Re: simple test code

> 
> DECLARE
> time1 TIMESTAMP (3);
> time2 TIMESTAMP(3);
> diff INTERVAL;
> BEGIN
> time1 := now();
> diff := INTERVAL '30' second;
> time2 := time1 + diff;
> SELECT time1, time2;
> END;
> 
> but I get an error that I cannot interpret
> 
> ERROR:  syntax error at or near "TIMESTAMP"
> LINE 3:  time1 TIMESTAMP (3);
>               ^
> 
> ********** Error **********
> 
> ERROR: syntax error at or near "TIMESTAMP"
> SQL state: 42601
> Character: 17
> 
> I also tryed to add a label in the beginning
> 
> <>
> DECLARE
> time1 TIMESTAMP (3);
> time2 TIMESTAMP(3);
> diff INTERVAL;
> BEGIN
> time1 := now();
> diff := INTERVAL '30' second;
> time2 := time1 + diff;
> SELECT time1, time2;
> END;
> 
> but then I get 
> 
> ERROR:  syntax error at or near "<<"
> LINE 1: <>
>        ^
> 
> 
> ********** Error **********
> 
> ERROR: syntax error at or near "<<"
> SQL state: 42601
> Character: 1
> 

This kind of anonymous blocks are not supported in PostgreSQL.
If you are using PG 9.0 then you can try following:
do $$
DECLARE
time1 TIMESTAMP (3);
time2 TIMESTAMP(3);
diff INTERVAL;
BEGIN
time1 := now();
diff := INTERVAL '30' second;
time2 := time1 + diff;
RAISE NOTICE '% %', time1, time2;
END;$$ language plpgsql;


Thanks & Regards,
Vibhor Kumar