Edmonton Catholic School Board Ward Boundaries: Current, Historical, and Future

This dataset provides the Current, Historical, and Future geometric polygons of the Edmonton Catholic Separate School Division ward boundaries and the associated board trustee in office.

Use the API to extract just the rows that you're interested in, for example:

- Whatever the "future" ward boundaries are (if any): https://data.edmonton.ca/resource/dhek-mfcx.geojson?$where=effdt_type='Future'

- The ward boundaries as they were in 2013: https://data.edmonton.ca/resource/dhek-mfcx.geojson?$where=date_trunc_y(effective_start_date)='2013'

See https://dev.socrata.com/docs/functions.

本数据集涵盖埃德蒙顿天主教独立学区（Edmonton Catholic Separate School Division）选区边界的当前、历史与未来几何多边形，以及对应在职学区董事会受托人的相关信息。

可通过应用程序编程接口（Application Programming Interface，API）提取所需的行数据，示例如下：
- 提取所有“未来”选区边界（若存在）：https://data.edmonton.ca/resource/dhek-mfcx.geojson?$where=effdt_type='Future'
- 提取2013年的选区边界：https://data.edmonton.ca/resource/dhek-mfcx.geojson?$where=date_trunc_y(effective_start_date)='2013'

可参考https://dev.socrata.com/docs/functions 查阅相关函数文档。