mirror of
https://github.com/pgvector/pgvector.git
synced 2026-06-06 05:51:21 +08:00
3fb05eb847
Co-authored-by: Narek Galstyan <narekg@berkeley.edu> Co-authored-by: Di Qi <di@lantern.dev>
278 lines
5.6 KiB
Plaintext
278 lines
5.6 KiB
Plaintext
SELECT ARRAY[1,2,3]::vector;
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array
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---------
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[1,2,3]
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(1 row)
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SELECT ARRAY[1.0,2.0,3.0]::vector;
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array
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---------
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[1,2,3]
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(1 row)
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SELECT ARRAY[1,2,3]::float4[]::vector;
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array
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---------
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[1,2,3]
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(1 row)
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SELECT ARRAY[1,2,3]::float8[]::vector;
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array
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---------
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[1,2,3]
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(1 row)
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SELECT ARRAY[1,2,3]::numeric[]::vector;
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array
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---------
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[1,2,3]
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(1 row)
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SELECT '[1,2,3]'::vector::real[];
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float4
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---------
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{1,2,3}
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(1 row)
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SELECT '{1,2,3}'::real[]::vector;
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vector
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---------
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[1,2,3]
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(1 row)
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SELECT '{1,2,3}'::real[]::vector(3);
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vector
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---------
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[1,2,3]
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(1 row)
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SELECT '{1,2,3}'::real[]::vector(2);
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ERROR: expected 2 dimensions, not 3
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SELECT '{NULL}'::real[]::vector;
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ERROR: array must not contain nulls
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SELECT '{NaN}'::real[]::vector;
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ERROR: NaN not allowed in vector
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SELECT '{Infinity}'::real[]::vector;
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ERROR: infinite value not allowed in vector
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SELECT '{-Infinity}'::real[]::vector;
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ERROR: infinite value not allowed in vector
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SELECT '{}'::real[]::vector;
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ERROR: vector must have at least 1 dimension
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SELECT '{{1}}'::real[]::vector;
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ERROR: array must be 1-D
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SELECT '{1,2,3}'::double precision[]::vector;
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vector
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---------
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[1,2,3]
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(1 row)
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SELECT '{1,2,3}'::double precision[]::vector(3);
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vector
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---------
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[1,2,3]
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(1 row)
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SELECT '{1,2,3}'::double precision[]::vector(2);
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ERROR: expected 2 dimensions, not 3
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SELECT '{4e38,-4e38}'::double precision[]::vector;
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ERROR: infinite value not allowed in vector
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SELECT '{1e-46,-1e-46}'::double precision[]::vector;
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vector
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--------
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[0,-0]
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(1 row)
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SELECT '[1,2,3]'::vector::halfvec;
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halfvec
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---------
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[1,2,3]
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(1 row)
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SELECT '[1,2,3]'::vector::halfvec(3);
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halfvec
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---------
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[1,2,3]
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(1 row)
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SELECT '[1,2,3]'::vector::halfvec(2);
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ERROR: expected 2 dimensions, not 3
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SELECT '[65520]'::vector::halfvec;
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ERROR: "65520" is out of range for type halfvec
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SELECT '[1e-8]'::vector::halfvec;
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halfvec
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---------
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[0]
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(1 row)
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SELECT '[1,2,3]'::halfvec::vector;
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vector
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---------
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[1,2,3]
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(1 row)
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SELECT '[1,2,3]'::halfvec::vector(3);
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vector
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---------
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[1,2,3]
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(1 row)
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SELECT '[1,2,3]'::halfvec::vector(2);
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ERROR: expected 2 dimensions, not 3
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SELECT '{1,2,3}'::real[]::halfvec;
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halfvec
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---------
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[1,2,3]
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(1 row)
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SELECT '{1,2,3}'::real[]::halfvec(3);
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halfvec
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---------
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[1,2,3]
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(1 row)
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SELECT '{1,2,3}'::real[]::halfvec(2);
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ERROR: expected 2 dimensions, not 3
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SELECT '{65520,-65520}'::real[]::halfvec;
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ERROR: "65520" is out of range for type halfvec
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SELECT '{1e-8,-1e-8}'::real[]::halfvec;
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halfvec
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---------
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[0,-0]
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(1 row)
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SELECT '[0,1.5,0,3.5,0]'::vector::sparsevec;
