[sqlite] INSERT OR REPLACE in a virtual table implementation....

[dave]

I have a virtual table implementation, and I would like to use the INSERT OR
REPLACE syntax to simplify actions for the user.  In my xUpdate method, for
the case where insertion is occuring,

else if ( argc > 1 && SQLITE_NULL == sqlite3_value_type ( argv[0] ) ) {

I do check a uniqueness constraint, and return an error
SQLITE_CONSTRAINT_UNIQUE, which I presume is the right thing to do.
 
So, my question is, is this the right thing to do to get INSERT OR REPLACE
on a virtual table, or something else, or maybe that syntax is not supported
on virtual tables?
 
Thanks,
 
-dave
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