Python sqlalchemy.LargeBinary() Examples
The following are 30
code examples of sqlalchemy.LargeBinary().
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Example #1
| Source File: e3db52a480f8_alter_log_data_type.py From chainerui with MIT License | 8 votes |
|
def upgrade():
conn = op.get_bind()
temp_log_table = op.create_table(
'temp_log',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('result_id', sa.Integer(), nullable=True),
sa.Column('data', sa.LargeBinary(length=2048), nullable=True),
sa.ForeignKeyConstraint(['result_id'], ['result.id'], ),
sa.PrimaryKeyConstraint('id'))
res = conn.execute('SELECT id, result_id, data FROM log')
results = res.fetchall()
if len(results) > 0:
modified_logs = [{
'id': r[0],
'result_id': r[1],
'data': msgpack.packb(json.loads(r[2]), use_bin_type=True)}
for r in results]
op.bulk_insert(temp_log_table, modified_logs)
op.drop_table('log')
op.rename_table('temp_log', 'log')
Example #2
| Source File: test_types.py From sqlalchemy with MIT License | 6 votes |
|
def test_large_type_deprecation(self):
d1 = mssql.dialect(deprecate_large_types=True)
d2 = mssql.dialect(deprecate_large_types=False)
d3 = mssql.dialect()
d3.server_version_info = (11, 0)
d3._setup_version_attributes()
d4 = mssql.dialect()
d4.server_version_info = (10, 0)
d4._setup_version_attributes()
for dialect in (d1, d3):
eq_(str(Text().compile(dialect=dialect)), "VARCHAR(max)")
eq_(str(UnicodeText().compile(dialect=dialect)), "NVARCHAR(max)")
eq_(str(LargeBinary().compile(dialect=dialect)), "VARBINARY(max)")
for dialect in (d2, d4):
eq_(str(Text().compile(dialect=dialect)), "TEXT")
eq_(str(UnicodeText().compile(dialect=dialect)), "NTEXT")
eq_(str(LargeBinary().compile(dialect=dialect)), "IMAGE")
Example #3
| Source File: c63a27054f08_add_snapshots_to_run_storage.py From dagster with Apache License 2.0 | 6 votes |
|
def upgrade():
if not has_table('runs'):
return
if not has_table('snapshots'):
op.create_table(
'snapshots',
sa.Column('id', sa.Integer, primary_key=True, autoincrement=True, nullable=False),
sa.Column('snapshot_id', sa.String(255), unique=True, nullable=False),
sa.Column('snapshot_body', sa.LargeBinary, nullable=False),
sa.Column('snapshot_type', sa.String(63), nullable=False),
)
if not has_column('runs', 'snapshot_id'):
op.add_column(
'runs',
sa.Column('snapshot_id', sa.String(255), sa.ForeignKey('snapshots.snapshot_id')),
)
Example #4
| Source File: c63a27054f08_add_snapshots_to_run_storage.py From dagster with Apache License 2.0 | 6 votes |
|
def upgrade():
if not has_table('runs'):
return
if not has_table('snapshots'):
op.create_table(
'snapshots',
sa.Column('id', sa.Integer, primary_key=True, autoincrement=True, nullable=False),
sa.Column('snapshot_id', sa.String(255), unique=True, nullable=False),
sa.Column('snapshot_body', sa.LargeBinary, nullable=False),
sa.Column('snapshot_type', sa.String(63), nullable=False),
)
if not has_column('runs', 'snapshot_id'):
op.add_column(
'runs',
sa.Column('snapshot_id', sa.String(255), sa.ForeignKey('snapshots.snapshot_id')),
)
Example #5
| Source File: c63a27054f08_add_snapshots_to_run_storage.py From dagster with Apache License 2.0 | 6 votes |
|
def upgrade():
if not has_table('runs'):
return
if not has_table('snapshots'):
op.create_table(
'snapshots',
sa.Column('id', sa.Integer, primary_key=True, autoincrement=True, nullable=False),
sa.Column('snapshot_id', sa.String(255), unique=True, nullable=False),
sa.Column('snapshot_body', sa.LargeBinary, nullable=False),
sa.Column('snapshot_type', sa.String(63), nullable=False),
)
if not has_column('runs', 'snapshot_id'):
op.add_column(
'runs',
