CREATE TABLE ( .. STORAGE ..)

Hi!

Working on pluggable toaster (mostly, for JSONB improvements, see links 
below) I had found that STORAGE attribute on column is impossible to set 
  in CREATE TABLE command but COMPRESS option is possible. It looks 
unreasonable. Suggested patch implements this possibility.

[1] http://www.sai.msu.su/~megera/postgres/talks/jsonb-pgconfnyc-2021.pdf
[2] http://www.sai.msu.su/~megera/postgres/talks/jsonb-pgvision-2021.pdf
[3] http://www.sai.msu.su/~megera/postgres/talks/jsonb-pgconfonline-2021.pdf
[4] http://www.sai.msu.su/~megera/postgres/talks/bytea-pgconfonline-2021.pdf

PS I will propose pluggable toaster patch a bit later
-- 
Teodor Sigaev                      E-mail: teodor@sigaev.ru
                                       WWW: http://www.sigaev.ru/