> -----Original Message----- > From: sqlite-users > [mailto:sqlite-users-boun...@mailinglists.sqlite.org] On > Behalf Of Hick Gunter > > In our virtual table implementations, we are using the rowid > to return the location of the record in the backing store > (e.g. record offset in the file used as a backing store, > offset within a shared memory section or maybe even the > memory address of the record image) and also implement fast > lookup by rowid. > > If you don't require such ability, you may as well return a > constant, a global counter value or a counter that is reset > in the xFilter function. > > So, YES you always have to implement the xRowid method. > > It will only get called if your SELECT statement explicitly > mentions it. No "INTEGER PRIMARY KEY" magic is performed for > virtual tables. > Thanks for your input as well; I somehow missed it until just now. Cheers! -dave
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