When calling SQLGetInfo(SQL_TIMEDATE_FUNCTIONS), psqlodbc tells that WEEKOFDAY and WEEK are not supported. But in convert.c, it converts these two functions to extrat(dow/week from $1). So if you just send dayofweek() in a query, PostgreSQL will return correct values.
So in this method of info.c:
RETCODE SQL_API
PGAPI_GetInfo(HDBC hdbc,
SQLUSMALLINT fInfoType,
PTR rgbInfoValue,
SQLSMALLINT cbInfoValueMax,
SQLSMALLINT * pcbInfoValue)
You need to append two more bits:
case SQL_TIMEDATE_FUNCTIONS: /* ODBC 1.0 */
len = 4;
value = (SQL_FN_TD_NOW | SQL_FN_TD_DAYOFWEEK | SQL_FN_TD_WEEK );
break;
I am using 10.03.0000.
thanks,
Song X. Gao