mirror of
https://github.com/pgvector/pgvector.git
synced 2026-06-06 14:01:31 +08:00
27 lines
865 B
SQL
27 lines
865 B
SQL
SELECT '[1,2,3]'::vector + '[4,5,6]';
|
|
SELECT '[1,2,3]'::vector - '[4,5,6]';
|
|
|
|
SELECT vector_dims('[1,2,3]');
|
|
|
|
SELECT round(vector_norm('[1,1]')::numeric, 5);
|
|
SELECT vector_norm('[3,4]');
|
|
SELECT vector_norm('[0,1]');
|
|
|
|
SELECT l2_distance('[0,0]', '[3,4]');
|
|
SELECT l2_distance('[0,0]', '[0,1]');
|
|
SELECT l2_distance('[1,2]', '[3]');
|
|
|
|
SELECT inner_product('[1,2]', '[3,4]');
|
|
SELECT inner_product('[1,2]', '[3]');
|
|
|
|
SELECT cosine_distance('[1,2]', '[2,4]');
|
|
SELECT cosine_distance('[1,2]', '[0,0]');
|
|
SELECT cosine_distance('[1,1]', '[1,1]');
|
|
SELECT cosine_distance('[1,1]', '[-1,-1]');
|
|
SELECT cosine_distance('[1,2]', '[3]');
|
|
|
|
SELECT avg(v) FROM unnest(ARRAY['[1,2,3]'::vector, '[3,5,7]']) v;
|
|
SELECT avg(v) FROM unnest(ARRAY['[1,2,3]'::vector, '[3,5,7]', NULL]) v;
|
|
SELECT avg(v) FROM unnest(ARRAY[]::vector[]) v;
|
|
SELECT avg(v) FROM unnest(ARRAY['[1,2]'::vector, '[3]']) v;
|