Geo distance search with my sql presentation

Geo/Spatial Search with MySQL Alexander Rubin Senior Consultant, MySQL AB

Why Geo Search? ,[object Object],[object Object],[object Object],[object Object]

Common Tasks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Latitude Longitude Hotel Name

Distance between 2 points The Haversine Formula For two points on a sphere (of radius R) with latitudes φ1 and φ2, latitude separation Δφ = φ1 − φ2, and longitude separation Δλ the distance d between the two points:

The Haversine Formula in MySQL ,[object Object],[object Object],[object Object],[object Object],angles need to be in radians

MySQL Query: Find Nearby Hotels ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Lat can be negative!

Find Nearby Hotels: Results ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

MySQL Explain query ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How to speed up the query ,[object Object],[object Object],10 Miles

How to calculate needed coordinates ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Modify the query ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Stored procedure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Stored Procedure, Contd ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Speed comparison ,[object Object],[object Object],[object Object],[object Object],[object Object]

Stored Procedure: Explain Plan ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Geo Search with Sphinx ,[object Object],[object Object],[object Object],[object Object]

Speed comparison of all solutions

Different Type of Coordinates ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Converting between coordinates ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Geo Search with Full Text search ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Geo Search with Full Text search: example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Geo Search with Full Text search: Explain ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DEMO ,[object Object],[object Object],[object Object],[object Object]

Using MySQL Spatial Extension ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Zipcode with Spatial Extension ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Spatial Search: Distance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Spatial Search Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Geo distance search with my sql presentation

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Editor's Notes