rather than having its own somewhat half-baked notion of what a type
declaration looks like.  This is necessary now to ensure that plpgsql
will think a 'timestamp' variable has the same semantics as 'timestamp'
does in the main SQL grammar; and it should avoid divergences in future.

Oliver Elphick

text output.

type coercion after failing to find an exact match in pg_proc, but before
considering interpretations that involve a function call with one or
more argument type coercions.  This avoids surprises wherein what looks
like a type coercion is interpreted as coercing to some third type and
then to the destination type, as in Dave Blasby's bug report of 3-Oct-01.
See subsequent discussion in pghackers.

'aggname (aggtype)'.  The old syntax 'aggname aggtype' is still accepted
for backwards compatibility.  Fix pg_dump, which was actually broken for
most cases of user-defined aggregates.  Clean up error messages associated
with these commands.

definition without changing the function's OID, thereby not breaking
rules, views, triggers, etc that depend on it.  From Gavin Sherry.

> > > > >   and --enable-unicode-convertion if it ought to work correctly
> > > > >   with Tcl/Tk >= 8.1 (client or server side).
> > > > >
> > > > > - PL/Tcl needs to be changed to use pg_do_encoding_conversion
> > > > >   if it runs on a Tcl version >= 8.1 .
> > >
> > > > I'll do pl/tcl part in the next version of patch. Using this approach we
> > > > can eliminate overhead for databases in UNICODE.
> > >
> > > Any progress on this?  I'd prefer to get rid of this --enable-pltcl-utf
> > > option before release.
> >
> > Done
> >
> > Next version removes --enable-pltcl-utf switch and enables embedded
> > utf conversion of pgsql if tcl version >=8.1 and --enable-unicode-conversion

from the config file, so that these changes will propagate to backends
started later.  Already-started backends continue to ignore changes
in these variables.

upper limit on what we will believe from sysconf(_SC_OPEN_MAX).  The
default value is 1000, so that under ordinary conditions it won't
affect the behavior.  But on platforms where the kernel promises far
more than it can deliver, this can be used to prevent running out of
file descriptors.  See numerous past discussions, eg, pgsql-hackers
around 23-Dec-2000.

flexible about the extension of the graphic files, allow for other formats
in print output.  (Generating these formats is not implemented yet.)