I discovered that one of the memory sticks in the machine was damaged.
Running memtest86 on the machine generated many RAM errors.
This was causing the strange bi-polar errors in postgresql.
The hardware technician explained that he sees this often and that there is no
one cause for such
It seems that the hardware may in fact be the issue.
I ran the exact same process during the night on a much slower machine (4 core
Xeon E5-1620 v4 32G Ram) and it worked fine. It did not crash and completed all
the updates on 113 million records successfully.
I will be bringing the i9 in for
machine is a machine from only 4 years
ago which should have no issues.
On Sunday, April 14th, 2024 at 8:50 PM, Adrian Klaver
wrote:
>
>
> On 4/14/24 14:50, jack wrote:
>
> Reply to list also
> Ccing list
>
> > Hello,
> > I am not sure what "locale&
The CSV files are being produced by another system, a WIndows app on a Windows
machine. I then copy them to a USB key and copy them onto the ubuntu machine.
The data is then imported via the COPY command.
COPY master (field01,field02..fieldX) FROM '/data/file.text' DELIMITER E'\t'
The fields
To show you how bi-polar this is really becoming, I tried a work-around...
I took the table called us113 with 113 million records and tried to break it
down into 10 smaller tables each having about 10 million records, using the
following code:
\set ECHO all
\set ON_ERROR_STOP on
-- Create 10
Here is the table structure:
The fields being updated are the ones that are NOT named field##.
Except for "3fc" which I left as is to show that it is named differently in the
unlikely chance that this would be causing problems.
CREATE TABLE main (
field01 character(10) COLLATE
Here is an excerpt of /var/log/postgresql/postgresql-16-main.log
2024-04-14 12:17:42.321 EDT [7124] LOG: checkpoint starting: wal
2024-04-14 12:17:43.153 EDT [1227] LOG: server process (PID 7289) was
terminated by signal 11: Segmentation fault
2024-04-14 12:17:43.153 EDT [1227] DETAIL: Failed
The full error reads:
server closed the connection expectantly
This probably means the server terminated abnormally
before or while processing the request.
error: connection to server was lost
PostgreSQL 16.2
I also believe it is a resource issue which can be rectified with a setting,
but which
Hello,
I am trying to load about 1.4 billion records into a postgresql table.
The data is in about 100 individual CSV files which I load individually into
the table using the COPY command.
After the data is loaded I perform updates to the data, and this is when I get
errors. Some updates work,
this
one? please give me a code example,thanks.
jack...@gmail.com
*committed* transactions between xmin and xmax.
*
* note: all ids in xip[] satisfy xmin <= xip[i] < xmax
*/
TransactionId *xip;
I can't understand the historic MVCC snapshots? can you give me a scenario
to describe this?
jack...@gmail.com
is that these three bit can have only one to be set 1 at
most.
3. t_cid is a combo CID? what's a CID? give me an example please.
--
jack...@gmail.com
Hi, I'm trying to construct a new tuple type, that's not heaptuple,
When I get a tupleTableSlot, I will get data info from it and the I
will constuct a new tuple, and now I need to put it into a physical
page, how should I do?
--
jack...@gmail.com
I need to create a new operator like '<->' and its syntax is that text1 <->
text2,
for the usage like this: 'a' <-> 'b' = 'a1b1', so how could I realize this one?
Can you give me some exmaples.
--
jack...@gmail.com
>On 2023-Jan-30, jack...@gmail.com wrote:
>
>> For example, I use "insert into t values(1)"; and I 'll get a tupleTableSlot,
>>
>> And Now I want to get the real data , that's 1, and then use elog() func
>> to print it. Could you give m
to change?
--
jack...@gmail.com
jack...@gmail.com
--
I can't understand the hash_bytes() func in src/backend/access/hash/hashfunc.c,
it's published by a paper or others?
Can you give me some materials to study it in depth?
jacktby(at)gmail(dot)com
--
Hello, I'm trying to modify pg codes for my personal project. And after I
finish modify planner, I get this.
postgres=# create table tt(a int);
CREATE TABLE
postgres=# \d tt
ERROR: btree index keys must be ordered by attribute
here are the patches of my
jack...@gmail.com
--
Hello, I'm trying to modify pg codes for my personal project. And after I
finish modify planner, I get this.
postgres=# create table tt(a int);
CREATE TABLE
postgres=# \d tt
ERROR: btree index keys must be ordered by attribute
the patches are below
0001
jack...@gmail.com
--
here is the codes for pg16.
static relopt_string stringRelOpts[] =
{
/* list terminator */
{{NULL}}
};
And I add my string type arguments here, it can't work well.
