mirror of
https://github.com/pgvector/pgvector.git
synced 2026-06-06 05:51:21 +08:00
45 lines
933 B
Plaintext
45 lines
933 B
Plaintext
SET client_min_messages = warning;
|
|
CREATE EXTENSION IF NOT EXISTS vector;
|
|
SELECT ARRAY[1,2,3]::vector;
|
|
array
|
|
---------
|
|
[1,2,3]
|
|
(1 row)
|
|
|
|
SELECT ARRAY[1.0,2.0,3.0]::vector;
|
|
array
|
|
---------
|
|
[1,2,3]
|
|
(1 row)
|
|
|
|
SELECT ARRAY[1,2,3]::float4[]::vector;
|
|
array
|
|
---------
|
|
[1,2,3]
|
|
(1 row)
|
|
|
|
SELECT ARRAY[1,2,3]::float8[]::vector;
|
|
array
|
|
---------
|
|
[1,2,3]
|
|
(1 row)
|
|
|
|
SELECT '{NULL}'::real[]::vector;
|
|
ERROR: array must not containing NULLs
|
|
SELECT '{NaN}'::real[]::vector;
|
|
ERROR: NaN not allowed in vector
|
|
SELECT '{Infinity}'::real[]::vector;
|
|
ERROR: infinite value not allowed in vector
|
|
SELECT '{-Infinity}'::real[]::vector;
|
|
ERROR: infinite value not allowed in vector
|
|
SELECT '{}'::real[]::vector;
|
|
ERROR: vector must have at least 1 dimension
|
|
SELECT '[1,2,3]'::vector::real[];
|
|
float4
|
|
---------
|
|
{1,2,3}
|
|
(1 row)
|
|
|
|
SELECT array_agg(n)::vector FROM generate_series(1, 1025) n;
|
|
ERROR: vector cannot have more than 1024 dimensions
|