Summary
In picodata SQL, we may prepare stmt in one session and unprepare it in some other session, which does not know in what session the statement was prepared. Now sql_prepare_ext returns not only statement id, but also a session id. This way statement can be unprepared from other session using sql_unprepare_ext.
NO_DOC=picodata internal patch NO_CHANGELOG=picodata internal patch
Close #... Docs follow-up: not necessary / new issue