though.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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in this transaction and so if it exists the table on
disk must be the correct representation.
The broken index is just one symptom. The heap also shouldn't be
truncated at all. If you insert a row before commit then after replay
the tuple should be there still.
Have a nice day,
--
Martijn van
On Fri, Jul 03, 2015 at 07:21:21PM +0200, Andres Freund wrote:
On 2015-07-03 19:14:26 +0200, Martijn van Oosterhout wrote:
Am I missing something. ISTM that if the truncate record was simply not
logged at all everything would work fine. The whole point is that the
table was created
test
Data dir is in /tmp/pgtest
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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-- Arthur Schopenhauer
postgresql-test.tgz
On Fri, Jul 03, 2015 at 12:21:02AM +0200, Andres Freund wrote:
Hi,
On 2015-07-03 00:05:24 +0200, Martijn van Oosterhout wrote:
=== Start with an empty database
My guess is you have wal_level = minimal?
Default config, was just initdb'd. So yes, the default wal_level =
minimal
---
PostgreSQL 9.4.3 on x86_64-unknown-linux-gnu, compiled by gcc (Debian
4.9.2-10) 4.9.2, 64-bit
(1 row)
Hope this helps.
--
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He who writes
sounds it
sounds like quite a planner overhaul.
Hope this helps,
--
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own thoughts.
-- Arthur Schopenhauer
reducing the counts. Or if the load is light fall
back to just subtracting one. Then you don't need a cap at all.
(Apologies if this has been suggested before, Google didn't find
anything for me).
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes
the same ones in the
parallel-mode stuff. But they are fairly general terms, so it might
be nice to have something more specific that applies just to this
particular usage.
The words that sprung to mind for me were: packed/unpacked.
Have a nice day,
--
Martijn van Oosterhout klep
On Sun, Jan 25, 2015 at 07:11:12PM -0500, Tom Lane wrote:
Martijn van Oosterhout klep...@svana.org writes:
On Sun, Jan 25, 2015 at 02:02:47PM -0500, Tom Lane wrote:
It's a bit of a long shot, but perhaps if you put something like:
asm volatile(:::memory)
at the beginning of the catch
of the catch-block it might convince the compiler to
forget any assumptions about what is in the local variables...
Hope this helps,
--
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He who writes carelessly confesses thereby at the very outset that he does
not attach
project claims to be able to bisect
even in the case of intermittent failure.
https://github.com/Ealdwulf/bbchop/
It claims to be slow, but I don't think that's the limiting factor here...
Have a nice day,
--
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He who writes
place, but it might not for various reasons.
Have a nice day,
--
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He who writes carelessly confesses thereby at the very outset that he does
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-- Arthur Schopenhauer
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On Wed, Oct 22, 2014 at 09:36:59PM +0200, Dag-Erling Smørgrav wrote:
Martijn van Oosterhout klep...@svana.org writes:
Dag-Erling Smørgrav d...@des.no writes:
If I understand correctly, imaps has been shown to be vulnerable as
well, so I wouldn't be so sure.
Reference?
Sorry
and be done?
Have a nice day,
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a problem.
Only if we're thinking of distributing it. If the user gets ICU from
their distribution then there is no need to list the licence (just like
we don't need to mention the licence of glibc). We only need link
against it, not distribute it.
Have a nice day,
--
Martijn van Oosterhout klep
but was changed to work like this.
IIRC the reason was that anyone can create functions in the temp
tablespace and thus hijack other functions that more priviledged
functions might call.
Or something like that. I think it was even a CVE.
Have a nice dat,
--
Martijn van Oosterhout klep
glibc
doesn't require configuration.
Mvg,
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sizes for strxfrm are more
compact [1] which is relevent for the recent optimisation patch.
Lets solve this problem for once and for all.
[1] http://site.icu-project.org/charts/collation-icu4c48-glibc
--
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He who writes
and start playing with it.
http://people.freebsd.org/~girgen/postgresql-icu/README.html
http://people.freebsd.org/~girgen/postgresql-icu/
Note I said optional. It is a large library for sure, but for some
installations I think the benefits are sufficient.
