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                        - """add table dataset_permissions
 - 
 - Revision ID: 7e6a8693e07a
 - Revises: 4ff534e1eb11
 - Create Date: 2024-06-25 03:20:46.012193
 - 
 - """
 - import sqlalchemy as sa
 - from alembic import op
 - 
 - import models.types
 - 
 - # revision identifiers, used by Alembic.
 - revision = '7e6a8693e07a'
 - down_revision = 'b2602e131636'
 - branch_labels = None
 - depends_on = None
 - 
 - 
 - def upgrade():
 -     # ### commands auto generated by Alembic - please adjust! ###
 -     op.create_table('dataset_permissions',
 -     sa.Column('id', models.types.StringUUID(), server_default=sa.text('uuid_generate_v4()'), nullable=False),
 -     sa.Column('dataset_id', models.types.StringUUID(), nullable=False),
 -     sa.Column('account_id', models.types.StringUUID(), nullable=False),
 -     sa.Column('has_permission', sa.Boolean(), server_default=sa.text('true'), nullable=False),
 -     sa.Column('created_at', sa.DateTime(), server_default=sa.text('CURRENT_TIMESTAMP(0)'), nullable=False),
 -     sa.PrimaryKeyConstraint('id', name='dataset_permission_pkey')
 -     )
 -     with op.batch_alter_table('dataset_permissions', schema=None) as batch_op:
 -         batch_op.create_index('idx_dataset_permissions_account_id', ['account_id'], unique=False)
 -         batch_op.create_index('idx_dataset_permissions_dataset_id', ['dataset_id'], unique=False)
 -     # ### end Alembic commands ###
 - 
 - 
 - def downgrade():
 -     # ### commands auto generated by Alembic - please adjust! ###
 -     with op.batch_alter_table('dataset_permissions', schema=None) as batch_op:
 -         batch_op.drop_index('idx_dataset_permissions_dataset_id')
 -         batch_op.drop_index('idx_dataset_permissions_account_id')
 -     op.drop_table('dataset_permissions')
 -     # ### end Alembic commands ###
 
 
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