sa.Column('snapshot_id', sa.String(255), sa.ForeignKey('snapshots.snapshot_id')),
)
Example #6
| Source File: e5840df9a88a_create_scep_payload_table.py From commandment with MIT License | 6 votes |
|
def upgrade():
op.create_table('scep_payload',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('url', sa.String(), nullable=False),
sa.Column('name', sa.String(), nullable=True),
sa.Column('subject', commandment.dbtypes.JSONEncodedDict(), nullable=False),
sa.Column('challenge', sa.String(), nullable=True),
sa.Column('key_size', sa.Integer(), nullable=False),
sa.Column('ca_fingerprint', sa.LargeBinary(), nullable=True),
sa.Column('key_type', sa.String(), nullable=False),
sa.Column('key_usage', sa.Enum('Signing', 'Encryption', 'All', name='keyusage'), nullable=True),
sa.Column('subject_alt_name', sa.String(), nullable=True),
sa.Column('retries', sa.Integer(), nullable=False),
sa.Column('retry_delay', sa.Integer(), nullable=False),
sa.Column('certificate_renewal_time_interval', sa.Integer(), nullable=False),
sa.ForeignKeyConstraint(['id'], ['payloads.id'], ),
sa.PrimaryKeyConstraint('id')
)
Example #7
| Source File: 5b98cc4af6c9_create_profiles_table.py From commandment with MIT License | 6 votes |
|
def upgrade():
op.create_table('profiles',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('data', sa.LargeBinary(), nullable=True),
sa.Column('payload_type', sa.String(), nullable=True),
sa.Column('description', sa.Text(), nullable=True),
sa.Column('display_name', sa.String(), nullable=True),
sa.Column('expiration_date', sa.DateTime(), nullable=True),
sa.Column('identifier', sa.String(), nullable=False),
sa.Column('organization', sa.String(), nullable=True),
sa.Column('uuid', commandment.dbtypes.GUID(), nullable=True),
sa.Column('removal_disallowed', sa.Boolean(), nullable=True),
sa.Column('version', sa.Integer(), nullable=True),
sa.Column('scope', sa.Enum('User', 'System', name='payloadscope'), nullable=True),
sa.Column('removal_date', sa.DateTime(), nullable=True),
sa.Column('duration_until_removal', sa.BigInteger(), nullable=True),
sa.Column('consent_en', sa.Text(), nullable=True),
sa.Column('is_encrypted', sa.Boolean(), nullable=True),
sa.PrimaryKeyConstraint('id')
)
op.create_index(op.f('ix_profiles_uuid'), 'profiles', ['uuid'], unique=True)
Example #8
| Source File: test_types.py From sqlalchemy with MIT License | 6 votes |
|
def test_comparison(self, connection):
"""test that type coercion occurs on comparison for binary"""
expr = binary_table.c.data == "foo"
assert isinstance(expr.right.type, LargeBinary)
data = os.urandom(32)
connection.execute(binary_table.insert(), data=data)
eq_(
connection.scalar(
select([func.count("*")])
.select_from(binary_table)
.where(binary_table.c.data == data)
),
1,
)
Example #9
| Source File: BBDD.py From timecop with Apache License 2.0 | 6 votes |
|
def init_database():
Base = declarative_base()
class Model(Base):
__tablename__ = 'models'
TS_name = Column(String(250), nullable=False,primary_key=True)
TS_winner_name = Column(String(250), nullable=False)
TS_model = Column(LargeBinary())
TS_model_params = Column(String(250))
TS_metric = Column(Numeric)
TS_update = Column('TS_update', DATETIME, index=False, nullable=False,primary_key=True,default=datetime.datetime.utcnow)
class TS(Base):
__tablename__ = 'timeseries'
TS_name = Column(String(250), nullable=False,primary_key=True)
TS_data = Column(Text())
TS_update = Column('TS_update', DATETIME, index=False, nullable=False,primary_key=True,default=datetime.datetime.utcnow)
DB_NAME = 'sqlite:///Timecop_modelsv1.db'
engine = create_engine(DB_NAME)
#self.__db.echo = True
Base.metadata.create_all(engine)