Mvg,
--
Martijn van Oosterhout klep
, this has been a pain in the ass for a long long time.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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-- Arthur Schopenhauer
On Tue, Sep 02, 2014 at 09:44:17AM -0400, Bruce Momjian wrote:
On Sun, Aug 31, 2014 at 10:45:29PM +0200, Martijn van Oosterhout wrote:
There is one situation where you need to be more flexible, and that is
if you ever want to support online repartitioning. To do that you have
to distinguish
to say yes our
partitioning scheme sucks, but we would have to take the database down
for a week to fix it is no fun.
Unless logical replication provides a way out maybe??
Have a nice day,
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He who writes carelessly
is hard enough as it is, but trying to guarentee
some kind of atomicity makes it nigh on impossible. Indeed, after
reading what you wrote I think it may well be impossible to make it
atomic *and* make it perform in the general case.
So, +1 UPSERT.
Have a nice day,
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Martijn van Oosterhout klep
recommend the Atomic Weapons talk on the C11 memory model
to help understand how they work. As a bonus it includes correct
implementations for the major architectures.
Have a nice day,
--
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He who writes carelessly confesses
,
--
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own thoughts.
-- Arthur Schopenhauer
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On Tue, Jul 01, 2014 at 02:36:55PM -0500, Merlin Moncure wrote:
On Tue, Jul 1, 2014 at 2:16 PM, Martijn van Oosterhout
klep...@svana.org wrote:
On Sun, Jun 29, 2014 at 10:05:50PM +0800, gotoschool6g wrote:
The simplified scene:
select slowfunction(s) from a order by b limit 1;
is slow
On Wed, Jul 02, 2014 at 04:17:13PM -0400, Tom Lane wrote:
David G Johnston david.g.johns...@gmail.com writes:
Martijn van Oosterhout wrote
I'm probably dense, but I'm not sure I understand. Or it is that the
slowfunction() is called prior to the sort? That seems insane.
The basic
'.
I think to help here I think we need the EXPLAIN ANALYSE output for
both queries.
Have a nice day,
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.
Default BSD does not return EINTR normally, but supports sigaction().
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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-- Arthur
to be safe on all cases. Surely, for strictly-enlarging sets
it would, but while min/max and bloom filters both fit the bill, it's
not clear that one can assume this for all structures.
I think GiST has already solved this problem.
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org
, bar.b, ...)
Or am I missing something?
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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this not null if the operator/function was
strict, but then I realised that strict only means null if input is
null not output is only null if inputs are null. Pity.
Nice work.
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He who writes carelessly confesses thereby at the very
On Mon, Jun 09, 2014 at 03:35:23PM +0200, Magnus Hagander wrote:
On Mon, Jun 9, 2014 at 3:19 PM, Andreas Karlsson andr...@proxel.se wrote:
On 06/09/2014 01:45 PM, Heikki Linnakangas wrote:
There was a patch set for this from Martijn van Oosterhout which was quite
complete.
http
.
And the crappiest license. I think it's silly for PostgreSQL dictate
what SSL library users must use, when there are so many possibilities.
We also support libedit for, in my opinion, worse reasons.
Have a nice day,
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He
only if nothing in the view actually references it in a function,
operator, group by, order by, etc? That is, it only appears in the
SELECT list unadorned? Or is that too limiting?
Have a nice day,
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He who writes carelessly
far seem to
be pretty unhelpful.
Here is a patch.
Does this need a comment indicating why it's needed and when it can be
removed?
Have a nice day,
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He who writes carelessly confesses thereby at the very outset
a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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-- Arthur Schopenhauer
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Seems possibly even more robust than most people will code, but it's
had a lot of real world testing.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance
Thing.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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a handle
on the problem.
Note that a first cut of the problem might simply be something like
likely()/unlikely() as in gcc.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
.
This is not an important feature for me though: the config file is
generated by puppet with a bunch of loops and an include directory
would not really reduce the amount of work.
Have a nice day,
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He who writes carelessly confesses thereby
day,
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own thoughts.
