On 2/13/15 11:44 AM, Heikki Linnakangas wrote:
On 02/13/2015 07:34 PM, Jim Nasby wrote:
On 2/13/15 7:26 AM, Heikki Linnakangas wrote:
In the redesign checkpoint_segments patch, Robert suggested keeping
the settings' base unit as number of segments, but allow conversions
from MB, GB etc. I
oddball partitions for +/-
infinity, I expect that fixed sized partitions would actually cover
80-90% of cases.
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about it, I don't think having a more distinctive name
(like TOAST) is necessary for this feature. TOAST is something that's
rather visible to end users, whereas packing would only matter to
someone creating a new varlena type.
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; presumably that's wrong. Perhaps:
/*
* reuse XLOG_HEAP_LAST_MULTI_INSERT bit for
* XLOG_HEAP_KILLED_SPECULATIVE_TUPLE. This is safe because we never do
* multi-inserts for INSERT ON CONFLICT.
*/
I'll review the remaining patches later.
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on this would be some way to lock down the
tables that a long-running transaction could access. That would allow
vacuum to ignore any snapshots that transaction had for tables it wasn't
accessing. That's something that would be deterministic.
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and is fast. The SQL
function is significantly slower.
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);
+ ReleaseBuffer(lmbuffer);
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for this sort of feature (aka potentially very popular).
I don't know if Teodor or Oleg are in a position to accept funding, but it is
an interesting idea. Perhaps it would be useful to try this with a different
feature.
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. But yeah, I don't
see that there's much we can do if they're not using SPI.
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on wondering why it's not working.
Perhaps we could have EXPLAIN throw a warning if a plan is likely to get less
than parallel_seqscan_degree number of workers.
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target. Promotion should be
done via the normal promotion methods.
+1. replay resume certainly doesn't make me think promote.
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to it) on my whiteboard...
I think it's appropriate here ;)
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To make
. There was discussion about how this should properly
support MD arrays.
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a solution).
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on accident doesn't help anyone.
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/var/log be better?
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that returns an array of ndims-1 that is the slice where a
value was found?
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and
nothing else. I'd be OK a coherent policy change in this area, but
just removing one or two setting seems like it will be confusing
rather than helpful.
I agree with not being ad-hoc (and I think a documented postgresql.conf
is much better than the other options).
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everything out. If a user wanted things flat they would
have just started with that in the first place.
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To make
multiple levels
of caching to avoid both parse costs as well as plan costs. It's always
impressed me that we didn't have to resort to such shenanigans, but
perhaps there's only so long we can avoid them.
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reconnecting to a promoted node
If we're keeping a list, there's also hot_standby_feedback,
max_standby_archive_delay and max_standby_streaming_delay.
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On 3/9/15 12:28 PM, Alvaro Herrera wrote:
Robert Haas wrote:
On Sat, Mar 7, 2015 at 5:49 PM, Andres Freund and...@2ndquadrant.com wrote:
On 2015-03-05 15:28:12 -0600, Jim Nasby wrote:
I was thinking the simpler route of just repalloc'ing... the memcpy would
suck, but much less so than
/github.com/1dvrr.c
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a fake VacuumStmt.
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is a different story,
because that's not WITH; we're actually using () *instead of* WITH.
So because almost all commands that use WITH doen't even accept (), I
don't think this should either. It certainly shouldn't require them,
because unlike EXPLAIN, there's no need to require them.
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value is not found. It uses a NOT DISTINCT FROM
operator
+ * for comparation to be safe against NULL.
+ */
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On 3/10/15 5:25 PM, Tom Lane wrote:
Jim Nasby jim.na...@bluetreble.com writes:
That said, this pattern with fn_extra is repeated a lot, even just in
the backend (not counting contrib or extensions). It would be nice if
there was generic support for this.
What do you mean by generic support
of an
extra GUC to control it?
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On 3/5/15 2:17 PM, Stephen Frost wrote:
* Jim Nasby (jim.na...@bluetreble.com) wrote:
On 3/4/15 2:56 PM, Stephen Frost wrote:
2) The per-session salt sent to the client is only 32-bits, meaning
that it is possible to reply an observed MD5 hash in ~16k connection
attempts.
