Re: proposal - assign result of query to psql variable

2012/7/26 David Fetter <david@fetter.org>:
> On Thu, Jul 26, 2012 at 08:31:13AM +0200, Pavel Stehule wrote:
>> 2012/7/26 David Fetter <david@fetter.org>:
>> > On Thu, Jul 26, 2012 at 01:36:17AM -0400, Tom Lane wrote:
>> >> Pavel Stehule <pavel.stehule@gmail.com> writes:
>> >> > \eset variable [, variable [..]] query --  it raise exception when
>> >> > more than one row is returned or when no row is returned
>> >>
>> >> Better would be a variant on \g, that is you type in the query and
>> >> then tell it where to put the result.  We have learned the hard way
>> >> that putting SQL commands into the arguments of backslash commands
>> >> is a horrid idea.  Maybe
>> >>
>> >>       select x,y,... from ...
>> >>       \gset var1 var2 ...
>> >
>> > How about
>> >
>> > \gset var1,,,var2,var3...
>> >
>>
>> I don't like this - you can use fake variable - and ignoring some
>> variable has no big effect on client
>
> Why assign to a variable you'll never use?

so why you get data from server, when you would not to use it ?

no offence, probably it is not hard to implement it - because we use
own parser, but I see this proposal little bit obscure

Tom - your proposal release of stored dataset just before next
statement, not like now on the end of statement?

Regards

Pavel


>
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> David.
>
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