Re: Question(s) about crosstab

On Tue, Dec 17, 2013 at 5:11 PM, David Johnston <polobo(at)yahoo(dot)com> wrote:

> 3) Limitation of SQL - explained below:
>
> The function call string that you pass in is just that, a string, the SQL
> construct within which it resides has no knowledge of its contents.
>
> SQL has the hard requirement that at the time you submit a query all
> columns
> must be known. If a function is polymorphic (in the sense it can output
> different columns/row-types) then when you call that function you must
> indicate which columns (and types) are going to be output by the function
> during this specific execution.
>

I guess crosstabs were not all that I hoped they were (basically pivot
tables), but thanks for the clear explanation.

Cheers,
Ken

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