Re: [BUGS] SQL Bug

On 10/06/2016 01:22 PM, Bujji Babu wrote:
> Version string: PostgreSQL 9.5.4 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4),
64-bit
> Please let me know if anyone knows how to fix this. below query works fine in version 9.4.
> select * from connectby('emp','empid','mgrid','1',0)
> AS t(keyid text, parent_keyid text, level int);
>
> ERROR: invalid return type DETAIL: SQL key field type text does not match return key field type integer. **********
Error********** ERROR: invalid return type SQL state: 42804 Detail: SQL key field type text does not match return key
fieldtype integer.
 

Try:

select * from connectby('emp','empid','mgrid','1','0')
AS t(keyid integer, parent_keyid integer, level int);


connectby() was made more strict about the datatypes matching in 9.5. 
See commit 37507962c3d2123b0f21c50d6172fd0b1e059fe7.

- Heikki