When I debug, it comes to func allocateReloptStruct
thanks for your advice, I realize my problems, can you give me some materials
like some study routine for pg-internal?
--
jack...@gmail.com
>"jack...@gmail.com" writes:
>> When I add
>> "{ oid => '6015', oid_symbol => 'SPB_
"jack...@gmail.com" writes:
> When I add
> "{ oid => '6015', oid_symbol => 'SPB_AM_OID',
> descr => 'SPB index access method',
> amname => 'spb', amhandler => 'spbhandler', amtype => 'i' },"
> in pg_am.dat
> and add
> "{ oid =
's not my
require. And I need to know
add those in pg_proc.dat and pg_am.dat, if it won't create access method for
spb, what else I need to
do?
--
jack...@gmail.com
's not my
require. And I need to know
add those in pg_proc.dat and pg_am.dat, if it won't create access method for
spb, what else I need to
do?
--
jack...@gmail.com
Hi,
On Sat, Oct 29, 2022 at 08:15:54PM +0800, jack...@gmail.com wrote:
> On 2022-10-29 19:19:28 +0800, jack...@gmail.com wrote:
> > I'm trying to add a new index, but when I finish it, I use “ create index
> > xxx_index on t1 using xxx(a); ”,it gives me access method
On 2022-10-29 19:19:28 +0800, jack...@gmail.com wrote:
> I'm trying to add a new index, but when I finish it, I use “ create index
> xxx_index on t1 using xxx(a); ”,it gives me access method "my_index" does not
> exist
> And I don't know where this message is from, can yo
dat for my index. And I add codes
in contrib and backend/access/myindex_name, is there any other places I need to
add some infos? Who can help me?
jack...@gmail.com
dat for my index. And I add codes
in contrib and backend/access/myindex_name, is there any other places I need to
add some infos? Who can help me?
jack...@gmail.com
lt
* node), regardless of the context of the VALUES list. It's up to parse
* analysis to reject that where not valid.
*/
List*valuesLists; /* untransformed list of expression lists */
I need to understand what this is used for?
jack...@gmail.com
> On Oct 25, 2022, at 7:55 AM, jack...@gmail.com wrote:
>
>
>
> typedef enum SetOperation
> {
> SETOP_NONE = 0,
> SETOP_UNION,
> SETOP_INTERSECT,
> SETOP_EXCEPT
> } SetOperation;
> jack...@gmail.com
Please use just text.
What ‘diale
typedef enum SetOperation
{
SETOP_NONE = 0,
SETOP_UNION,
SETOP_INTERSECT,
SETOP_EXCEPT
} SetOperation;
jack...@gmail.com
me
nothing,https://files.slack.com/files-pri/T0FS7GCKS-F048MD5BTME/quzk_6bk0sug60__f_0wh2l.png
jack...@gmail.com
I'm adding a new index in pg, but I find this.
Duplicate OIDs detected:
Duplicate OIDs detected:
357
357
found 1 duplicate OID(s) in catalog data
found 1 duplicate OID(s) in catalog data
what sql should I run to find one?
expect,
even when you take into account
------
Yan-Jack Chen (陈雁)
Tel: +8613957141340
Addr: No.567 XinCheng Rd, Binjiang District, Hangzhou, China, 310053
-Original Message-
From: Tom Lane
Sent: 2021年11月15日 23:09
To: Chen, Yan-Jack (NSB - CN/Han
On Sat, Jan 9, 2021 at 12:18 PM Tom Lane wrote:
> Jack Orenstein writes:
> > I am writing a Postgres extension, and thought that I had memory
> > corruption, (thanks for the --enable-cassert lead). I might, but It now
> > looks like I need to understand the use of shar
be way off. Is there a
presentation or paper that explains how GIN works?
Jack Orenstein
clarify my confusion, and perhaps point me at a tutorial on correct
usage of the interfaces for LWLocks and shared memory, (I haven't been able
to find one).
Thank you.
Jack Orenstein
, but this crash occurs
without the index.)
I'm interested in advice on how to go about hunting down my problem.
Something along the lines of a debugging malloc, or valgrind, for Postgres.
Jack Orenstein
appears to be involved in
programming language extensions, and the function is declared in plpgsql.h.
Looking at various contrib modules, I see
explicit declarations of _PG_init(void).
Should _PG_init(void) be declared in someplace included by postgres.h or
fmgr.h?
