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On Dec 27, jerome brauge wrote:
> I'm trying to add an option to sql_mode.
> For this, I'm adding in sql_class.h :
> #define MODE_CONCAT_NULL_YIELDS_NULL (1ULL << 32)
> But now, my serveur doesn't start and show "Sysvar 'sql_mode' failed 'def_val <= my_set_bits(typelib.count)'"
> The problem seems to be in sys_vars.ic (Sys_var_set) :
> option.var_type|= GET_SET;
> global_var(ulonglong)= def_val;
> SYSVAR_ASSERT(typelib.count > 0);
> SYSVAR_ASSERT(typelib.count <= 64);
> SYSVAR_ASSERT(def_val <= my_set_bits(typelib.count));
> SYSVAR_ASSERT(size == sizeof(ulonglong));
> Function my_set_bits works on 32bit and typelib.count may be up to 64.
> In my case typelib.count is 33 and my_set_bits(33) returns 1, and the assert is false.
I'd say it's a bug.
It seems that we didn't have any Sys_var_set variable with more than 32
elements in the set yet, so it didn't show up.
To continue, I think, you can fix my_set_bits to work on ulonglongs.
Or create a second my_set_bits64().
Btw, I suspect you'll see more sql_mode issues caused by you going
over 32 bits.
Chief Architect MariaDB