Yes, and we have
On 3/4/15 9:10 AM, Robert Haas wrote:
On Wed, Feb 25, 2015 at 5:06 PM, Jim Nasby jim.na...@bluetreble.com wrote:
Could the large allocation[2] for the dead tuple array in lazy_space_alloc
cause problems with linux OOM? [1] and some other things I've read indicate
that a large mmap will count
, lets at least get this wrapped and we can see about improving it.
I like the idea of doing a here-doc or similar in the .pid, though I
think it'd be sufficient to just prefix all the continuation lines with
a tab. An uglier option would be just striping the newlines out.
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, right?
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On 3/7/15 12:48 AM, Noah Misch wrote:
On Sat, Mar 07, 2015 at 12:46:42AM -0500, Tom Lane wrote:
Noah Misch n...@leadboat.com writes:
On Thu, Mar 05, 2015 at 03:28:12PM -0600, Jim Nasby wrote:
I was thinking the simpler route of just repalloc'ing... the memcpy would
suck, but much less so than
On 3/7/15 4:49 PM, Andres Freund wrote:
On 2015-03-05 15:28:12 -0600, Jim Nasby wrote:
I was thinking the simpler route of just repalloc'ing... the memcpy would
suck, but much less so than the extra index pass. 64M gets us 11M tuples,
which probably isn't very common.
That has the chance
? That would
theoretically allow us to drive much more of initdb with plain SQL
(possibly created via pg_dump).
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On 3/7/15 6:02 PM, Stephen Frost wrote:
* Andrew Dunstan (and...@dunslane.net) wrote:
On 03/07/2015 05:46 PM, Andres Freund wrote:
On 2015-03-07 16:43:15 -0600, Jim Nasby wrote:
Semi-related... if we put some special handling in some places for bootstrap
mode, couldn't most catalog objects
On 3/13/15 6:48 AM, Robert Haas wrote:
On Wed, Mar 11, 2015 at 5:36 PM, Jim Nasby jim.na...@bluetreble.com wrote:
The thing is, ()s are actually an odd-duck. Very little supports it, and
while COPY allows it they're not required. EXPLAIN is a different story,
because that's not WITH; we're
On 3/11/15 1:19 AM, Pavel Stehule wrote:
2015-03-11 2:57 GMT+01:00 Robert Haas robertmh...@gmail.com
mailto:robertmh...@gmail.com:
On Tue, Mar 10, 2015 at 5:53 PM, Jim Nasby jim.na...@bluetreble.com
mailto:jim.na...@bluetreble.com wrote:
I don't think we need both array_offset
as a dependency for make check (make
temp-cluster/remove-temp-cluster or similar).
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On 3/5/15 7:58 PM, Jim Nasby wrote:
This got answered on one of the other lists, right?
That was supposed to be off-list. I'll answer my own question: yes.
Sorry for the noise. :(
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On 3/10/15 10:53 AM, Jim Nasby wrote:
On 3/10/15 9:30 AM, Robert Haas wrote:
On Sat, Mar 7, 2015 at 1:06 PM, Petr Jelinek p...@2ndquadrant.com
wrote:
You still duplicate the type cache code, but many other array
functions do
that too so I will not hold that against you. (Maybe somebody should
utils/adt/arrayfuncs.c
4 utils/adt/domains.c
2 utils/adt/enum.c
1 utils/adt/int.c
6 utils/adt/jsonfuncs.c
1 utils/adt/oid.c
4 utils/adt/orderedsetaggs.c
7 utils/adt/rangetypes.c
24 utils/adt/rowtypes.c
8 utils/adt/varlena.c
(utils/fmgr/* doesn't count)
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On 2/22/15 5:19 AM, Pavel Stehule wrote:
2015-02-22 3:00 GMT+01:00 Petr Jelinek p...@2ndquadrant.com
mailto:p...@2ndquadrant.com:
On 28/01/15 08:15, Pavel Stehule wrote:
2015-01-28 0:01 GMT+01:00 Jim Nasby jim.na...@bluetreble.com
mailto:jim.na...@bluetreble.com
On 3/9/15 9:43 PM, Sawada Masahiko wrote:
On Fri, Mar 6, 2015 at 11:07 AM, Jim Nasby jim.na...@bluetreble.com wrote:
On 3/2/15 10:58 AM, Sawada Masahiko wrote:
On Wed, Feb 25, 2015 at 4:58 PM, Jim Nasby jim.na...@bluetreble.com
wrote:
On 2/24/15 8:28 AM, Sawada Masahiko wrote:
According
this
patch's job to solve that problem, but it would be nice.