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sparsevec
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-----------------
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{2:1.5,4:3.5}/5
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(1 row)
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SELECT '[0,1.5,0,3.5,0]'::vector::sparsevec(5);
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sparsevec
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-----------------
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{2:1.5,4:3.5}/5
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(1 row)
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SELECT '[0,1.5,0,3.5,0]'::vector::sparsevec(4);
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ERROR: expected 4 dimensions, not 5
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SELECT '{2:1.5,4:3.5}/5'::sparsevec::vector;
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vector
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-----------------
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[0,1.5,0,3.5,0]
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(1 row)
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SELECT '{2:1.5,4:3.5}/5'::sparsevec::vector(5);
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vector
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-----------------
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[0,1.5,0,3.5,0]
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(1 row)
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SELECT '{2:1.5,4:3.5}/5'::sparsevec::vector(4);
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ERROR: expected 4 dimensions, not 5
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SELECT '{}/16001'::sparsevec::vector;
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ERROR: vector cannot have more than 16000 dimensions
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SELECT '[0,1.5,0,3.5,0]'::halfvec::sparsevec;
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sparsevec
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-----------------
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{2:1.5,4:3.5}/5
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(1 row)
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SELECT '[0,1.5,0,3.5,0]'::halfvec::sparsevec(5);
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sparsevec
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-----------------
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{2:1.5,4:3.5}/5
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(1 row)
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SELECT '[0,1.5,0,3.5,0]'::halfvec::sparsevec(4);
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ERROR: expected 4 dimensions, not 5
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SELECT '{2:1.5,4:3.5}/5'::sparsevec::halfvec;
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halfvec
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-----------------
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[0,1.5,0,3.5,0]
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(1 row)
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SELECT '{2:1.5,4:3.5}/5'::sparsevec::halfvec(5);
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halfvec
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-----------------
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[0,1.5,0,3.5,0]
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(1 row)
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SELECT '{2:1.5,4:3.5}/5'::sparsevec::halfvec(4);
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ERROR: expected 4 dimensions, not 5
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SELECT '{}/16001'::sparsevec::halfvec;
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ERROR: halfvec cannot have more than 16000 dimensions
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SELECT '{1:65520}/1'::sparsevec::halfvec;
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ERROR: "65520" is out of range for type halfvec
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SELECT '{1:1e-8}/1'::sparsevec::halfvec;
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halfvec
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---------
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[0]
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(1 row)
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SELECT ARRAY[1,0,2,0,3,0]::sparsevec;
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array
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-----------------
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{1:1,3:2,5:3}/6
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(1 row)
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SELECT ARRAY[1.0,0.0,2.0,0.0,3.0,0.0]::sparsevec;
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array
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-----------------
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{1:1,3:2,5:3}/6
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(1 row)
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SELECT ARRAY[1,0,2,0,3,0]::float4[]::sparsevec;
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array
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-----------------
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{1:1,3:2,5:3}/6
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(1 row)
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SELECT ARRAY[1,0,2,0,3,0]::float8[]::sparsevec;
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array
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-----------------
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{1:1,3:2,5:3}/6
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(1 row)
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SELECT ARRAY[1,0,2,0,3,0]::numeric[]::sparsevec;
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array
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-----------------
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{1:1,3:2,5:3}/6
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(1 row)
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SELECT '{1,0,2,0,3,0}'::real[]::sparsevec;
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sparsevec
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-----------------
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{1:1,3:2,5:3}/6
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(1 row)
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SELECT '{1,0,2,0,3,0}'::real[]::sparsevec(6);
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sparsevec
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-----------------
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{1:1,3:2,5:3}/6
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(1 row)
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SELECT '{1,0,2,0,3,0}'::real[]::sparsevec(5);
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ERROR: expected 5 dimensions, not 6
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SELECT '{NULL}'::real[]::sparsevec;
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ERROR: array must not contain nulls
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SELECT '{NaN}'::real[]::sparsevec;
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ERROR: NaN not allowed in sparsevec
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SELECT '{Infinity}'::real[]::sparsevec;
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ERROR: infinite value not allowed in sparsevec
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SELECT '{-Infinity}'::real[]::sparsevec;
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ERROR: infinite value not allowed in sparsevec
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SELECT '{}'::real[]::sparsevec;
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ERROR: sparsevec must have at least 1 dimension
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SELECT '{{1}}'::real[]::sparsevec;
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ERROR: array must be 1-D
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SELECT array_agg(n)::vector FROM generate_series(1, 16001) n;
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ERROR: vector cannot have more than 16000 dimensions
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SELECT array_to_vector(array_agg(n), 16001, false) FROM generate_series(1, 16001) n;
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ERROR: vector cannot have more than 16000 dimensions
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-- ensure no error
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SELECT ARRAY[1,2,3] = ARRAY[1,2,3];
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?column?
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----------
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t
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(1 row)
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