different privilege bits (might as well make use of the space we were
wasting on padding).  EXECUTE and USAGE bits for procedures, languages
now are separate privileges instead of being overlaid on SELECT.  Add
privileges for namespaces and databases.  The GRANT and REVOKE commands
work for these object types, but we don't actually enforce the privileges
yet...

Use flex flags -CF.  Pass the to-be-scanned string around as StringInfo
type, to avoid querying the length repeatedly.  Clean up some code and
remove lex-compatibility cruft.  Escape backslash sequences inline.  Use
flex-provided yy_scan_buffer() function to set up input, rather than using
myinput().

_RETURN now, since there's no need to keep 'em unique anymore.

(tgrelid, tgname).  This provides an additional check on trigger name
uniqueness per-table (which was already enforced by the code anyway).
With this change, RelationBuildTriggers will read the triggers in
order by tgname, since it's scanning using this index.  Since a
predictable trigger ordering has been requested for some time, document
this behavior as a feature.  Also document that rules fire in name
order, since yesterday's changes to pg_rewrite indexing cause that too.

per previous discussion.

DROP RULE and COMMENT ON RULE syntax adds an 'ON tablename' clause,
similar to TRIGGER syntaxes.  To allow loading of existing pg_dump
files containing COMMENT ON RULE, the COMMENT code will still accept
the old syntax --- but only if the target rulename is unique across
the whole database.

< 	  without using PL/PgSQL EXECUTE, needs cached plan invalidation
> 	  without using PL/PgSQL EXECUTE, needs cache prevention/invalidation

> 	o Abort all, some or, no SET changes made in an aborted transaction

> 	o Abort all or commit all SET changes made in an aborted transaction

> 	o Allow Java server-side programming, http://pljava.sourceforge.net
> 	  [java]

> * Rod is Rod Taylor <rbt@zort.ca>

> * Cache most recent query plan(s) (Neil) [prepare]
> * Neil is Neil Conway <nconway@klamath.dyndns.org>

>   using a sequential scan for highest/lowest values (Oleg)

Add to DROP COLUMN description.

> 	o Abort SET changes made in aborted transactions (?)

> * Add BETWEEN ASYMMETRIC/SYMMETRIC (Christopher)
> * Christopher is Christopher Kings-Lynne <chriskl@familyhealth.com.au>

> * Add BSD-licensed qsort() for Solaris

> 	o Allow SHOW to output as a query result, like EXPLAIN

> * Try flex flags -Cf and -CF to see if performance improves

> * Add utility to compute accurate random_page_cost value

an 'opclass owner' column in pg_opclass.  Nothing is done with it at
present, but since there are plans to invent a CREATE OPERATOR CLASS
command soon, we'll probably want DROP OPERATOR CLASS too, which
suggests that a notion of ownership would be a good idea.

> * Allow easy display of usernames in a group