Since this patch is here and ready to go I would prefer that we commit
it and refactor later. I can tackle that unless Pavel specifically wants to.
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with that they could always coalesce(...,
true).
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. That doesn't seem very
unreasonable to me...
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disclaimer along
the lines of The following 3 settings are dangerous. Use at your own
risk, and read the docs first.? That would also allow us to just remove
the comments about what the settings do; if you don't already know you
certainly shouldn't be touching them! :)
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/nbtree/nbtree.c;hb=refs/heads/REL9_4_STABLE#l813
[2]
http://git.postgresql.org/gitweb/?p=postgresql.git;a=blob;f=src/backend/access/nbtree/nbtxlog.c;hb=refs/heads/REL9_4_STABLE#l482
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. There may well be other settings in
there where it would not be safe.
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for postgres. Can someone
tell me how to do that, where should I include this program so that I
can successfully implement that program in postgres.
Without seeing the program, no.
This also isn't the correct list; discussion like this should go on
pgsql-general@.
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On 3/26/15 5:26 PM, David Fetter wrote:
+* Note: Non-positive years are take to be BCE.
s/take/taken/
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(and presumably a lot faster) than a slew of ALTER
TABLE statements.
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optimizing attcacheoff, at least for a database that
doesn't fit in memory. Even if it does fit in memory I suspect memory
bandwidth is more important than clock cycles.
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).
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.
MemoryContextInit() happens near the top of main(), before we call
InitializeGUCOptions(). So it should be possible to use memory contexts
here. I don't know why guc doesn't use palloc; perhaps for historical
reasons at this point?
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.
4071
/srv/dev/pgdev-master
1425396089
5440
/tmp
localhost
5440001 82345992
If we already have all this extra stuff, why not include an actual error
message then, or at least the first line of an error (or maybe just swap
any newlines with spaces)?
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more like a WIP patch.
FYI, pg_upgrade is going to need pg_dump --binary-upgrade to output the
columns in physical order with some logical ordering information, i.e.
pg_upgrade cannot be passed only logical ordering from pg_dump.
Wouldn't it need attno info too, so all 3 orderings?
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On 3/3/15 11:15 AM, Jan de Visser wrote:
On March 3, 2015 11:09:29 AM Jim Nasby wrote:
On 3/3/15 9:26 AM, Andres Freund wrote:
On 2015-03-03 15:21:24 +, Greg Stark wrote:
Fwiw this concerns me slightly. I'm sure a lot of people are doing
things like kill -HUP `cat .../postmaster.pid
On 2/26/15 4:34 PM, Andres Freund wrote:
On 2015-02-26 16:16:54 -0600, Jim Nasby wrote:
On 2/26/15 4:01 PM, Alvaro Herrera wrote:
The reason for doing it this way is that changing the underlying
architecture is really hard, without having to bear an endless hackers
bike shed discussion about
the result of array_out is. That way you could
always do array_to_string(..., ', ') and get valid pg_hba output.
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To make
between comments about the function of a
GUC and stating the units it's specified in. It's more than annoying to
have to go and look that up where it's not stated.
Look up the units?
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On 3/3/15 5:13 PM, Tom Lane wrote:
Jim Nasby jim.na...@bluetreble.com writes:
On 3/3/15 11:48 AM, Andres Freund wrote:
It'll be confusing to have different interfaces in one/multiple error cases.
