Re: varchar for loops possible?

As Tom said, you need to declare tmp_var as per the result set coming from
select distinct (value) column.
I gave a try on it.

create or replace function prn_test() returns void as $$
declare
tmp_var test_table.name%type; ///Test_table with name column
which is varchar(20) in my case
begin
for tmp_var in (select distinct name from test_table)
loop
raise notice 'Give anything here :) ... !!!';
update test_table set name=tmp_var;
end loop;
end;
$$ language plpgsql;

---
Regards,
Raghavendra
EnterpriseDB Corporation
Blog: http://raghavt.blogspot.com/

On Sat, May 19, 2012 at 2:10 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> "J.V." <jvsrvcs(at)gmail(dot)com> writes:
> > for tmp_var in select distinct(value) from mytable where
> > value2='literal'
> > tmp_var has to be in ' ' ticks or will not work. it is failing on the
> > first FOR statment stating: "invalid input syntax for integer:
> > "some_distinct_value".
>
> Um, how do you have tmp_var declared? plpgsql seems to be acting
> as though it's an integer variable, which is not what you need if
> "value" is a varchar.
>
> regards, tom lane
>
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