"Jinqiang Han" <postgresql@db.pku.edu.cn> writes:
> hi,Bruce Momjian
> I think you are wrong. multiple query in a string, such as ""SELECT;SELECT" will invoke pg_execute_query_string
twice,It won't generate two parsetree.
Try it in something other than psql. psql splits such a string into
multiple submissions to the backend --- but other interfaces don't.
regards, tom lane
