On Wed, Nov 12, 2008 at 10:24 AM, Phil Longstaff <[EMAIL PROTECTED]> wrote: > For those on the gnucash user list, a new SQL backend is in development. An > issue has arisen, and I need to get input from users, not just developers. > > Rolf Leggewie has run into some problems with the SQL backend > (http://bugzilla.gnome.org/show_bug.cgi?id=560165) - he wants to add another > SQL table to key off the account 'code' field. However, the 'code' field is > varchar(2048) which is too big to be a primary key in mysql. I responded that > earlier discussion on this mailing list (mainly/only by Derek) had been that > strings should be unlimited, and since SQL requires *some* limit, I chose > 2048. > > For those who don't know SQL, for a variable length string (varchar), the > database engine will only allocate enough space to hold the value, so allowing > 2048 and storing only 10 chars uses about the same disk space as allowing 128 > and storing the same 10. The problem in this case is that one user wants to > be able to index some more information by the account code, but the fields > used > as the index is too large. > > I'd have to look back, but I think Derek's reply was the only one. I'd like > to open the topic again, because of Rolf's problem. Can anyone think of a > reason that account code size limit cannot be reduced to a smaller value (e.g. > 32)? Will anyone ever enter an account code longer than that?
What's the maximum length primary key in mysql? Is that where the 32 came from? Why is mysql an issue? I thought the backend was going to be sqlite3? Perhaps you are doing a generic sql layer, designed to talk any one of many target databases, or the specific target database has changed? /Don > > Phil > > > > _______________________________________________ > gnucash-user mailing list > [EMAIL PROTECTED] > https://lists.gnucash.org/mailman/listinfo/gnucash-user > ----- > Please remember to CC this list on all your replies. > You can do this by using Reply-To-List or Reply-All. > _______________________________________________ gnucash-devel mailing list gnucash-devel@gnucash.org https://lists.gnucash.org/mailman/listinfo/gnucash-devel
