bhavani dba <dbabhavani@xxxxxxxxx> writes: > postgres=# CREATE EXTENSION pg_stat_statements; > ERROR: could not load library > "/home/postgres/bin/pgsql/15/lib/pg_stat_statements.so": > /home/postgres/bin/pgsql/15/lib/pg_stat_statements.so: undefined symbol: > InitMaterializedSRF This certainly looks like you are trying to load a v15 extension into a pre-v15 server (since the InitMaterializedSRF function didn't exist in prior versions). I'm going to go out on a limb and guess that you just installed v15 and forgot to restart the server, so that what's running is still v14 or before. If so, you probably also forgot the pg_upgrade step --- you can't simply start a new major version in an old one's data directory. regards, tom lane
