Unexpected result for SQLGetTypeInfo for SQL_TYPE_TIMESTAMP

I'm using psqlodbc-07.03.02.00, (odbc driver 3.0) to access psql server from Windows (Postgres Server version is 7.2)

Before to start I tryed a simple test.

In my database I created a simple table with just a timestamp field:

CREATE TABLE table1 (
field1 timestamp (6) without time zone
)

You can see that the field1 has a decimal precision of 6.

My test odbc application declared SQL_ATTR_ODBC_VERSION as SQL_OV_ODBC3

retcode = SQLSetEnvAttr( henv, SQL_ATTR_ODBC_VERSION, (SQLPOINTER)SQL_OV_ODBC3, 0 );

Then I called SQLGetTypeInfo(SQL_TYPE_TIMESTAMP), so I was expected to found

0 for MINIMUM_SCALE
6 for MAXIMUM_SCALE

The SQLGetTypeInfo( SQL_TYPE_TIMESTAMP ) function returns:

19 for COLUMN_SIZE
0 for both MINIMUM_SCALE and MAXIMUM_SCALE

Then I've tried to call SQLColumns() function on "table1", field "field1".

retcode = SQLColumns(hstmt,
NULL, 0, /* All catalogs */
NULL, 0, /* All schemas */
(SQLCHAR*)"table1", SQL_NTS,
(SQLCHAR*)"field1", SQL_NTS);

Again it returns:

19 for COLUMN_SIZE
0 for DECIMAL_DIGITS

I was expecting to found 26 for COLUMN_SIZE and 6 for DECIMAL_DIGITS.

What's wrong????

Please HELP, IT'S URGENT!

-G.Z.-