arch-dev.sgml

Neil Conway

a column dropped.

B) Updated the documentation for the 7.4 release.

Steven Singer

releases.

Rod Taylor

> * Have SHOW ALL and pg_settings show descriptions for server-side variables(Joe)

changes between 7.3 and 7.4, for example quoting and function names.

were they doing here anyway?

this should help people get started in 7.4 as well.

Also, make :alnum: character class directly dependent on isalnum()
rather than guessing.

to be less dangerous, and often faster as well.  ExprState trees are
not kept across transaction boundaries; this eliminates problems with
resource leakage in failed transactions.  But by keeping them in a
per-transaction EState, we can safely arrange for a single ExprState
to be shared by all the expression evaluations done in a given plpgsql
function call.  (Formerly it seemed necessary to create and destroy an
ExprState for each exec_eval_simple_expr() call.)  This saves time in
any scenario where a plpgsql function executes more than one expression.
Seems to be about as fast as 7.3 for simple cases, and significantly
faster for functions that do a lot of calculations.

post-abort cleanup hooks.  I'm surprised that we have not needed this
already, but I need it now to fix a plpgsql problem, and the usefulness
for other dynamically loaded modules seems obvious.

in the RI triggers for ON DELETE/UPDATE SET DEFAULT.  The code depended
way too much on knowledge of plan structure, and yet still would fail
if the generated query got rewritten by rules.

Nigel J. Andrews

M?rcio Dick Smiderle

sequence for dumping.

method.  Fix a number of places where shared libraries were linked without
mentioning all the libraries they depend on; the Darwin and AIX ports
are known to require this, and it doesn't seem to hurt any other supported
platforms.  (Hence, remove code in pl/tcl makefile that tried to avoid
mentioning other libs if not needed.)

accounts.bid values of zero.

Jan

pass COPY's EOL tests.

on pgsql-hackers.

A cast is included in the dump output if any of the objects does
not belong to a system namespace and all of the non-system namespace
objects belong to dumped namespaces. System namespace is defined
as nspname begins with "pg_".

Jan

and improve tests.

every string, especially if some of the output should be fixed-format
machine-readable.  This needs to be more carefully sorted out. Also, make
the help message generated by --help-config -h be more similar in style to
the others.

are not longer than 8 characters.  But sometimes they are, and that made
the display quite ugly.  So just format them vertically so that everyone
can read them.