Question : In PostgreSQL 10.0, I have a big table with two columns: CREATE TABLE xs ( ts timestamp with […]
Quick nearest neighbor search in the 150-dimensional space
Question : I want to create a database using any of the possible RDBMS. It will have a table with […]
Mysql find 10 nearest point from given lat/long per type?
Question : I have a database given with 3 different types of locations A, B and C. These points have […]
Postgres: Disable “similarity” column output on “SELECT SIMILARITY”?
Question : I’ve tried disabling similarity column output on SELECT SIMILARITY but still cannot. Below query will generate a column […]
Improve performance of this query finding nearby locations
Question : I am trying to execute this SQL, but the query is really slow (almost 2 hours), It’s actually […]
Nearest neighbours (KNN) from a selected point
Question : I have a small point dataset, I perform the following I get the 10 KNN from the coordinate. […]