I get the following error after upgrading from Postgres 10.10 -> Postgres 11.4
After upgrade completes when running "vacuumdb -p 5432 -U postgres -a -Z --analyze-in-stages" I get the following error: vacuumdb: processing database "#DBNAME#": Generating minimal optimizer statistics (1 target) vacuumdb: vacuuming of database "#DBNAME#" failed: ERROR: could not access status of transaction 6095 DETAIL: Could not open file "pg_xact/0000": No such file or directory.
After logging into the database using psql and running "VACUUM FULL #table#" for each table I can see it's an issue with pg_statistic
Running VACUUM FULL on table pg_statistic psql.exe : ERROR: could not access status of transaction 6095 At line:23 char:9 + psql.exe -d $db -c "vacuum full $table" + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (ERROR: could n...ransaction 6095:String) [], RemoteException + FullyQualifiedErrorId : NativeCommandError DETAIL: Could not open file "pg_xact/0000": No such file or directory.
Any ideas as to how this could have happened or how I can fix this issue? I had the issue once on another server and running VACUUM FULL on entire database fixed the error.
Note: I ran "VACUUM FREEZE ANALYZE" before the upgrade on every database and there were no errors.
