Re: Need to Iterate the record in plpgsql

If you do not need information about column types you can use hstore
for this purpose.

[local]:5432 grayhemp(at)grayhemp=# select * from r limit 1;
a | b | c
---+---+---
1 | 2 | 3
(1 row)

[local]:5432 grayhemp(at)grayhemp=# select * from each((select hstore(r)
from r limit 1));
key | value
-----+-------
a | 1
b | 2
c | 3
(3 rows)

The key and value columns here of the text type.

On Fri, Aug 31, 2012 at 6:55 PM, Yelai, Ramkumar IN BLR STS
<ramkumar(dot)yelai(at)siemens(dot)com> wrote:
> Hi All,
>
> I am facing a issue in Iterating the RECORD.
>
> The problem is, I would like to iterate the RECORD without using sql query,
> but as per the syntax I have to use query as shown below.
>
> FOR target IN query LOOP
> statements
> END LOOP [ label ];
>
> In my procedure, I have stored one of the procedure output as record, which
> I am later using in another iteration. Below is the example
>
>
> CREATE OR REPLACE FUNCTION test2()
>
> Rec1 RECORD;
> Rec2 RECORD;
> Rec3 RECORD;
>
> SELECT * INTO REC1 FROM test();
>
> FOR REC2 IN ( select * from test3())
> LOOP
> FOR REC3 IN REC2 --- this syntax does not allowed by Postgresql
> LOOP
>
> END LOOP
> END LOOP
>
> As per the example, How can I iterate pre stored record.
>
> Please let me know if you have any suggestions.
>
> Thanks & Regards,
> Ramkumar
>
>
>
>
>

--
Sergey Konoplev

a database architect, software developer at PostgreSQL-Consulting.com
http://www.postgresql-consulting.com

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