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Spatial Join Slow and Returns Inverted Results Using KML or SQL Spatial Data Imported from Shapefile or GeoJSON


發佈時間 : 06 Aug 2018
上次修改日期 : 17 Oct 2022

問題

When using a data source based on a Shapefile or GeoJSON file that was imported into SQL Server, visualizations based on the resulting geographies may appear inverted, and the join slower than expected.

環境

  • Tableau Desktop
  • Spatial Joins
  • Shapefiles 
  • GeoJSON 
  • SQL Server

原因

The vertex order convention of Shapefiles is the reverse of the vertex order specified by SQL Server. 
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