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Improved test
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@@ -50,6 +50,18 @@ SELECT cosine_distance('[1,2]', '[0,0]');
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NaN
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(1 row)
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SELECT cosine_distance('[1,1]', '[1,1]');
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cosine_distance
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-----------------
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0
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(1 row)
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SELECT cosine_distance('[1,1]', '[-1,-1]');
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cosine_distance
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-----------------
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2
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(1 row)
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SELECT cosine_distance('[1,2]', '[3]');
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ERROR: different vector dimensions 2 and 1
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SELECT avg(v) FROM unnest(ARRAY['[1,2,3]'::vector, '[3,5,7]']) v;
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