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COUNT(DISTINCT field) now honors charsets

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bar@bar.mysql.r18.ru 2002-12-19 16:42:35 +04:00
commit 8a28d5a365
2 changed files with 29 additions and 17 deletions
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5
sql/item_sum.h
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@ -156,7 +156,8 @@ class Item_sum_count_distinct :public Item_sum_int
TMP_TABLE_PARAM *tmp_table_param;
TREE tree;
uint key_length;
CHARSET_INFO *key_charset;
// calculated based on max_heap_table_size. If reached,
// walk the tree and dump it into MyISAM table
uint max_elements_in_tree;
@ -175,6 +176,8 @@ class Item_sum_count_distinct :public Item_sum_int
int tree_to_myisam();
friend int composite_key_cmp(void* arg, byte* key1, byte* key2);
friend int simple_str_key_cmp(void* arg, byte* key1, byte* key2);
friend int simple_raw_key_cmp(void* arg, byte* key1, byte* key2);
friend int dump_leaf(byte* key, uint32 count __attribute__((unused)),
Item_sum_count_distinct* item);