Re: Why I cannot call a function from within an SQL function?

I'm no expert, but:
i might say U should Escape the ` ' ´ char in "(select split_part(category,
'-', 2) " using something like "(select split_part(category, \'-\', 2)" or
however it should be...

A: Because it messes up the order in which people normally read text.
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On Fri, Feb 20, 2009 at 2:02 PM, Eus <eus(at)member(dot)fsf(dot)org> wrote:

> Hi Ho!
>
> The following query works well:
>
> select count (*)
> from item_audit
> where audit_ts >= '2008-05-30 00:00:00'
> and audit_ts <= '2008-10-30 00:00:00'
> and 'wst' != (select split_part(category, '-', 2)
> from description
> where split_part(category, '-', 1) = 'item'
> and shorthand = status
> )
>
> But, when I transform it into the following SQL function, the function
> cannot be created barking:
>
> ERROR: syntax error at or near "-"
> LINE 6: and $1 != (select split_part(category 2)"
>
> create or replace function get_I(text, timestamp, timestamp) returns
> bigint as
> 'select count (*)
> from item_audit as ia
> where audit_ts >= $2
> and audit_ts <= $3
> and $1 != (select split_part(category, '-', 2)
> from description
> where split_part(category, '-', 1) = 'item'
> and shorthand = ia.status
> )
> ' language sql;
>
> What's wrong?
>
> Thank you.
>
> Best regards,
> Eus (FSF member #4445)
>
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