Greetings,
* Олег Самойлов (spl...@ya.ru) wrote:
> Ah, thanks. I am not a developer of PostgreSQL. I am a developer in
> PostgreSQL. :) And I see two hash indexes on the same data and one of them 43
> times bigger then other, this looked like something terribly wrong. Just free
> idea how to
Ah, thanks. I am not a developer of PostgreSQL. I am a developer in PostgreSQL.
:) And I see two hash indexes on the same data and one of them 43 times bigger
then other, this looked like something terribly wrong. Just free idea how to
considerably improve your product.
> 13 нояб. 2018 г., в
On 2018-Nov-13, Олег Самойлов wrote:
> Very much better. What about to copy paste algorithm from
> gin(jsonb_path_ops) to the hash index?
You're welcome to submit patches.
--
Álvaro Herrerahttps://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training &
I am just doing experiment what a type a most suitable for enumeration in
PostgreSQL. And what index. And this effect looked for me very strange. There
is in the PostgreSQL one another hash index. This is gin(jsonb_path_ops) for
the jsob type. It is also use hash internally, but it is much
Am 13.11.2018 um 19:12 schrieb Ron:
On 11/13/2018 12:07 PM, Andreas Kretschmer wrote:
Am 13.11.2018 um 17:42 schrieb Олег Самойлов:
insert into gender (gender) select case when random<0.50 then
'female' when random<0.99 then 'male' else 'other' end from (select
random() as random,
Am 13.11.2018 um 17:42 schrieb Олег Самойлов:
insert into gender (gender) select case when random<0.50 then 'female'
when random<0.99 then 'male' else 'other' end from (select random() as
random, generate_series(1,:table_size)) as subselect;
is that really your intended data distibution?
On 11/13/2018 12:07 PM, Andreas Kretschmer wrote:
Am 13.11.2018 um 17:42 schrieb Олег Самойлов:
insert into gender (gender) select case when random<0.50 then 'female'
when random<0.99 then 'male' else 'other' end from (select random() as
random, generate_series(1,:table_size)) as subselect;
Олег Самойлов wrote:
> \set table_size 100
> begin;
> create table gender (gender varchar);
>
> insert into gender (gender) select case when random<0.50 then 'female' when
> random<0.99 then 'male' else 'other' end from (select random() as random,
> generate_series(1,:table_size)) as
CentOS 7
$ rpm -q postgresql10
postgresql10-10.6-1PGDG.rhel7.x86_64
SQL script for psql:
\set table_size 100
begin;
create table gender (gender varchar);
insert into gender (gender) select case when random<0.50 then 'female' when
random<0.99 then 'male' else 'other' end from (select