-- Arthur Schopenhauer
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multiplexing of rows in one stream. This would
be extremely powerful together with MERGE.
Have a nice way,
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own
%p %s %c
But yes, it can be configured to icnclude the PID in the filename.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own thoughts
with PGRES_EMPTY_QUERY?
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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work! The plans look good and the calculated costs seem sane also.
I suppose the problem with the joins is generating the pathkeys?
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
for large n.
Minor comments:
I find cmpTuple a bad name. That's what it's doing but perhaps
cmpSkipColumns would be clearer.
I think it's worthwhile adding a seperate path for the skipCols = 0
case, to avoid extra copies.
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http
?
Wouldn't this just be:
SELECT make_timestamp(...) at time zone 'foo';
(assuming make_timestamp actually returns a timestamp and not a
timestamptz).
or do you mean something else?
Have a nice day,
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He who writes carelessly
% of the tuples. That way you get many more
tuples for the same amount of disk I/O seeks..
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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sigsetjmp == setjmp:
http://www.gnu.org/software/libc/manual/html_node/Non_002dLocal-Exits-and-Signals.html
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance
you expect? For example, it would allow
'foo*bar' to match 'foo.bar' which your code doesn't.
Have a nice day,
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Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own
.
Have a nice day,
--
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own thoughts.
-- Arthur Schopenhauer
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,
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He who writes carelessly confesses thereby at the very outset that he does
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-- Arthur Schopenhauer
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.
If I had to guess a distribution for query runtimes I'd go for Poisson,
which would mean you'd expect the mean to equal the variance. Don't
have enough experience with such measurements to say whether that is
reasonable.
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http
than this whole NCHAR thing, why not just add a type
sjistext, and a few type casts and call it a day...
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
not attach much
obscure, yet clear.
Have a nice day,
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of that will be bit complex.
Letting the user configure the location seems like common curtesy. Note
this line isn't in itself a GUC, so you can't configure it via ALTER
SYSTEM.
Have a nice day,
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He who writes carelessly confesses
it means. And the user can control where the
settings go.
Syntax is a bit fugly though.
Have a nice day,
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Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own
no idea.
The main issue with strxfrm() is its lame API. If it supported
returning prefixes you'd be set, but as it is you need 10MB of memory
just to transform a 10MB string, even if only the first few characers
would be enough to sort...
Mvg,
--
Martijn van Oosterhout klep...@svana.org http
you put code in and verify it does what you
want. With this one you can put test programs in and it can tell you
all possibly results due to memory reordering.
http://svr-pes20-cppmem.cl.cam.ac.uk/cppmem/help.html
Have a nice day,
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Martijn van Oosterhout klep...@svana.org http://svana.org
to handle filenames coming from disk in
an unknown encoding:
http://docs.python.org/3/howto/unicode.html#files-in-an-unknown-encoding
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he
a large file describing all its states that you should
be able to work out from that where the exact problem lies.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
not attach much
be
improved.
Have a nice day,
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-text search. If you give some idea of what you'd like to index
then we can give an idea of what the functions should do.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
not attach
two interpreters in a
single backend.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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If you read through it I think you will understand the difficulties.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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rights, otherwise it can't warn you about
idle in transaction problems.)
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own thoughts
a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
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writer triggers at 1% memory.
I'm not saying that's the problem here, but it is an example of a
situation where the write queue can become very large very quickly.
Have a nice day,
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He who writes carelessly confesses
that A can't see
the tuple.
Or is the idea to create multixacts for each combination of xmin/xmax
encountered? And the assumption is that there aren't that many? That
could be measured.
Have a nice day,
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Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes
. For ordinary
relations, these files are named after the table or index's filenode
number, which can be found in pg_class.relfilenode.
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
the filenames?
Have a nice day,
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vanish. The question is: how often does this happen?
Hope this helps,
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not attach much importance to his own thoughts.
-- Arthur Schopenhauer
.
It appears SCSI has standardised on a CRC-16 checksum with polynomial
0x18bb7 .
http://www.t10.org/ftp/t10/document.03/03-290r0.pdf
https://oss.oracle.com/~mkp/docs/dix-draft.pdf
Not directly relavent to PostgreSQL now, but possibly in the future.
