Hi Julien, > The extra field I've proposed would increase the number of records, as it > needs to be a part of the key.
To get an increase in the number of records that means that the same statement would appear at top level AND nested level. This seems a corner case with very low (neglectible) occurence rate. Did I miss something ? Regards PAscal -- Sent from: https://www.postgresql-archive.org/PostgreSQL-hackers-f1928748.html