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backport fix for the bug #803: INTERVAL(NULL, ....)

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unknown
2003-07-14 12:39:10 +05:00
parent c4381bb0c6
commit e45b9ab481
2 changed files with 3 additions and 6 deletions
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2
mysql-test/r/func_set.result
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@ -27,4 +27,4 @@ find_in_set("abc","abc") find_in_set("ab","abc") find_in_set("abcd","abc")
1 0 0
select interval(null, 1, 10, 100);
interval(null, 1, 10, 100)
NULL
-1

7
sql/item_cmpfunc.cc
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@ -311,7 +311,7 @@ void Item_func_interval::split_sum_func(List<Item> &fields)
}
/*
return NULL if null value,
return -1 if null value,
0 if lower than lowest
1 - arg_count if between args[n] and args[n+1]
arg_count+1 if higher than biggest argument
@ -321,10 +321,7 @@ longlong Item_func_interval::val_int()
{
double value= item->val();
if (item->null_value)
{
null_value= 1;
return -1;
}
return -1; // -1 if NULL
if (intervals)
{ // Use binary search to find interval
uint start= 0, end= arg_count - 1;