Re: operator is only a shell - Error

Thank you for your response.  Actually, I was trying to address the
following query.

select LIEN_AC_NO from deposit_lien where deposit_no='0002114029832' and
deposit_sub_no='1' and unlien_dt is null and unlien_remarks is null;

In the above query "deposit_sub_no" column is "numeric" type and passing
'1' (as varchar).  To address this I'd created the function and operator
as I'd mentioned in the earlier mail.  Even the following query throws
error after creating the function and operator.

select * from deposit_lien where deposit_no='0002114029832';

ERROR: operator is only a shell: character varying = numeric LINE 1:
select * from deposit_lien where deposit_no='0002114029832' ^ SQL state:
42883 Character: 44

In the above query "deposit_no" column is having "varchar" data type. 
But before creating the function and operator it was working fine. 
Tried dropping the same, even though the same error.  How to proceed now?

Thanks,

Rajesh S

On 15-03-2024 19:10, Greg Sabino Mullane wrote:
> On Fri, Mar 15, 2024 at 6:26 AM Rajesh S <rajesh(dot)s(at)fincuro(dot)com> wrote:
>
> I wanted to implement a new "=" (equal) operator with LEFTARG as
> numeric and RIGHTARG as varchar.  But after creating the function
> and operator, psql shows the error "operator is only a shell:
> character varying = numeric
>
> Your operator has numeric on the left and varchar on the right. But
> your query is doing numeric on the RIGHT. Probably want to make a
> matching one to cover both cases.
>
> Cheers,
> Greg
>