If we simply don't want the code complexity then fine, but I just don't
buy this argument. How
still have to grant backup to every role created
anyway, right?
Or you could create a role that has the backup attribute and then grant
that to users. Then they'd have to intentionally SET ROLE my_backup_role
to elevate their privilege. That seems like a safer way to do things...
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On 3/3/15 3:34 PM, David Fetter wrote:
On Tue, Mar 03, 2015 at 05:49:06PM -0300, Alvaro Herrera wrote:
Jim Nasby wrote:
FWIW, what I would find most useful at this point is a way to get
the equivalent of an AFTER STATEMENT trigger that provided all
changed rows in a MV as the result
On 3/3/15 12:57 PM, Greg Stark wrote:
On Tue, Mar 3, 2015 at 6:05 PM, Jim Nasby jim.na...@bluetreble.com wrote:
What about a separate column that's just the text from pg_hba? Or is that what
you're opposed to?
I'm not sure what you mean by that. There's a rawline field we could
put
On 3/3/15 11:48 AM, Andres Freund wrote:
On 2015-03-03 11:43:46 -0600, Jim Nasby wrote:
It's certainly better than now, but why put DBAs through an extra step for
no reason?
Because it makes it more complicated than it already is? It's nontrivial
to capture the output, escape it to somehow fit
On 3/3/15 11:26 AM, Bruce Momjian wrote:
On Tue, Mar 3, 2015 at 11:24:38AM -0600, Jim Nasby wrote:
On 3/3/15 11:23 AM, Bruce Momjian wrote:
On Thu, Feb 26, 2015 at 01:55:44PM -0800, Josh Berkus wrote:
On 02/26/2015 01:54 PM, Alvaro Herrera wrote:
This patch decouples these three things so
On 3/3/15 11:33 AM, Andres Freund wrote:
On 2015-03-03 11:09:29 -0600, Jim Nasby wrote:
On 3/3/15 9:26 AM, Andres Freund wrote:
On 2015-03-03 15:21:24 +, Greg Stark wrote:
Fwiw this concerns me slightly. I'm sure a lot of people are doing
things like kill -HUP `cat .../postmaster.pid
, which in turn uses mmap, which
won't actually allocate the memory until we access it.
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To make changes to your
more field in LVRelStats, a
call to GetRecordedFreeSpace for all-visible pages, and some logic to
deal with pages skipped because we couldn't get the vacuum lock.
Should we just add this to vacuum instead?
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On 2/22/15 8:32 PM, Tomas Vondra wrote:
On 23.2.2015 03:20, Jim Nasby wrote:
On 2/22/15 5:41 PM, Tomas Vondra wrote:
Otherwise, the code looks OK to me. Now, there are a few features I'd
like to have for production use (to minimize the impact):
1) no index support:-(
I'd like to see
On 2/26/15 3:22 AM, Andres Freund wrote:
On 2015-02-26 02:20:21 -0600, Jim Nasby wrote:
The reason I'd like to do this with partitioning vs plain inheritance is
presumably as we build out partitioning we'll get very useful things like
the ability to have FKs to properly partitioned tables
that is because the patch is not fully baked yet.
Ok, good to know. That's why I was asking about ALTER TABLE ADD COLUMN
on a partition. If we release something without that being restricted
it'll probably cause trouble later on.
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the hypothetical index work to 9.4
though.
Also, just to let you know, this is really a topic for pgsql-general,
not pgsql-hackers. It's also best to reply to list emails in-line, or at
the bottom, not at the top.
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on a page to reduce space wasted on alignment, as well as taking
nullability and varlena into account.
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To make changes
conflict resolution and UPSERTs
on two nodes overlap, wouldn't you want to know that the second UPSERT
was an UPSERT and not a plain INSERT?
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On 2/26/15 1:34 AM, James Sewell wrote:
I have the following table:
I'm moving this discussion to -general.
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of pg_regress out on it's own to make it easy
to get that functionality while using a different test framework (like
pgTap).
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children?
