How to set decimal(7,2)?

sim wrote:

How come when I try to set a variable as decimal(7,2), it
automatically complains that decimal(7,2) is not acceptable; however,
decimal(7,0) is okay? It changes to float4 by itself?

thanks.

From man pgbuiltin:

<DELETED>
There are some data types defined by SQL/92 syntax which
are mapped directly into native Postgres types. Note that
the "exact numerics" decimal and numeric have fully imple�
mented syntax but currently (PostgreSQL v6.3) support only
a limited range of the values allowed by SQL/92.

List of SQL/92 types
POSTGRES Type SQL/92 Type Meaning
char(n) character(n) fixed-length character string
varchar(n) character varying(n) variable-length character
string
float4/8 float(p) floating-point number with
precision p
float8 double precision double-precision
floating-point number
float8 real double-precision
floating-point number
int2 smallint signed two-byte integer
int4 int signed 4-byte integer
int4 integer signed 4-byte integer
int4 decimal(p,s) exact numeric for p <= 9, s =
0
int4 numeric(p,s) exact numeric for p == 9, s =
0
timestamp timestamp with time zone date/time
timespan interval general-use time span

Jose'