SHOW datestyle;
DateStyle
-----------
ISO, MDY
(1 row)
INSERT INTO container VALUES ('13/01/2010');
ERROR: date/time field value out of range: "13/01/2010"
HINT: Perhaps you need a different "datestyle" setting.
SET datestyle = "ISO, DMY";
SET
INSERT INTO container VALUES ('13/01/2010');
INSERT 0 1
SET datestyle = default;
SET
http://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-DATESTYLE
DateStyle – Sets the display format
for date and time values, as well as
the rules for interpreting ambiguous
date input values.
For historical reasons, this variable
contains two independent components:
the output format specification (ISO,
Postgres, SQL, or German) and the
input/output specification for
year/month/day ordering (DMY, MDY, or
YMD).
Of course it’s best to use unambiguous input format (ISO 8601), but there is no problem to adjust it as you need.