Does ALTER TABLE parent_monthly_x_201401 ADD COLUMN foo still
operate the same as today? I'd like to see us continue to support that,
but perhaps it would be wise to not paint ourselves into that corner
just yet.
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internally.
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On 2/25/15 2:56 PM, Tomas Vondra wrote:
On 24.2.2015 19:08, Jim Nasby wrote:
On 2/22/15 8:32 PM, Tomas Vondra wrote:
On 23.2.2015 03:20, Jim Nasby wrote:
On 2/22/15 5:41 PM, Tomas Vondra wrote:
Otherwise, the code looks OK to me. Now, there are a few features I'd
like to have for production
to have in-house counsel (EnterpriseDB?)
could get a quick legal opinion on the license before we start pursuing
other things? Perhaps this is just a non-issue...
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On 2/25/15 7:57 PM, Amit Langote wrote:
On 26-02-2015 AM 10:31, Jim Nasby wrote:
On 2/25/15 7:24 PM, Amit Langote wrote:
Does ALTER TABLE parent_monthly_x_201401 ADD COLUMN foo still
operate the same as today? I'd like to see us continue to support that,
but perhaps it would be wise
WITH GRANT OPTION;
CREATE VIEW v1 AS qry WITH CASCADED CHECK OPTION;
ALTER DATABASE db1 WITH CONNECTION LIMIT 50;
DECLARE c1 INSENSITIVE SCROLL CURSOR WITH HOLD;
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such wonderful SQL don't know about IS
DISTINCT FROM nor would they try doing things like bool_a bool_b =
bool_c. So there may actually be very little code to fix, but I think we
at least need a way for users to verify that.
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Data in Trouble
directly if you really
wanted to change LCO. Worst case you could create a C function to do it.
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To make changes
problem can be solved by make. I know I've had to
futz with the output of SELECT version() in the past, and I think I've
had to do the same with pg_config --version.
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during query analysis, such as
casting a constant or utility commands. PortalRun is what you want when
there will be some kind of output, including DML.
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On 3/25/15 8:35 PM, Jeff Janes wrote:
On Wed, Mar 25, 2015 at 12:45 PM, Jim Nasby jim.na...@bluetreble.com
mailto:jim.na...@bluetreble.com wrote:
I see 3 settings that allow people to accidentally shoot themselves
in the foot; fsync, wal_sync_method and full_page_writes.
How about
On 3/2/15 10:58 AM, Sawada Masahiko wrote:
On Wed, Feb 25, 2015 at 4:58 PM, Jim Nasby jim.na...@bluetreble.com wrote:
On 2/24/15 8:28 AM, Sawada Masahiko wrote:
According to the above discussion, VACUUM and REINDEX should have
trailing options. Tom seems (to me) suggesting that SQL-style
that initdb has
tweaked in it.
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to modify pg_hba.conf via SQL.
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something like
client_min_messages for a single command, so I'd prefer to
SAVEPOINT old_setting;
SET LOCAL blah;
command;
RELEASE old_setting;
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On 1/28/15 4:25 PM, Tomas Vondra wrote:
+ * It's possible to choose whether to create a separate memory context for the
+ * array builde state, or whether to allocate it directly within rcontext
Typo.
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On 1/28/15 7:45 PM, Stephen Frost wrote:
Jim,
* Jim Nasby (jim.na...@bluetreble.com) wrote:
On 12/23/14 12:52 PM, Stephen Frost wrote:
Autovacuum can certainly run vacuum/analyze on a few tables every 12
hours, so I'm not really following where you see autovacuum being unable
to cope. I
On 1/29/15 7:02 PM, David Steele wrote:
On 1/29/15 7:55 PM, Jim Nasby wrote:
On 1/29/15 6:25 PM, David Steele wrote:
Safe backups can be done without LSNs provided you are willing to trust
your timestamps.
Which AFAICT simply isn't safe to do at all... except maybe with the
manifest stuff
break
them in subtle ways.
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of work to make this not be
true anymore.
:)
I'd love to see all this stuff Just Work (tm), but I don't think we're there
yet, and I'm not really sure how we can get there.
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