|  | @@ -18,7 +18,7 @@ depends_on = None
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				|  |  |  
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				|  |  |  def upgrade():
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				|  |  |      op.create_table('factory_location',
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				|  |  | -    sa.Column('factory_id', sa.BigInteger(), nullable=False),
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				|  |  | +    sa.Column('factory_id', sa.Integer(), nullable=False),
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				|  |  |      sa.Column('region_id', sa.Integer(), nullable=False),
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				|  |  |      sa.Column('from_date_time', sa.DateTime(), nullable=True),
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				|  |  |      sa.Column('until_date_time', sa.DateTime(), nullable=True),
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