from sqlalchemy import *
from sqlalchemy import sql
from sqlalchemy.databases import sybase
from sqlalchemy.test import *
class CompileTest(TestBase, AssertsCompiledSQL):
__dialect__ = sybase.dialect()
def test_extract(self):
t = sql.table('t', sql.column('col1'))
mapping = {
'day': 'day',
'doy': 'dayofyear',
'dow': 'weekday',
'milliseconds': 'millisecond',
'millisecond': 'millisecond',
'year': 'year',
}
for field, subst in mapping.items():
self.assert_compile(
select([extract(field, t.c.col1)]),
'SELECT DATEPART("%s", t.col1) AS anon_1 FROM t' % subst)
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