On page 170 there is the following statement:
…add a unique index on the user and product_id fields…
As the generated field is named user_id, I suppose it should be:
…add a unique index on the user_id and product_id fields…
On page 170 there is the following statement:
…add a unique index on the user and product_id fields…
As the generated field is named user_id, I suppose it should be:
…add a unique index on the user_id and product_id fields…
You are right! This will be fixed in the next release.