Re: proposal: multiple psql option -c

2015-07-28 5:24 GMT+02:00 Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>:

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> 2015-07-27 21:57 GMT+02:00 Andrew Dunstan <andrew(at)dunslane(dot)net>:
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>>
>> On 07/27/2015 02:53 PM, Pavel Stehule wrote:
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>>> 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()"
>>>
>>>
>>>
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>> 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.
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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

some like

psql -C "\dt \dn" -C "select 10"

It is looking better than psql -c "\dt \dn \n select 10"

Regards

Pavel

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> Pavel
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>> cheers
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>> andrew
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