chatdesk-ui/postgres_15.8.1.044/nix/tests/expected/z_17_pgvector.out

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/*
This test excludes indexes shipped with pgvector because orioledb doesn't support them yet
*/
create schema v;
create table v.items(
id serial primary key,
embedding vector(3),
half_embedding halfvec(3),
bit_embedding bit(3),
sparse_embedding sparsevec(3)
);
-- Populate some records
insert into v.items(
embedding,
half_embedding,
bit_embedding,
sparse_embedding
)
values
('[1,2,3]', '[1,2,3]', '101', '{1:4}/3'),
('[2,3,4]', '[2,3,4]', '010', '{1:7,3:0}/3');
-- Test op types
select
*
from
v.items
order by
embedding <-> '[2,3,5]',
embedding <=> '[2,3,5]',
embedding <+> '[2,3,5]',
embedding <#> '[2,3,5]',
half_embedding <-> '[2,3,5]',
half_embedding <=> '[2,3,5]',
half_embedding <+> '[2,3,5]',
half_embedding <#> '[2,3,5]',
sparse_embedding <-> '{2:4,3:1}/3',
sparse_embedding <=> '{2:4,3:1}/3',
sparse_embedding <+> '{2:4,3:1}/3',
sparse_embedding <#> '{2:4,3:1}/3',
bit_embedding <~> '011';
id | embedding | half_embedding | bit_embedding | sparse_embedding
----+-----------+----------------+---------------+------------------
2 | [2,3,4] | [2,3,4] | 010 | {1:7}/3
1 | [1,2,3] | [1,2,3] | 101 | {1:4}/3
(2 rows)
select
avg(embedding),
avg(half_embedding)
from
v.items;
avg | avg
---------------+---------------
[1.5,2.5,3.5] | [1.5,2.5,3.5]
(1 row)
-- Cleanup
drop schema v cascade;
NOTICE: drop cascades to table v.items