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what srid google map use to calculate distance

Medium Priority
Last Modified: 2012-05-06
I'm using postGIS and EPSG 32661 to calculate distance between 2 point from google map, but the result is not matched.
Could you tell me what srid google map use to calculate distance
Thank you in advance.
Watch Question

Use 4326 as SRID for your data....
To do distance calculations, use distance_sphere (fast, less accurate) or distance_spheroid (slow, very accurate).

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