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44 lines
1.1 KiB
Plaintext
44 lines
1.1 KiB
Plaintext
SET enable_seqscan = off;
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CREATE TABLE t (val sparsevec(3));
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INSERT INTO t (val) VALUES ('{}/3'), ('{0:1,1:2,2:3}/3'), ('{0:1,1:1,2:1}/3'), (NULL);
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CREATE INDEX ON t USING hnsw (val sparsevec_l2_ops);
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INSERT INTO t (val) VALUES ('{0:1,1:2,2:4}/3');
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SELECT * FROM t ORDER BY val <-> '{0:3,1:3,2:3}/3';
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val
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-----------------
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{0:1,1:2,2:3}/3
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{0:1,1:2,2:4}/3
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{0:1,1:1,2:1}/3
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{}/3
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(4 rows)
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SELECT COUNT(*) FROM (SELECT * FROM t ORDER BY val <-> (SELECT NULL::sparsevec)) t2;
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count
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-------
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4
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(1 row)
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SELECT COUNT(*) FROM t;
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count
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-------
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5
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(1 row)
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TRUNCATE t;
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SELECT * FROM t ORDER BY val <-> '{0:3,1:3,2:3}/3';
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val
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-----
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(0 rows)
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DROP TABLE t;
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-- TODO move
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CREATE TABLE t (val sparsevec(1001));
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INSERT INTO t (val) VALUES (array_fill(1, ARRAY[1001])::vector::sparsevec);
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CREATE INDEX ON t USING hnsw (val sparsevec_l2_ops);
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ERROR: sparsevec cannot have more than 1000 non-zero elements for hnsw index
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TRUNCATE t;
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CREATE INDEX ON t USING hnsw (val sparsevec_l2_ops);
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INSERT INTO t (val) VALUES (array_fill(1, ARRAY[1001])::vector::sparsevec);
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ERROR: sparsevec cannot have more than 1000 non-zero elements for hnsw index
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DROP TABLE t;
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