Pawel Pierscionek [pawel@astercity.net] reported about the
following case 1([SQL] drop table in pgsql).
Michael Contzen [mcontzen@dohle.com] reported about the
following case 2(PL/PGSQL bug using aggregates).
You can find it from pgsql-hackers archive.

1. PL/pgSQL can't execute UTILITY commands.
   SPI_prepare() doesn't copy(save) the utilityStmt member of
   Query type nodes,because copyObject() is not implemented
   for nodes of (Create/Destroy etc)Stmt type.

2. Aggregates in PL/pgSQL cause wrong results.

...
   It's a list including Aggreg type nodes which exist in
   TargetList(i.e Aggreg type nodes are common to aggs
   member list and TargetList).
   AFAIC the common pointer is not copied to the same
   pointer by copyObject() function.
   In my patch I reconstruct aggs member node from
   new(copied) Agg type node.
   Is it proper to use set_agg_tlist_references() function to
   reconstruct aggs member node for Agg type nodes ?

Thanks.

Hiroshi Inoue
Inoue@tpf.co.jp

EXPLAIN all indices used.

it is now only mergejoin.

members to be clearer.  Fix cost computation for these.

    below  is  the patch to have views to override the permission
    checks for the accessed tables. Now we can do the following:

    CREATE VIEW db_user AS SELECT
         usename,
         usesysid,
         usecreatedb,
         usetrace,
         usecatupd,
         '**********'::text as passwd,
         valuntil
        FROM pg_user;

    REVOKE ALL ON pg_user FROM public;
    REVOKE ALL ON db_user FROM public;
    GRANT SELECT ON db_user TO public;

(Have to re-visit readfuncs.c)

Add lock to i386 asm.

with supporting code.

Creates SubLink node in gram.y.

psql.c patch for newatttypmod field.

varchar length.

Cleans up code so attlen is always length.

Removed varchar() hack added earlier.

Will fix bug in selecting varchar() fields, and varchar() can be
variable length.

Pass List* of Aggregs into executor, and create needed array there.
No longer need to double-processs Aggregs with second copy in Query.

Fix crash when doing:

	select sum(x+1) from test where 1 > 0;