< * Consider use of open/fcntl(O_DIRECT) to minimize OS caching,
< especially for WAL writes
> * -Consider use of open/fcntl(O_DIRECT) to minimize OS caching,
> for WAL writes
doesn't automatically inherit the privileges of roles it is a member of;
for such a role, membership in another role can be exploited only by doing
explicit SET ROLE. The default inherit setting is TRUE, so by default
the behavior doesn't change, but creating a user with NOINHERIT gives closer
adherence to our current reading of SQL99. Documentation still lacking,
and I think the information schema needs another look.
existing ones for object privileges. Update the information_schema for
roles --- pg_has_role() makes this a whole lot easier, removing the need
for most of the explicit joins with pg_user. The views should be a tad
faster now, too. Stephen Frost and Tom Lane.
test=> select ('2005-07-20 00:00:00'::timestamp without time zone) at
time zone 'Europe/Paris';
timezone
------------------------
2005-07-19 22:00:00-04
Udpate documentation.
24 hours. This is very helpful for daylight savings time:
select '2005-05-03 00:00:00 EST'::timestamp with time zone + '24 hours';
?column?
----------------------
2005-05-04 01:00:00-04
select '2005-05-03 00:00:00 EST'::timestamp with time zone + '1 day';
?column?
----------------------
2005-05-04 01:00:00-04
Michael Glaesemann
for circle(polygon), which was missing; remove bogus entry for
point(lseg, lseg), which does not exist, and the documentation seemed to
describe lseg_interpt, which we already document as an operator not a
function. Also remove entry for box_intersect, which likewise is
preferentially used via the operator #.
optional arguments as text input functions, ie, typioparam OID and
atttypmod. Make all the datatypes that use typmod enforce it the same
way in typreceive as they do in typinput. This fixes a problem with
failure to enforce length restrictions during COPY FROM BINARY.
The Problem: Occassionally a DBA needs to dump a database to a new
encoding. In instances where the current encoding, (or lack of an
encoding, like SQL_ASCII) is poorly supported on the target database
server, it can be useful to dump into a particular encoding. But,
currently the only way to set the encoding of a pg_dump file is to
change client_encoding in postgresql.conf and restart postmaster.
This is more than a little awkward for production systems.
Magnus Hagander
< computations should adjust based on the time zone rules, e.g.
< adding 24 hours to a timestamp would yield a different result from
< adding one day.
<
> computations should adjust based on the time zone rules.
The specification of this function is as follows.
regexp_replace(source text, pattern text, replacement text, [flags
text])
returns text
Replace string that matches to regular expression in source text to
replacement text.
- pattern is regular expression pattern.
- replacement is replace string that can use '\1'-'\9', and '\&'.
'\1'-'\9': back reference to the n'th subexpression.
'\&' : entire matched string.
- flags can use the following values:
g: global (replace all)
i: ignore case
When the flags is not specified, case sensitive, replace the first
instance only.
Atsushi Ogawa
have adequate mechanisms for tracking the contents of databases and
tablespaces). This solves the longstanding problem that you can drop a
user who still owns objects and/or has access permissions.
Alvaro Herrera, with some kibitzing from Tom Lane.
< writer.
> writer. It might cause problems for applying WAL on recovery
> into a partially-written page, but later the full page will be
> replaced from WAL.
>
> o -Add ability to turn off full page writes
> o When off, write CRC to WAL and check file system blocks
> on recovery
> o Write full pages during file system write and not when
> the page is modified in the buffer cache
>
> This allows most full page writes to happen in the background
> writer.
problems:
---------------------------------------------------------------------------
Support cross compilation by compiling "zic" with a native compiler.
This relies on the output of zic being platform independent, but that is
currently the case.
< Currently, to protect against partial disk page writes, we write the
> Currently, to protect against partial disk page writes, we write
877c877
< * Turn off after-change writes if fsync is disabled
> * Turn off full page writes if fsync is disabled
end of the block:
<<label>>
begin
...
end label;
Similarly for loops. This is per PL/SQL. Update the documentation and
add regression tests. Patch from Pavel Stehule, code review by Neil
Conway.
< o Replace crude DELETE FROM method of pg_dumpall for cleaning of
< roles with separate DROP commands
> o Replace crude DELETE FROM method of pg_dumpall --clean for
> cleaning of roles with separate DROP commands
< * Allow limits on per-db/user connections
> * Allow limits on per-db/role connections
< * Prevent default re-use of sysids for dropped users and roles
<
< Currently, if a user is removed while he still owns objects, a new
< user given might be given their user id and inherit the
< previous users objects.
<
450c444
< * Add COMMENT ON for all cluster global objects (users, roles, databases
> * Add COMMENT ON for all cluster global objects (roles, databases
609c603
< users and roles with separate DROP commands
> roles with separate DROP commands
Bruce Momjian