Re: WIP: default values for function parameters

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От Andrew Dunstan
Тема Re: WIP: default values for function parameters
Дата
Msg-id 4942CDA4.9060705@dunslane.net
обсуждение исходный текст
Ответ на Re: WIP: default values for function parameters  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: WIP: default values for function parameters  (Tom Lane <tgl@sss.pgh.pa.us>)
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Tom Lane wrote:
> Michael Meskes <meskes@postgresql.org> writes:
>   
>> On Fri, Dec 12, 2008 at 10:06:30AM -0500, Tom Lane wrote:
>>     
>>> Hmm ... actually, ecpg might be a problem here anyway.  I know it has
>>> special meaning for :name, but does it allow space between the colon
>>> and the name?  If it does then the colon syntax loses.  If it doesn't
>>>       
>
>   
>> No. Here's the lexer rule:
>> <SQL>:{identifier}((("->"|\.){identifier})|(\[{array}\]))*  
>> No space possible between ":"  and {identifier}.
>>     
>
> Excellent.  I checked that psql's colon-variable feature behaves the
> same.  So it looks like the proposed "name: value" syntax would indeed
> not break any existing features.  Barring better ideas I think we should
> go with that one.
>
>             
>   

Does that mean the whitespace following the : will be required? (I could 
figure it out but brain is otherwise occupied).

cheers

andrew


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