Re: proposal: multiple psql option -c
| От | Pavel Stehule |
|---|---|
| Тема | Re: proposal: multiple psql option -c |
| Дата | |
| Msg-id | CAFj8pRDSu1nQOME92GvQFzkhrt_gbiLsY8grg+pSjXQzOXAyvg@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: proposal: multiple psql option -c (Pavel Stehule <pavel.stehule@gmail.com>) |
| Ответы |
Re: proposal: multiple psql option -c
Re: proposal: multiple psql option -c |
| Список | pgsql-hackers |
2015-07-28 5:24 GMT+02:00 Pavel Stehule <pavel.stehule@gmail.com>:
2015-07-27 21:57 GMT+02:00 Andrew Dunstan <andrew@dunslane.net>:
On 07/27/2015 02:53 PM, Pavel Stehule wrote:
I am trying to run parallel execution
psql -At -c "select datname from pg_database" postgres | xargs -n 1 -P 3 psql -c "select current_database()"
I don't think it's going to be a hugely important feature, but I don't see a problem with creating a new option (-C seems fine) which would have the same effect as if the arguments were contatenated into a file which is then used with -f. IIRC -c has some special characteristics which means it's probably best not to try to extend it for this feature.ok, I'll try to write patch.
I have a question. Can be -C option multiple?
The SQL is without problem, but what about \x command?
postgres=# \dt \dn select 10;
No relations found.
List of schemas
┌──────┬───────┐
│ Name │ Owner │
╞══════╪═══════╡
└──────┴───────┘
(0 rows)
\dn: extra argument "10;" ignored
postgres=# \dt \dn select 10;
No relations found.
List of schemas
┌──────┬───────┐
│ Name │ Owner │
╞══════╪═══════╡
└──────┴───────┘
(0 rows)
\dn: extra argument "10;" ignored
some like
psql -C "\dt \dn" -C "select 10"
It is looking better than psql -c "\dt \dn \n select 10"
Regards
Pavel
Pavel
cheers
andrew
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