syntax error during function call

Hello,

I have a function with three parameters that would populate a table in one schema from another table of the same name in another schema.  The tables are dynamically selected at execution time.

CREATE OR REPLACE FUNCTION schema_1.getAllSnapShot(user_id text, begin_dt date, end_dt date) RETURNS SETOF schema_1.snapshot_table AS

$BODY$

DECLARE

    r schema_1.snapshot_table%rowtype;

BEGIN

    FOR r IN SELECT * FROM schema_1.snapshot_table

    LOOP

            DECLARE whoami text := r;

            BEGIN

            EXECUTE 'SELECT *, $1, now() INTO schema_1.'||whoami||' FROM schema_2.'||whoami||' where created_dt between $2 and $3;'

            USING user_id, begin_dt, end_dt;

            END;

        RETURN NEXT r;

    END LOOP;

    RETURN;

END

$BODY$

LANGUAGE 'plpgsql' ;

The snapshot_table has only one column for the table name.

The function call would look like this:

SELECT * FROM schema_1.getAllSnapShot('xyz9','2009-01-01','2010-01-01');

However, I get this error:

ERROR:  syntax error at or near "("

LINE 1: SELECT *, $1, now() INTO schema_1.(table_A) FROM schema_2.(table_A) where created_dt between $2 and $3;

I tried different escape characters for the row variable (whoami) but get the same error as above.

I also tried other approaches, including using “tabname::regclass” for the table names but nothing seem to work.

Any suggestion would be greatly appreciated.

Thanks,

Jeff