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option to free_root() to not my_free() the blocks

fixed bug/updated count_distinct2 test
changed reset in count distinct to avoid calls to my_free()


include/my_sys.h:
  option to free_root() not to do my_free()
include/my_tree.h:
  reset_tree()
mysql-test/r/count_distinct2.result:
  added group by test
mysql-test/t/count_distinct2.test:
  group by test + fixed bug - need to drop table
mysys/my_alloc.c:
  mark_blocks_free()
mysys/tree.c:
  reset_tree()
sql/item_sum.cc:
  in count distinct reset_tree instead of delete_tree
This commit is contained in:
unknown
2001-05-12 19:50:51 -06:00
parent 6498429624
commit b7b7eb9c05
7 changed files with 71 additions and 6 deletions

View File

@ -62,6 +62,9 @@ void init_tree(TREE *tree,uint default_alloc_size, int element_size,
qsort_cmp2 compare, my_bool with_delete,
void (*free_element)(void*));
void delete_tree(TREE*);
void reset_tree(TREE*);
/* similar to delete tree, except we do not my_free() blocks in mem_root
*/
#define is_tree_inited(tree) ((tree)->root != 0)
/* Functions on leafs */