| From: | <pbj(at)cmicdo(dot)com> |
|---|---|
| To: | Teodor Sigaev <teodor(at)sigaev(dot)ru>, Paul Jones <pbj(at)cmicdo(dot)com>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: MongoDB 3.2 beating Postgres 9.5.1? |
| Date: | 2016-07-19 13:07:22 |
| Message-ID: | 265279406.1665658.1468933642666.JavaMail.yahoo@mail.yahoo.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On Tuesday, July 19, 2016 6:19 AM, Teodor Sigaev <teodor(at)sigaev(dot)ru> wrote:
> CREATE INDEX json_tables_idx ON json_tables USING GIN (data jsonb_path_ops);
> Bitmap Heap Scan on json_tables (cost=113.50..37914.64 rows=10000 width=1261)
> (actual time=2157.118..1259550.327 rows=909091 loops=1)
> Recheck Cond: (data @> '{"name": "AC3 Case Red"}'::jsonb)
> Rows Removed by Index Recheck: 4360296
> Heap Blocks: exact=37031 lossy=872059
Hmm, looks like too small work_mem because lossy heap block count is too big.
Ok, thanks.
--
Teodor Sigaev E-mail: teodor(at)sigaev(dot)ru
WWW: http://www.sigaev.ru/
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Joshua D. Drake | 2016-07-19 13:37:18 | Re: MediaWiki + PostgreSQL is not ready for production? |
| Previous Message | pbj | 2016-07-19 13:05:00 | Re: MongoDB 3.2 beating Postgres 9.5.1? |