Example #10
| Source File: 6cd7f193a3de_create_data.py From chainerui with MIT License | 6 votes |
|
def upgrade():
op.create_table(
'asset',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('result_id', sa.Integer(), nullable=False),
sa.Column('summary', sa.String(length=1024), nullable=True),
sa.Column('file_modified_at', sa.DateTime(), nullable=False),
sa.ForeignKeyConstraint(['result_id'], ['result.id'], ),
sa.PrimaryKeyConstraint('id')
)
op.create_table(
'bindata',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('asset_id', sa.Integer(), nullable=False),
sa.Column('name', sa.String(length=1024), nullable=False),
sa.Column('tag', sa.String(length=1024), nullable=True),
sa.Column('note', sa.String(length=1024), nullable=True),
# < 10MB
sa.Column('content', sa.LargeBinary(length=1e7), nullable=False),
sa.ForeignKeyConstraint(['asset_id'], ['asset.id'], ),
sa.PrimaryKeyConstraint('id')
)
Example #11
| Source File: compiler.py From ibis with Apache License 2.0 | 6 votes |
|
def _cast(t, expr):
arg, typ = expr.op().args
sa_arg = t.translate(arg)
sa_type = t.get_sqla_type(typ)
# specialize going from an integer type to a timestamp
if isinstance(arg.type(), dt.Integer) and isinstance(sa_type, sa.DateTime):
return sa.func.timezone('UTC', sa.func.to_timestamp(sa_arg))
if arg.type().equals(dt.binary) and typ.equals(dt.string):
return sa.func.encode(sa_arg, 'escape')
if typ.equals(dt.binary):
# decode yields a column of memoryview which is annoying to deal with
# in pandas. CAST(expr AS BYTEA) is correct and returns byte strings.
return sa.cast(sa_arg, sa.LargeBinary())
return sa.cast(sa_arg, sa_type)
Example #12
| Source File: 7e10f8660fa5_.py From passhport with GNU Affero General Public License v3.0 | 6 votes |
|
def upgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.create_table('passentry',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('connectiondate', sa.String(length=20), nullable=True),
sa.Column('password', sa.LargeBinary(length=500), nullable=True),
sa.Column('salt', sa.LargeBinary(length=500), nullable=True),
sa.PrimaryKeyConstraint('id')
)
op.create_index(op.f('ix_passentry_connectiondate'), 'passentry', ['connectiondate'], unique=False)
op.create_index(op.f('ix_passentry_password'), 'passentry', ['password'], unique=False)
op.create_index(op.f('ix_passentry_salt'), 'passentry', ['salt'], unique=False)
op.create_table('target_pass',
sa.Column('target_id', sa.Integer(), nullable=False),
sa.Column('logentry_id', sa.Integer(), nullable=False),
sa.ForeignKeyConstraint(['logentry_id'], ['passentry.id'], ),
sa.ForeignKeyConstraint(['target_id'], ['target.id'], ),
sa.PrimaryKeyConstraint('target_id', 'logentry_id')
)
# ### end Alembic commands ###
Example #13
| Source File: test_execute.py From sqlalchemy with MIT License | 5 votes |
|
def test_cache_noleak_on_statement_values(self):
# This is a non regression test for an object reference leak caused
# by the compiled_cache.
metadata = self.metadata
photo = Table(
"photo",
metadata,
Column(
"id", Integer, primary_key=True, test_needs_autoincrement=True
),
Column("photo_blob", LargeBinary()),
)
metadata.create_all()
conn = testing.db.connect()
cache = {}
cached_conn = conn.execution_options(compiled_cache=cache)
class PhotoBlob(bytearray):
pass
blob = PhotoBlob(100)
ref_blob = weakref.ref(blob)
ins = photo.insert()
with patch.object(
ins, "_compiler", Mock(side_effect=ins._compiler)
) as compile_mock:
cached_conn.execute(ins, {"photo_blob": blob})
eq_(compile_mock.call_count, 1)
eq_(len(cache), 1)
eq_(conn.exec_driver_sql("select count(*) from photo").scalar(), 1)
del blob
gc_collect()
