> * Remove or relicense modules that are not under the BSD license, if possible

> * Allow ability to easily build only certain interfaces (Marc)

> 	o Allow cursors outside transactions [cursor]

> * Clarify use of 'application' and 'command' tags in SGML docs

> * Improve concurrency of hash indexes
> * Test hash index performance and recommend or discourage usage

Also, 'fourty' -> 'forty'.

> * Make single-user local access permissions the default by limiting
>   permissions on the socket file (Peter E)

---
> * Improve caching of attribute offsets when NULLs exist in the row

is different from int).

> * -Cache system catalog information in per-database files (Tom)

Improve 'pg_internal.init' relcache entry preload mechanism so that it is
safe to use for all system catalogs, and arrange to preload a realistic
set of system-catalog entries instead of only the three nailed-in-cache
indexes that were formerly loaded this way.  Fix mechanism for deleting
out-of-date pg_internal.init files: this must be synchronized with transaction
commit, not just done at random times within transactions.  Drive it off
relcache invalidation mechanism so that no special-case tests are needed.

Cache additional information in relcache entries for indexes (their pg_index
tuples and index-operator OIDs) to eliminate repeated lookups.  Also cache
index opclass info at the per-opclass level to avoid repeated lookups during
relcache load.

Generalize 'systable scan' utilities originally developed by Hiroshi,
move them into genam.c, use in a number of places where there was formerly
ugly code for choosing either heap or index scan.  In particular this allows
simplification of the logic that prevents infinite recursion between syscache
and relcache during startup: we can easily switch to heapscans in relcache.c
when and where needed to avoid recursion, so IndexScanOK becomes simpler and
does not need any expensive initialization.

Eliminate useless opening of a heapscan data structure while doing an indexscan
(this saves an mdnblocks call and thus at least one kernel call).

backend startup.

the first call of localtime() in a process will read /usr/lib/tztab or
local equivalent.  Better to do this once in the postmaster and inherit
the data by fork() than to have to do it during every backend start.

send() and probable process context swap during backend startup.

> 	o Generate failure on short COPY lines rather than pad NULLs

pghackers discussion.

to use separate LIMIT/OFFSET clauses.

'ifdef' in Makefile.

Properly handles default values.