superset 2019-11-01_09-18_c2acd2cf3df2_alter_type_of_dbs_encrypted_extra 源码
superset 2019-11-01_09-18_c2acd2cf3df2_alter_type_of_dbs_encrypted_extra 代码
文件路径：/superset/migrations/versions/2019-11-01_09-18_c2acd2cf3df2_alter_type_of_dbs_encrypted_extra.py
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# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
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"""alter type of dbs encrypted_extra
Revision ID: c2acd2cf3df2
Revises: cca2f5d568c8
Create Date: 2019-11-01 09:18:36.953603
"""
import sqlalchemy as sa
from alembic import op
from sqlalchemy_utils import EncryptedType
# revision identifiers, used by Alembic.
revision = "c2acd2cf3df2"
down_revision = "cca2f5d568c8"
def upgrade():
with op.batch_alter_table("dbs") as batch_op:
try:
# Postgres migration
batch_op.alter_column(
"encrypted_extra",
existing_type=sa.Text(),
type_=sa.LargeBinary(),
postgresql_using="encrypted_extra::bytea",
existing_nullable=True,
)
except TypeError:
# non-Postgres migration
batch_op.alter_column(
"dbs",
"encrypted_extra",
existing_type=sa.Text(),
type_=sa.LargeBinary(),
existing_nullable=True,
)
def downgrade():
with op.batch_alter_table("dbs") as batch_op:
batch_op.alter_column(
"encrypted_extra",
existing_type=sa.LargeBinary(),
type_=sa.Text(),
existing_nullable=True,
)
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