Fix "unnamed prepared statment does not exist" error.  This is caused by pgpool's internal query, which breaks client's unnamed statements. To fix this, if extended query is used (calling pool_is_doing_extended_query_message()), named statement/portal for internal are used for internal query.
Fix "unnamed prepared statment does not exist" error.  This is caused
by pgpool's internal query, which breaks client's unnamed statements.
To fix this, if extended query is used (calling
pool_is_doing_extended_query_message()), named statement/portal for
internal are used for internal query.

treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres