>
> This does not function any more under PG 8.3-beta1:
>
> select '5'::varchar = 5;
> ERROR: operator does not exist: character varying = integer
>
> select '5'::char = 5;
> ERROR: operator does not exist: character = integer
you cannot compare any character type and numeric type. If you wont to
do, you have to cast to text or use function to_char or to_numeric.
>
>
> Note that this still works:
> select '5' = 5;
>
It is integer = integer. Value in apostrophes doesn't mean 100% char
or varchar in Postgres. Pg detects unknown type (in apostrophes)
accordance with know type (integer)
try:
postgres=# select '5.0'=5;
ERROR: invalid input syntax for integer: "5a"
postgres=# select '5.0'=5;
ERROR: invalid input syntax for integer: "5.0"
postgres=# select '5.0'=5.0;
?column?
----------
t
(1 row)
> ---------------------------(end of broadcast)---------------------------
> TIP 3: Have you checked our extensive FAQ?
>
> http://www.postgresql.org/docs/faq
>