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include/my_global.h:
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sql/filesort.cc:
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sql/handler.cc:
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This commit is contained in:
unknown
2003-03-16 19:17:54 +02:00
parent 59bf6f6ea5 bfbb0ad69d
commit a821703912
196 changed files with 11754 additions and 904 deletions
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63
sql/sql_analyse.cc
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@ -240,14 +240,16 @@ bool test_if_number(NUM_INFO *info, const char *str, uint str_len)
}
else
return 0;
} //test_if_number
}
// Stores the biggest and the smallest value from current 'info'
// to ev_num_info
// If info contains an ulonglong number, which is bigger than
// biggest positive number able to be stored in a longlong variable
// and is marked as negative, function will return 0, else 1.
/*
Stores the biggest and the smallest value from current 'info'
to ev_num_info
If info contains an ulonglong number, which is bigger than
biggest positive number able to be stored in a longlong variable
and is marked as negative, function will return 0, else 1.
*/
bool get_ev_num_info(EV_NUM_INFO *ev_info, NUM_INFO *info, const char *num)
{
@ -275,11 +277,13 @@ void free_string(String *s)
s->free();
}
void field_str::add()
{
char buff[MAX_FIELD_WIDTH], *ptr;
String s(buff, sizeof(buff),&my_charset_bin), *res;
ulong length;
TREE_ELEMENT *element;
if (!(res = item->val_str(&s)))
{
@ -414,9 +418,11 @@ void field_real::add()
room_in_tree = 0; // Remove tree, out of RAM ?
delete_tree(&tree);
}
// if element->count == 1, this element can be found only once from tree
// if element->count == 2, or more, this element is already in tree
else if (element->count == 1 && (tree_elements++) > pc->max_tree_elements)
/*
if element->count == 1, this element can be found only once from tree
if element->count == 2, or more, this element is already in tree
*/
else if (element->count == 1 && (tree_elements++) >= pc->max_tree_elements)
{
room_in_tree = 0; // Remove tree, too many elements
delete_tree(&tree);
@ -445,6 +451,7 @@ void field_real::add()
}
} // field_real::add
void field_longlong::add()
{
char buff[MAX_FIELD_WIDTH];
@ -467,9 +474,11 @@ void field_longlong::add()
room_in_tree = 0; // Remove tree, out of RAM ?
delete_tree(&tree);
}
// if element->count == 1, this element can be found only once from tree
// if element->count == 2, or more, this element is already in tree
else if (element->count == 1 && (tree_elements++) > pc->max_tree_elements)
/*
if element->count == 1, this element can be found only once from tree
if element->count == 2, or more, this element is already in tree
*/
else if (element->count == 1 && (tree_elements++) >= pc->max_tree_elements)
{
room_in_tree = 0; // Remove tree, too many elements
delete_tree(&tree);
@ -521,9 +530,11 @@ void field_ulonglong::add()
room_in_tree = 0; // Remove tree, out of RAM ?
delete_tree(&tree);
}
// if element->count == 1, this element can be found only once from tree
// if element->count == 2, or more, this element is already in tree
else if (element->count == 1 && (tree_elements++) > pc->max_tree_elements)
/*
if element->count == 1, this element can be found only once from tree
if element->count == 2, or more, this element is already in tree
*/
else if (element->count == 1 && (tree_elements++) >= pc->max_tree_elements)
{
room_in_tree = 0; // Remove tree, too many elements
delete_tree(&tree);
@ -604,14 +615,16 @@ bool analyse::end_of_records()
func_items[8]->null_value = 1;
else
func_items[8]->set(res->ptr(), res->length(), res->charset());
// count the dots, quotas, etc. in (ENUM("a","b","c"...))
// if tree has been removed, don't suggest ENUM.
// treemem is used to measure the size of tree for strings,
// tree_elements is used to count the elements in tree in case of numbers.
// max_treemem tells how long the string starting from ENUM("... and
// ending to ..") shall at maximum be. If case is about numbers,
// max_tree_elements will tell the length of the above, now
// every number is considered as length 1
/*
count the dots, quotas, etc. in (ENUM("a","b","c"...))
If tree has been removed, don't suggest ENUM.
treemem is used to measure the size of tree for strings,
tree_elements is used to count the elements
max_treemem tells how long the string starting from ENUM("... and
ending to ..") shall at maximum be. If case is about numbers,
max_tree_elements will tell the length of the above, now
every number is considered as length 1
*/
if (((*f)->treemem || (*f)->tree_elements) &&
(*f)->tree.elements_in_tree &&
(((*f)->treemem ? max_treemem : max_tree_elements) >
@ -654,6 +667,7 @@ bool analyse::end_of_records()
ans.append("DATETIME", 8);
break;
case FIELD_TYPE_DATE:
case FIELD_TYPE_NEWDATE:
ans.append("DATE", 4);
break;
case FIELD_TYPE_SET:
@ -665,9 +679,6 @@ bool analyse::end_of_records()
case FIELD_TYPE_TIME:
ans.append("TIME", 4);
break;
case FIELD_TYPE_NEWDATE:
ans.append("NEWDATE", 7);
break;
case FIELD_TYPE_DECIMAL:
ans.append("DECIMAL", 7);
// if item is FIELD_ITEM, it _must_be_ Field_num in this case