# The compiled statement cache should not hold any reference to the
# the statement values (only the keys).
eq_(ref_blob(), None)
Example #14
| Source File: test_types.py From sqlalchemy with MIT License | 5 votes |
|
def define_tables(cls, metadata):
Table(
"z_test",
metadata,
Column("id", Integer, primary_key=True),
Column("data", Text),
Column("bindata", LargeBinary),
)
Table(
"binary_table",
metadata,
Column("id", Integer, primary_key=True),
Column("data", LargeBinary),
)
Example #15
| Source File: dbrepository.py From knowledge-repo with Apache License 2.0 | 5 votes |
|
def init(self, auto_create=True):
# TODO handle if user does not pass in table sqlite://path.db
uri_splt = self.uri.split(":")
engine_uri = ":".join(uri_splt[:-1])
table_name = uri_splt[-1]
metadata = MetaData()
postref_table = Table(table_name, metadata,
Column('id', Integer, primary_key=True),
Column('created_at', DateTime, default=func.now()),
Column('updated_at', DateTime, default=func.now(), onupdate=func.current_timestamp()),
Column('uuid', String(512)),
Column('path', String(512)),
Column('revision', Integer, default=0),
Column('status', Integer, default=self.PostStatus.DRAFT.value),
Column('ref', String(512)),
Column('data', LargeBinary))
self.engine = create_engine(engine_uri, pool_recycle=3600)
self.session = scoped_session(sessionmaker(bind=self.engine))
if auto_create:
postref_table.create(self.engine, checkfirst=True)
class PostRef(object):
pass
mapper(PostRef, postref_table)
self.PostRef = PostRef
# ------------- Repository actions / state ------------------------------------
Example #16
| Source File: test_types.py From sqlalchemy with MIT License | 5 votes |
|
def test_large_binary(self):
stream1 = self._load_stream("binary_data_one.dat")
self._test_round_trip(sqltypes.LargeBinary, stream1)
Example #17
| Source File: test_types.py From sqlalchemy with MIT License | 5 votes |
|
def test_large_legacy_types(self):
stream1 = self._load_stream("binary_data_one.dat")
self._test_round_trip(
sqltypes.LargeBinary, stream1, deprecate_large_types=False
)
Example #18
| Source File: 501dad2868bc_move_sessions_to_main_database.py From mautrix-telegram with GNU Affero General Public License v3.0 | 5 votes |
|
def upgrade():
Session = op.create_table('telethon_sessions',
sa.Column('session_id', sa.String, nullable=False),
sa.Column('dc_id', sa.Integer, nullable=False),
sa.Column('server_address', sa.String, nullable=True),
sa.Column('port', sa.Integer, nullable=True),
sa.Column('auth_key', sa.LargeBinary, nullable=True),
sa.PrimaryKeyConstraint('session_id', 'dc_id'))
SentFile = op.create_table('telethon_sent_files',
sa.Column('session_id', sa.String, nullable=False),
sa.Column('md5_digest', sa.LargeBinary, nullable=False),
sa.Column('file_size', sa.Integer, nullable=False),
sa.Column('type', sa.Integer, nullable=False),
sa.Column('id', sa.BigInteger, nullable=True),
sa.Column('hash', sa.BigInteger, nullable=True),
sa.PrimaryKeyConstraint('session_id', 'md5_digest', 'file_size',
'type'))
Entity = op.create_table('telethon_entities',
sa.Column('session_id', sa.String, nullable=False),
sa.Column('id', sa.Integer, nullable=False),
sa.Column('hash', sa.Integer, nullable=False),
sa.Column('username', sa.String, nullable=True),
sa.Column('phone', sa.Integer, nullable=True),
sa.Column('name', sa.String, nullable=True),
sa.PrimaryKeyConstraint('session_id', 'id'))
Version = op.create_table('telethon_version',
sa.Column('version', sa.Integer, nullable=False),
sa.PrimaryKeyConstraint('version'))
conn = op.get_bind()
sessions = [os.path.basename(f) for f in os.listdir(".") if f.endswith(".session")]