Have a nice day,
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() completely.
Have a nice day,
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are all not backups.
Taking a tarball of the entire repository and storing it on a different
machine would solve just about any problem you can think of in this
area.
Have a nice day,
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He who writes carelessly confesses
to it for storing the actual
reviews and such.
It's a nice tool and integrates reasonably well with other thing. We
have a bot connected to it which sends messages on IRC in response to
various state changes. I've never seen an instance respond to email
though.
Have a nice day,
--
Martijn van Oosterhout
you where to look and help find the non-obvious corruption (so you can
possibly fix it by hand).
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his
day,
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He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own thoughts.
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any number of passive attacks.
Have a nice day,
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so I'm not affected,
but I don't like the idea of known bugs being unfixed.
It's a pity we can't have a system that can somehow independantly
checks the results of the planner
Have a nice day,
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He who writes carelessly
day,
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He who writes carelessly confesses thereby at the very outset that he does
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() to register a handler that puts the socket into an
invalid state in either the parent or the child.
http://pubs.opengroup.org/onlinepubs/009695399/functions/pthread_atfork.html
Ofcourse, the backward compatabilty issues prevent us doing that, but
it's *possible*.
Have a nice day,
--
Martijn van
mentioned elsewhere, a system with more than 10,000 different
queries sounds rare to me (once you exclude query parameters ofcourse).
Have a nice day,
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He who writes carelessly confesses thereby at the very outset that he
(yourtype) - json which is used.
Hardcoding IDs in extensions just doesn't seem right somehow...
(Hmm, I see someone else in the thread pointed this out too).
Have a nice day,
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He who writes carelessly confesses thereby
,
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He who writes carelessly confesses thereby at the very outset that he does
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/msg00232.html
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Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own thoughts.
-- Arthur Schopenhauer
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, and if the error had been caused by the network
down, we'll just get stuck in a poll() waiting for a timeout.
There is PQreset(), which also exists in a non-blocking variant.
Hope this helps,
--
Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly
/Articles/375096/ . The same page suggests shared
mappings should work fine. However, this page refers to the
non-transparent feature.
If you think about it, it must work since huge pages are inherited
through fork().
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http
useful for google.
We do this at my work, it's a very low barrier method of linking
different systems.
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly confesses thereby at the very outset that he does
not attach much importance
everything can still work after a kill -9).
So it's more a replacement for the SysV semaphores than anything else.
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly confesses thereby at the very outset that he does
not attach much
in any case.
It might be worthwhile testing futexes on Linux though, they are
specifically supported on any kind of shared memory (shm/mmap/fork/etc)
and quite well tested.
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly
at all with -q. That would make errors
significantly more visible.
Not sure how to go about that though.
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly confesses thereby at the very outset that he does
not attach much
the list from the library.
Have a nice ay,
--
Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own thoughts.
-- Arthur Schopenhauer
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testing: does this patch cherry-pick cleanly or
is there a conflict.
No merge commits, just using git purely as patch storage.
(Note to make this work it has a git server emulation which may or may
not be easy to do, but it's just a thought about workflow.)
Have a nice day,
--
Martijn van Oosterhout
the EINTR case.
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly confesses thereby at the very outset that he does
not attach much importance to his own thoughts.
-- Arthur Schopenhauer
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use to
return partial sort keys (ucol_nextSortKeyPart) but it produces
uncompressed sortkeys, which it seems is what Mac OSX is doing, which
seems useless for our purposes. Either this is a hard problem or we're
nowhere near a target use case.
Have a nice day,
--
Martijn van Oosterhout klep
, they also handle DDL mapping (where most of the
variation is) and datatype translations, which seems a lot further than
we need here.
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly confesses thereby at the very outset that he does
a state machine to process
your strings. Not ideal, but predicatable.
The question is, what are users expecting of the PostgreSQL regex
implementation?
Have a nice day,
--
Martijn van Oosterhout klep...@svana.org http://svana.org/kleptog/
He who writes carelessly confesses thereby at the very
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