## E.231. Release 8.1.13

Release date: 2008-06-12

This release contains one serious and one minor bug fix over 8.1.12. For information about new features in the 8.1 major release, see Section E.244.

### E.231.1. Migration to Version 8.1.13

A dump/restore is not required for those running 8.1.X. However, if you are upgrading from a version earlier than 8.1.2, see Section E.242.

### E.231.2. Changes

- Make `pg_get_ruledef()` parenthesize negative constants (Tom)

  Before this fix, a negative constant in a view or rule might be dumped as, say, `-42::integer`, which is subtly incorrect: it should be `(-42)::integer` due to operator precedence rules. Usually this would make little difference, but it could interact with another recent patch to cause PostgreSQL to reject what had been a valid `SELECT DISTINCT` view query. Since this could result in pg_dump output failing to reload, it is being treated as a high-priority fix. The only released versions in which dump output is actually incorrect are 8.3.1 and 8.2.7.

- Make `ALTER AGGREGATE ... OWNER TO` update `pg_shdepend` (Tom)

  This oversight could lead to problems if the aggregate was later involved in a `DROP OWNED` or `REASSIGN OWNED` operation.