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Asked: 2026-05-31T10:26:08+00:00

I was just wondering which is faster: Constructing a wkt polygon using SQLGeography’s STUnion

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I was just wondering which is faster:

  1. Constructing a wkt polygon using SQLGeography’s STUnion method.
  2. Constructing a wkt polygon using the STUnion method built into MS SQL Server.

I only ask because I wanted to be sure. I’m assuming that if I went with 2, querying and constantly updating the database would increase the amount of time it takes to process/create the data. This would be through one connection so there wouldn’t be a need to reconnect every time something needed to be added.

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1 Answer

  1. Editorial Team

    I did some benchmarks and constructing the polygons using the STUnion method in C# was at least twice as fast.

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