SET TRANSACTION and SQL Standard

I notice that we allow commands such as

SET TRANSACTION read only read write read only;

BEGIN TRANSACTION read only read only read only;

Unsurprisingly, these violate the SQL Standard:
* p.977 section 19.1 syntax (1)
* p.957 section 17.3 syntax (2)

Not planning on fixing it myself, but others may wish to.

-- Simon Riggs           www.2ndQuadrant.comPostgreSQL Training, Services and Support