transformAlterStmt() use these routines, instead of having lots of
duplicate (not to mention should-have-been-duplicate) code.
Adding a column with a CHECK constraint actually works now,
and the tests to reject unsupported DEFAULT and NOT NULL clauses
actually fire now.  ALTER TABLE ADD PRIMARY KEY works, modulo
having to have created the column(s) NOT NULL already.

Tatsuo.

regarding timezone_hour, timezone_minute vs. tz_hour, tz_minute.
Document the former.

current_timestamp, current_date for ODBC compatibility.

Add more functions to odbc.sql catalog extension, use new CREATE OR
REPLACE FUNCTION.

Document iODBC/unixODBC build options.

output (from pdfjadetex).  Also updated instructions to install documentation
processing toolchain.

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.