# python3

# Copyright 2019 Google LLC

#

# Licensed 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

#

# https://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

"""Model for interacting with Spanner index column schema table."""

import typing

from typing import Optional

from spanner_orm import field

from spanner_orm.admin import schema

class IndexColumnSchema(schema.InformationSchema):

"""Model for interacting with Spanner index column schema table."""

__table__ = 'information_schema.index_columns'

table_catalog = typing.cast(str, field.Field(field.String, primary_key=True))

table_schema = typing.cast(str, field.Field(field.String, primary_key=True))

table_name = typing.cast(str, field.Field(field.String, primary_key=True))

index_name = typing.cast(str, field.Field(field.String, primary_key=True))

column_name = typing.cast(str, field.Field(field.String, primary_key=True))

ordinal_position = typing.cast(Optional[int],

field.Field(field.Integer, nullable=True))

column_ordering = typing.cast(Optional[str],

field.Field(field.String, nullable=True))

is_nullable = typing.cast(str, field.Field(field.String))

spanner_type = typing.cast(str, field.Field(field.String))