Open documentation items for 7.0

Thanks to Tom Lane, we now have a list of documentation updates needed
for 7.0.

Can people submit patches or comment on these so we can get this list
emptied?

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Add SET FSYNC and SHOW PG_OPTIONS commands(Massimo)

Are any of these documented. We now have a sample file. Is that
enough?

Add CmdTuples() to libpq++(Vince)
New CREATE CONSTRAINT TRIGGER and SET CONSTRAINTS commands(Jan)

First real FOREIGN KEY constraint trigger functionality (Jan)
Add FOREIGN KEY ... MATCH FULL ... ON DELETE CASCADE (Jan)
Add FOREIGN KEY ... MATCH referential actions (Don Baccus)

Nees more work.

Allow WHERE restriction on ctid (physical heap location) (Hiroshi)

Not documented; not quite sure where to put it, either.

Add ecpg EXEC SQL IFDEF, EXEC SQL IFNDEF, EXEC SQL ELSE, EXEC SQL ELIF
and EXEC SQL ENDIF directives

ecpg.sgml?

Add pg_ctl script to control backend startup (Tatsuo)
Add postmaster.opts.default file to store startup flags (Tatsuo)
and postmaster.pid file

In progress as part of pg_ctl.

Updated user interfaces on initdb, initlocation, pg_dump, ipcclean (Peter E)

initlocation and pg_dump man pages still need to be updated; not sure
about ipcclean.

Add ALTER TABLE ... ADD FOREIGN KEY (Stephan Szabo)

Implement column aliases (aka correlation names) and more join syntax
(Thomas)
Allow queries like SELECT a FROM t1 tx (a) (Thomas)
Allow queries like SELECT * FROM t1 NATURAL JOIN t2 (Thomas)

Not documented. Not sure we want to seeing as they are mostly disabled.

New libpq functions PQsetClientEncoding(), PQclientEncoding() (Tatsuo)

Documented, but only in README.mb. Is that OK?

New lztext data type for compressed text fields

Not documented. I think we want to document it, no?

New C-routines to implement a BIT and BIT VARYING type in /contrib
(Adriaan Joubert)

Not documented. New for 7.0.

Make ISO date style (2000-02-16 09:33) the default (Thomas)

Updated set man page. Not sure where else this goes.

Add NATIONAL CHAR [ VARYING ]
Improved TRANSLATE() function

Only mentioned in Table 5-4, which hardly gives room to explain...

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