| My Project
   
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 | Public Member Functions | |
| Item_func_log (Item *a) | |
| Item_func_log (Item *a, Item *b) | |
| double | val_real () | 
| const char * | func_name () const | 
| double Item_func_log::val_real | ( | void | ) |  [virtual] | 
Extended but so slower LOG function.
We have to check if all values are > zero and first one is not one as these are the cases then result is not a number.
Implements Item.
 1.7.6.1
 1.7.6.1