Once you are satisfied with the upgrade, you can delete the old
cluster's data directories by running the script mentioned when
- pg_upgrade completes. You can also delete the
- old installation directories
- (e.g. bin>, share>). This will not work
- if you have tablespaces inside the old data directory.
+ pg_upgrade completes. (Automatic deletion is not
+ possible if you have user-defined tablespaces inside the old data
+ directory.) You can also delete the old installation directories
+ (e.g. bin>, share>).
variant in parts of complex queries. Only the WITH>,
UNION>, INTERSECT>, EXCEPT>,
ORDER BY>, LIMIT>, OFFSET>,
- FETCH> and locking clauses can be used with TABLE>;
- the WHERE> clause and any form of aggregation cannot
+ FETCH> and FOR> locking clauses can be used
+ with TABLE>; the WHERE> clause and any form of
+ aggregation cannot
be used.