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Added angular_distance function

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Andrew Kane
2023-09-01 19:45:59 -07:00
parent 0b0e542ce6
commit 1a0b9d81ce
6 changed files with 108 additions and 0 deletions
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44
test/expected/functions.out
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@@ -152,6 +152,50 @@ SELECT l1_distance('[3e38]', '[-3e38]');
Infinity
(1 row)
SELECT angular_distance('[1,2]', '[2,4]');
angular_distance
------------------
0
(1 row)
SELECT angular_distance('[1,2]', '[0,0]');
angular_distance
------------------
NaN
(1 row)
SELECT angular_distance('[1,1]', '[1,1]');
angular_distance
------------------
0
(1 row)
SELECT angular_distance('[1,1]', '[-1,-1]');
angular_distance
------------------
1
(1 row)
SELECT angular_distance('[1,2]', '[3]');
ERROR: different vector dimensions 2 and 1
SELECT angular_distance('[1,1]', '[1.1,1.1]');
angular_distance
------------------
0
(1 row)
SELECT angular_distance('[1,1]', '[-1.1,-1.1]');
angular_distance
------------------
1
(1 row)
SELECT angular_distance('[3e38]', '[3e38]');
angular_distance
------------------
NaN
(1 row)
SELECT avg(v) FROM unnest(ARRAY['[1,2,3]'::vector, '[3,5,7]']) v;
avg
-----------