Current open 6.3 issues

Here they are:
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GROUP BY bug of duplicates
GROUP BY nulls bug
ORDER BY nulls(Vadim?)
many OR's exhaust optimizer memory(Vadim?)
max tuple length settings(Darren & Peter)
pg_user defaults to world-readable until passwords used(Todd)
psql .psqlrc file startup(Andrew)
self-join optimizer bug
subselects(Vadim)