list;
uint in_sum_expr, sort_default;
bool create_refs;