for session in sessions:
session_to_sqlalchemy(conn, session, Session, SentFile, Entity)
Example #19
| Source File: test_reflection.py From sqlalchemy with MIT License | 5 votes |
|
def test_binary_types(self):
specs = [
(LargeBinary(3), mysql.TINYBLOB()),
(LargeBinary(), mysql.BLOB()),
(mysql.MSBinary(3), mysql.MSBinary(3)),
(mysql.MSVarBinary(3), mysql.MSVarBinary(3)),
(mysql.MSTinyBlob(), mysql.MSTinyBlob()),
(mysql.MSBlob(), mysql.MSBlob()),
(mysql.MSBlob(1234), mysql.MSBlob()),
(mysql.MSMediumBlob(), mysql.MSMediumBlob()),
(mysql.MSLongBlob(), mysql.MSLongBlob()),
]
self._run_test(specs, [])
Example #20
| Source File: 33b3645dc7f5_.py From pgcontents with Apache License 2.0 | 5 votes |
|
def upgrade():
### commands auto generated by Alembic - please adjust! ###
op.create_table('users',
sa.Column('id', sa.Unicode(length=30), nullable=False),
sa.PrimaryKeyConstraint('id')
)
op.create_table('directories',
sa.Column('user_id', sa.Unicode(length=30), nullable=False),
sa.Column('name', sa.Unicode(length=70), nullable=False),
sa.Column('parent_user_id', sa.Unicode(length=30), nullable=True),
sa.Column('parent_name', sa.Unicode(length=70), nullable=True),
sa.CheckConstraint(u"left(name, 1) = '/'", name=u'directories_startwith_slash'),
sa.CheckConstraint(u"length(regexp_replace(name, '[^/]+', '', 'g')) - 1= length(regexp_replace(parent_name, '[^/]+', '', 'g'))", name=u'directories_slash_count'),
sa.CheckConstraint(u"right(name, 1) = '/'", name=u'directories_endwith_slash'),
sa.CheckConstraint(u'(parent_name IS NULL AND parent_user_id IS NULL) OR (parent_name IS NOT NULL AND parent_user_id IS NOT NULL)', name=u'directories_null_user_id_match'),
sa.CheckConstraint(u'position(parent_name in name) != 0', name=u'directories_parent_name_prefix'),
sa.CheckConstraint(u'user_id = parent_user_id', name=u'directories_match_user_id'),
sa.ForeignKeyConstraint(['parent_user_id', 'parent_name'], [u'directories.user_id', u'directories.name'], ),
sa.ForeignKeyConstraint(['user_id'], [u'users.id'], ),
sa.PrimaryKeyConstraint('user_id', 'name')
)
op.create_table('files',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('name', sa.Unicode(length=40), nullable=False),
sa.Column('user_id', sa.Unicode(length=30), nullable=False),
sa.Column('parent_name', sa.Unicode(length=70), nullable=False),
sa.Column('content', sa.LargeBinary(length=100000), nullable=False),
sa.Column('created_at', sa.DateTime(), nullable=False),
sa.ForeignKeyConstraint(['user_id', 'parent_name'], [u'directories.user_id', u'directories.name'], ),
sa.ForeignKeyConstraint(['user_id'], [u'users.id'], ),
sa.PrimaryKeyConstraint('id')
)
op.create_table('checkpoints',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('file_id', sa.Integer(), nullable=False),
sa.Column('created_at', sa.DateTime(), nullable=False),
sa.ForeignKeyConstraint(['file_id'], [u'files.id'], onupdate=u'CASCADE', ondelete=u'CASCADE'),
sa.PrimaryKeyConstraint('id')
)
### end Alembic commands ###
Example #21
| Source File: test_types.py From sqlalchemy with MIT License | 5 votes |
|
def test_python_type(self):
eq_(types.Integer().python_type, int)
eq_(types.Numeric().python_type, decimal.Decimal)
eq_(types.Numeric(asdecimal=False).python_type, float)
eq_(types.LargeBinary().python_type, util.binary_type)
eq_(types.Float().python_type, float)
eq_(types.Interval().python_type, datetime.timedelta)
eq_(types.Date().python_type, datetime.date)
eq_(types.DateTime().python_type, datetime.datetime)
eq_(types.String().python_type, str)
eq_(types.Unicode().python_type, util.text_type)
