convertJsonbObject convert JsonValue to Jsonb.
Jsonb->vl_len_ is 4 byte
JsonbContainer->header is 4 bytes
JsonbContainer->children is an array of two elements, that's 8 bytes
following the k/v part, 20 bytes
In total 36 bytes.
When Jsonb is stored to disk, I guess some conversion reduces the
On 7/31/23 04:10, jian he wrote:
hi.
drop table x;
create table x(js jsonb);
insert into x select '{"Hello world":1}'::jsonb;
select pg_column_size(js) from x;-- return 33.
based on src/include/utils/jsonb.h
The key and value part is 20 bytes (is it correct?), Jsonb->vl_len_ is
4 byte,
On 7/31/23 05:47, Amn Ojee Uw wrote:
In my Debian 12, I have removed the following apps from my system by
using the following commands:
/*sudo apt-*//*get*//*–purge *//*remove*//*postgresql
postgresql*//*-15*//*postgresql-client-common postgresql-common
postgresql-contrib*//**//*sudo
On 7/31/23 07:47, Amn Ojee Uw wrote:
In my Debian 12, I have removed the following apps from my system by using
the following commands:
/*sudo apt-*//*get*//*–purge *//*remove*//*postgresql
postgresql*//*-15*//*postgresql-client-common postgresql-common
postgresql-contrib*//**//*sudo
On 2023-Jul-31, Amn Ojee Uw wrote:
> In my Debian 12, I have removed the following apps from my system by using
> the following commands:
> *dpkg -l | grep postgres*
> rc postgresql-12 12.15-1.pgdg120+1 amd64 The
> World's Most Advanced Open Source Relational Database
>
In my Debian 12, I have removed the following apps from my system by
using the following commands:
/*sudo apt-*//*get*//*–purge *//*remove*//*postgresql
postgresql*//*-15*//*postgresql-client-common postgresql-common
postgresql-contrib*//**//*sudo apt-*//*get*//*–purge
Great, thanks a lot!
I will test it on my system.
Myself, I tried to do it in C with libpq, but got stuck at reading a LO...
On Sat, 29 Jul 2023 at 19:57, Erik Wienhold wrote:
> > “SELECT md5(lo_get(loid));” doesnt work — “large object is too large”.
> >
> > Is there any other way to do it?
hi.
drop table x;
create table x(js jsonb);
insert into x select '{"Hello world":1}'::jsonb;
select pg_column_size(js) from x; -- return 33.
based on src/include/utils/jsonb.h
The key and value part is 20 bytes (is it correct?), Jsonb->vl_len_ is 4
byte, JsonbContainer->header is 4 bytes.
You can see this document.
https://www.postgresql.org/docs/current/pgupgrade.html
Yours,
WenYi
---Original---
From: "Amn Ojee Uw"
In MemoryContext source code:
/* context_freelists[0] is for default params, [1] for small params */
static AllocSetFreeList context_freelists[2] =
{
{
0, NULL
},
{
0, NULL
}
};
I really don't know what this variable mean, can someone share me with your
view?
Thanks in advance!
Tom,
i followed your instructions exactly and put
"--with-pgport" => 5433
in the config_default.pl and now it is working!
Thanks!
nexus / chili
Stefan Priess
Softwareentwicklung
Tel: +49 6221 18079-10
E-Mail: stefan.pri...@nexus-chili.com
NEXUS / CHILI GmbH, Friedrich-Ebert-Str. 2,
>> postgres=# insert into t select i, md5(i::text), md5(i::text), md5(i::text)
>> from generate_series(1,100) i;
>..
>> client backend | 207 | normal
>> client backend | 0 | vacuum
>>
>> Shouldn't these evictions show up under context blkwrite? The description in
>> docs is:
Good morning Tom,
I tried adding
pgport=> 5433, # --with-pgport=
to the config_default.pl file. And
$config->{pgport} = 5433;
to the config.pl file.
But the default port is still 5432...
nexus / chili
Stefan Priess
Softwareentwicklung
Tel: +49 6221 18079-10
E-Mail:
Sorry, I meant that I need to change the default port from 5432 to 5433.
nexus / chili
Stefan Priess
Softwareentwicklung
Tel: +49 6221 18079-10
E-Mail: stefan.pri...@nexus-chili.com
NEXUS / CHILI GmbH, Friedrich-Ebert-Str. 2, 69221 Dossenheim/Heidelberg
www.nexus-chili.com
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