Re: BUG #8385: greek symbols as function name

"kolmyk(at)hotmail(dot)com" <kolmyk(at)hotmail(dot)com> wrote:

> Operating system:  Windows 8

> create or replace function α(β int, ξ int, μ float) returns float as $$
> select (β + ξ) * μ $$ language sql;
> select α(1, 2, 0.1);
> -- it works
> select ascii(proname), * from pg_proc where length(proname) = 1;
> -- return code 60536 although select ascii('α') retruns 945
> select * from pg_proc where proname = 'α';
> -- returns nothing

Here's what I get on Ubuntu 12.10.  The bug is likely to be
Windows-specific.  Whether it is a bug in Windows or in PostgreSQL
character-handling under Windows I can say myself, since I haven't
had any reason to use Windows for years.

test=# create or replace function α(β int, ξ int, μ float) returns float as $$
select (β + ξ) * μ $$ language sql;
CREATE FUNCTION
test=# \df+
                                                                              List of functions
 Schema | Name | Result data type |              Argument data types               |  Type  | Security | Volatility |  Owner  | Language |     Source code     | Description
--------+------+------------------+------------------------------------------------+--------+----------+------------+---------+----------+---------------------+-------------
 public | α    | double precision | "β" integer, "ξ" integer, "μ" double precision | normal | invoker  | volatile   | kgrittn | sql      |                    +|
        |      |                  |                                                |        |          |            |         |          | select (β + ξ) * μ  |
(1 row)

test=# select α(1, 2, 0.1);
  α  
-----
 0.3
(1 row)

test=# select ascii(proname), proname from pg_proc where length(proname) = 1;
 ascii | proname
-------+---------
   945 | α
(1 row)

test=# select ascii('α');
 ascii
-------
   945
(1 row)

test=# select proname from pg_proc where proname = 'α';
 proname
---------
 α
(1 row)

--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company