Hello hackers.
Do I understand correctly the only way know availability PREPARE it will 
appeal to pg_prepared_statements?
I think this is not a good practice. In some cases, we may not be aware of 
the PREPARE made (pgpool). 
Moreover, it seems popular question in the Internet: 
http://stackoverflow.com/questions/1193020/php-postgresql-check-if-a-prepared-statement-already-exists
What do you think about adding NOT EXIST functionality to PREPARE?
Thanks. 
-- 
Yury Zhuravlev
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company