On Wed, Mar 13, 2019 at 12:20 AM Kyotaro HORIGUCHI <horiguchi.kyot...@lab.ntt.co.jp> wrote: > +Multivariate MCV (most-common values) lists are a straightforward extension > of > > "lists are *a*" is wrong?
No, that's correct. Not sure exactly what your concern is, but it's probably related to the fact that the first parent of the sentences (before "are") is plural and the second part is singular. It does seem a little odd that you can say "lists are an extension," mixing singular and plural, but English lets you do stuff like that. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
