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Bug#11764994 57900: CREATE TABLE .. SELECT ASSERTS SCALE >= 0 && PRECISION > 0 && SCALE <= PR

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Assert fails due to overflow which happens in
Item_func_int_val::fix_num_length_and_dec() as
geometry functions have max_length value equal to
max_field_size(4294967295U). The fix is to skip
max_length calculation for some boundary cases.
This commit is contained in:
Sergey Glukhov 2011-03-28 12:35:50 +04:00
commit 86c1225699
3 changed files with 20 additions and 3 deletions
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7
sql/item_func.cc
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@ -1803,9 +1803,10 @@ void Item_func_integer::fix_length_and_dec()
void Item_func_int_val::fix_num_length_and_dec()
{
max_length= args[0]->max_length - (args[0]->decimals ?
args[0]->decimals + 1 :
0) + 2;
ulonglong tmp_max_length= (ulonglong ) args[0]->max_length -
(args[0]->decimals ? args[0]->decimals + 1 : 0) + 2;
max_length= tmp_max_length > (ulonglong) max_field_size ?
max_field_size : (uint32) tmp_max_length;
uint tmp= float_length(decimals);
set_if_smaller(max_length,tmp);
decimals= 0;