Jack Orenstein
Thank you, the missing STORAGE clause was the problem.
As for the non-standard coding: I did start out with more correct coding,
and it wandered off as I tried to figure out what was causing the crash.
Jack Orenstein
On Sun, Jan 3, 2021 at 7:57 PM Tom Lane wrote:
> Jack Orenstein wri
ect, and that the PG_RETURN_POINTER statement is
being reached.
I have been reading the Postgres docs, and comparing my code to the
examples in contrib, and cannot see what I'm doing wrong. Can anyone see a
problem in what I've described? Or point me in the right direction to debug
this problem?
Thanks.
Jack Orenstein
to subsume GIN index capabilities?
Jack Orenstein
query times will grow with table size, and that partitioning,
combined with parallel query execution can address that problem. I'm more
wondering about problems in maintaining tables and indexes once we have
10B, 20B, ... rows.
Jack Orenstein
> That happens when you modify the config file
Thank you, that makes sense of course — and I had to change the config file to
set `enabled=1` to enable the testing repo when we first installed.
manually uninstall and re-install to get
the stable repo in the list in /etc/yum.repos.d/pgdg-redhat-all.repo
rpm -qa | grep pgdg
rpm -e pgdg-redhat-repo-42.0-14.noarch
dnf install -y
https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm
Jack
t I didn't get rc1 for a while after the release.
Is the repository RPM updated on an automatic schedule?
Ideally I'd like to get db<>fiddle updated on the day of the release, do I have
to switch back to Debian from CentOS to achieve that?
Jack
Hi All,
In PG-11, procedures were introduced. In the pg_partman tool, a procedure
named run_maintenance_proc was developed to replace run_maintenance
function. I was trying to call this procedure in pg_partman with
SPI_execute() interface and this is the command being executed:
CALL
,
Jack
On Tue, Aug 14, 2018 at 11:57 AM Jack Cushman wrote:
> Hi --
>
> I'm wondering whether, in my specific situation, it would be safe to copy
> a database cluster's data folder, and bring up the copy for read access,
> without copying a tablespace linked from it. My situation (
Thanks for such quick and helpful answers! My plan sounds probably better
to avoid, but if it turns out to be necessary, you all gave me some helpful
avenues and things to look out for.
Best,
Jack
On Tue, Aug 14, 2018 at 1:06 PM, Stephen Frost wrote:
> Greetings,
>
> * Jack Cushm
:
- I could pg_dump and restore, but the 100GB table has lots of indexes and
I'd rather not have to reindex on the release server each week.
- I could replicate with pglogical and use some sort of blue-green setup on
the release server to cut a release, but this adds a lot of moving parts,
especially to deal with schema migrations.
Thanks for any advice you might have!
-Jack
like gzip, -Fc, -Ft, -Fd -j 4(faster).
--
Jack Gao
jackg...@outlook.com
> -Original Message-
> From: Ron <ronljohnso...@gmail.com>
> Sent: Tuesday, April 17, 2018 9:44 AM
> To: Adrian Klaver <adrian.kla...@aklaver.com>; pgsql-general gene...@postgresql.org>
en you will need to use a JDBC3
version of the driver, which will by necessity not be current, found in Other
Versions.
PostgreSQL JDBC 4.2 Driver, 42.2.2
--
Jack Gao
jackg...@outlook.com
> -Original Message-
> From: vaibhav zaveri <vaibhavzave...@gmail.com>
> Sent: Tuesday
ersion is supported by PostgreSQL?
>
>
> Regards,
> Vaibhav Zaveri
Hi
Do you mean jdbc?
postgresql supports most versions of jdbc
https://jdbc.postgresql.org/download.html
--
Jack Gao
jackg...@outlook.com
gresql.org/docs/current/static/backup-dump.html#BACKUP-DUMP-RESTORE
...
...
The ability of pg_dump and psql to write to or read from pipes makes it
possible to dump a database directly from one server to another, for example:
pg_dump -h host1 dbname | psql -h host2 dbname
--
Jack Gao
jackg...@outlook.com
t;
$PGDATA/postgresql.conf
sed -ir "s/#*log_directory.*/log_directory = 'pg_log'/"
$PGDATA/postgresql.conf
sed -ir "s/#*log_statement.*/log_statement= 'all'/" $PGDATA/postgresql.conf
Execute this SQL and send error message in the log.
regards
Jack Gao
--
Sent from: http://www.postgresql-archive.org/PostgreSQL-general-f1843780.html
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