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Re: plpgsql at what point does the knowledge of the query come in?

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On 20/10/2011 22:13, Henry Drexler wrote:
> On Thu, Oct 20, 2011 at 4:57 PM, Raymond O'Donnell <rod@xxxxxx
> <mailto:rod@xxxxxx>> wrote:
> 
> 
>     Not sure what you mean by the above... that statement only gets executed
>     once, so the value of nnlength doesn't change.
> 
>     Ray.
> 
> 
> 
> doesn't the function get executed once for each row in the query?
> so in the below example

Ah, OK - my misunderstanding - I thought you meant within one execution
of the function.

> threeee will match threee
> but fiveu will not match five because it has not reset  nnlength :=
> length(newnode); to measure the length of fiveu but is retaining the
> length of threeee

Are you sure about this? Try using RAISE NOTICE statements in the
function to output the value of nnlength each time it's executed.

Ray.

-- 
Raymond O'Donnell :: Galway :: Ireland
rod@xxxxxx

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