WL#360: Having a flag for each table to annotate that it is changed

> Hi!
> 
> Adding a counter in table_list is not a good idea, as we can't easily
> access this structure when the table is updated.
> 
> We could however add a flag to the table structure:
> 
> table->updated
> 
> that is set to 1 if the table was updated in this statement.
> 
> (It would of course have to be cleared in 'table-open')
> 
> Sinisa> Then only those tables who get truly updated / deleted would be
> Sinisa> invalidated in table cache.
> 
> Yes.
> 
> Regards,
> Monty
>