eq_(types.Enum("one", "two", "three").python_type, str)
assert_raises(
NotImplementedError, lambda: types.TypeEngine().python_type
)
Example #22
| Source File: test_types.py From sqlalchemy with MIT License | 5 votes |
|
def test_literal_roundtrip(self, connection):
compiled = select([cast(literal(util.b("foo")), LargeBinary)]).compile(
dialect=testing.db.dialect, compile_kwargs={"literal_binds": True}
)
result = connection.execute(compiled)
eq_(result.scalar(), util.b("foo"))
Example #23
| Source File: test_types.py From sqlalchemy with MIT License | 5 votes |
|
def test_bind_processor_no_dbapi(self):
b = LargeBinary()
eq_(b.bind_processor(default.DefaultDialect()), None)
Example #24
| Source File: test_operators.py From sqlalchemy with MIT License | 5 votes |
|
def test_in_29(self):
a, b, c = (
column("a", Integer),
column("b", String),
column("c", LargeBinary),
)
t1 = tuple_(a, b, c)
expr = t1.in_([(3, "hi", "there"), (4, "Q", "P")])
self.assert_compile(
expr,
"(a, b, c) IN ([POSTCOMPILE_param_1])",
checkparams={"param_1": [(3, "hi", "there"), (4, "Q", "P")]},
)
Example #25
| Source File: test_operators.py From sqlalchemy with MIT License | 5 votes |
|
def test_type_coercion_on_eq(self):
a, b, c = (
column("a", Integer),
column("b", String),
column("c", LargeBinary),
)
t1 = tuple_(a, b, c)
expr = t1 == (3, "hi", "there")
self._assert_types([bind.type for bind in expr.right.element.clauses])
Example #26
| Source File: test_operators.py From sqlalchemy with MIT License | 5 votes |
|
def test_type_coercion_on_in(self):
a, b, c = (
column("a", Integer),
column("b", String),
column("c", LargeBinary),
)
t1 = tuple_(a, b, c)
expr = t1.in_([(3, "hi", "there"), (4, "Q", "P")])
eq_(len(expr.right.value), 2)
self._assert_types(expr.right._expanding_in_types)
Example #27
| Source File: test_unitofwork.py From sqlalchemy with MIT License | 5 votes |
|
def define_tables(cls, metadata):
Table(
"t1",
metadata,
Column(
"id",
sa.Integer,
primary_key=True,
test_needs_autoincrement=True,
),
Column("data", sa.LargeBinary),
)
Example #28
| Source File: sqlutil.py From clgen with GNU General Public License v3.0 | 5 votes |
|
def LargeBinary():
"""Return a fixed size binary array column type.
Returns:
A column type.
"""
return sql.LargeBinary().with_variant(sql.LargeBinary(2 ** 31), "mysql")
Example #29
| Source File: c63a27054f08_add_snapshots_to_run_storage.py From dagster with Apache License 2.0 | 5 votes |
|
def upgrade():
if not has_table('snapshots'):
op.create_table(
'snapshots',
sa.Column('id', sa.Integer, primary_key=True, autoincrement=True, nullable=False),
sa.Column('snapshot_id', sa.String(255), unique=True, nullable=False),
sa.Column('snapshot_body', sa.LargeBinary, nullable=False),
sa.Column('snapshot_type', sa.String(63), nullable=False),
)
if not has_column('runs', 'snapshot_id'):
# Sqlite does not support adding foreign keys to existing
# tables, so we are forced to fallback on this witchcraft.
# See https://alembic.sqlalchemy.org/en/latest/batch.html#dealing-with-referencing-foreign-keys
# for additional context
with op.batch_alter_table('runs') as batch_op:
batch_op.execute('PRAGMA foreign_keys = OFF;')
batch_op.add_column(
sa.Column(
'snapshot_id',
sa.String(255),
sa.ForeignKey(
'snapshots.snapshot_id', name='fk_runs_snapshot_id_snapshots_snapshot_id'
),
),
)
op.execute('PRAGMA foreign_keys = ON;')
Example #30
| Source File: 51dddd79aa21_add_logs_column_on_kernel_table.py From backend.ai-manager with GNU Lesser General Public License v3.0 | 5 votes |
|
def upgrade():
op.add_column('kernels', sa.Column('container_log', sa.LargeBinary(), nullable=True))
