mirror of
https://github.com/pgvector/pgvector.git
synced 2026-06-06 14:01:31 +08:00
70 lines
2.5 KiB
SQL
70 lines
2.5 KiB
SQL
SELECT '[1,2,3]'::vector + '[4,5,6]';
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SELECT '[3e38]'::vector + '[3e38]';
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SELECT '[1,2,3]'::vector - '[4,5,6]';
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SELECT '[-3e38]'::vector - '[3e38]';
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SELECT '[1,2,3]'::vector * '[4,5,6]';
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SELECT '[1e37]'::vector * '[1e37]';
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SELECT '[1e-37]'::vector * '[1e-37]';
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SELECT '[1,2,3]'::vector = '[1,2,3]';
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SELECT '[1,2,3]'::vector = '[1,2]';
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SELECT vector_cmp('[1,2,3]', '[1,2,3]');
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SELECT vector_cmp('[1,2,3]', '[0,0,0]');
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SELECT vector_cmp('[0,0,0]', '[1,2,3]');
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SELECT vector_cmp('[1,2]', '[1,2,3]');
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SELECT vector_cmp('[1,2,3]', '[1,2]');
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SELECT vector_cmp('[1,2]', '[2,3,4]');
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SELECT vector_cmp('[2,3]', '[1,2,3]');
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SELECT vector_dims('[1,2,3]');
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SELECT round(vector_norm('[1,1]')::numeric, 5);
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SELECT vector_norm('[3,4]');
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SELECT vector_norm('[0,1]');
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SELECT vector_norm('[3e37,4e37]')::real;
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SELECT l2_distance('[0,0]', '[3,4]');
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SELECT l2_distance('[0,0]', '[0,1]');
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SELECT l2_distance('[1,2]', '[3]');
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SELECT l2_distance('[3e38]', '[-3e38]');
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SELECT inner_product('[1,2]', '[3,4]');
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SELECT inner_product('[1,2]', '[3]');
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SELECT inner_product('[3e38]', '[3e38]');
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SELECT cosine_distance('[1,2]', '[2,4]');
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SELECT cosine_distance('[1,2]', '[0,0]');
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SELECT cosine_distance('[1,1]', '[1,1]');
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SELECT cosine_distance('[1,0]', '[0,2]');
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SELECT cosine_distance('[1,1]', '[-1,-1]');
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SELECT cosine_distance('[1,2]', '[3]');
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SELECT cosine_distance('[1,1]', '[1.1,1.1]');
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SELECT cosine_distance('[1,1]', '[-1.1,-1.1]');
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SELECT cosine_distance('[3e38]', '[3e38]');
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SELECT l1_distance('[0,0]', '[3,4]');
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SELECT l1_distance('[0,0]', '[0,1]');
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SELECT l1_distance('[1,2]', '[3]');
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SELECT l1_distance('[3e38]', '[-3e38]');
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SELECT subvector('[1,2,3,4,5]', 1, 3);
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SELECT subvector('[1,2,3,4,5]', 3, 2);
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SELECT subvector('[1,2,3,4,5]', -1, 3);
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SELECT subvector('[1,2,3,4,5]', 3, 9);
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SELECT subvector('[1,2,3,4,5]', 1, 0);
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SELECT subvector('[1,2,3,4,5]', -1, 2);
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SELECT avg(v) FROM unnest(ARRAY['[1,2,3]'::vector, '[3,5,7]']) v;
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SELECT avg(v) FROM unnest(ARRAY['[1,2,3]'::vector, '[3,5,7]', NULL]) v;
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SELECT avg(v) FROM unnest(ARRAY[]::vector[]) v;
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SELECT avg(v) FROM unnest(ARRAY['[1,2]'::vector, '[3]']) v;
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SELECT avg(v) FROM unnest(ARRAY['[3e38]'::vector, '[3e38]']) v;
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SELECT vector_avg(array_agg(n)) FROM generate_series(1, 16002) n;
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SELECT sum(v) FROM unnest(ARRAY['[1,2,3]'::vector, '[3,5,7]']) v;
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SELECT sum(v) FROM unnest(ARRAY['[1,2,3]'::vector, '[3,5,7]', NULL]) v;
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SELECT sum(v) FROM unnest(ARRAY[]::vector[]) v;
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SELECT sum(v) FROM unnest(ARRAY['[1,2]'::vector, '[3]']) v;
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SELECT sum(v) FROM unnest(ARRAY['[3e38]'::vector, '[3e38]']) v;
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