I'm also very interested by collecting "search_path" information for statements, but this information may not be unique for pg_stat_statements key (dbid,userid,queryid) ...
How would this 1-N relation be handled ? 1/ just catch initial session_info for each (dbid,userid,queryid), 2/ adding a sessid field in pgss key, and a table for distinct sessid,session_info values, 3/ store session_info in an array, 4/ ... -- Sent from: http://www.postgresql-archive.org/PostgreSQL-hackers-f1928748.html
