You'll need to use the EXECUTE command to build the SQL dynamically.
See:
http://www.postgresql.org/docs/7.4/interactive/plpgsql-
statements.html#PLPGSQL-STATEMENTS-EXECUTING-DYN
On Nov 23, 2004, at 2:56 PM, Alexander Pucher wrote:
> Hi,
>
> struggling around with this for some time:
>
> How can I use a table name as a parameter in a PL/pgSQL function ??
>
> I tried this but it didn't work...
>
>
> CREATE OR REPLACE FUNCTION my_row_count(text) RETURNS int4 AS '
> DECLARE
> num_rows int4;
> BEGIN
> num_rows := (select count(*) from $1);
> RETURN num_rows;
> END;
> ' LANGUAGE plpgsql;
>
> Thnaks for any input!
>
> regards,
> alex.
>
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