More cleanups to appendStringInfo() usage in node/outfuncs.c.

Jan

From: Keith Parks <emkxp01@mtcc.demon.co.uk>

Looks like :vartypmod got transmuted to %vartypmod in an editing session.

More cleanups ... this is one big file *sigh*

Correct some typos...

More cleanups of appendStringInfo() function calls...

more cleanups...of note, appendStringInfo now performs like sprintf(),
where you state a format and arguments.  the old behavior required
each appendStringInfo to have to have a sprintf() before it if any
formatting was required.

Also shortened several instances where there were multiple appendStringInfo()
calls in a row, doing nothing more then adding one more word to the String,
instead of doing them all in one call.

Many more cleanups...

Allows (at least some) rules and views.
Still some trouble (crashes) with target CASE columns spanning tables,
 but lots now works.

EXPLAIN all indices used.

it is now only mergejoin.

members to be clearer.  Fix cost computation for these.

 (inside of #ifdef PARSEDEBUG blocks).

(Have to re-visit readfuncs.c)

when creating unique indexes.

From: James Hughes <jamesh@interpath.com>

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;