On 10/16/17, dave <d...@ziggurat29.com> wrote: > Hi, I am building a system which involves a number of virtual table > implementations. They are all read-only, but will be involved in a bunch of > joins amongst themselves. My question is this: > > the documentation > http://sqlite.org/vtab.html#tabfunc2 at 2.12 xRowid > seems (to my reading) to be always required to be implemented. But does it > really? Is it ever used for read-only tables? I have never seen it > invoked, and I have been blithely ignoring implementing it, but I wonder if > there is a case where it would be invoked for a read-only query and so I am > tempting fate.
I don't think xRowid is ever called if you create a WITHOUT ROWID virtual table (https://sqlite.org//vtab.html#worid). But, just to be safe, I think I would include a stub function that always returned 0. -- D. Richard Hipp d...@sqlite.org _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
