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98 lines
1.9 KiB
Plaintext
98 lines
1.9 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 '{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]'::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]'::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]'::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]'::vector::halfvec(2);
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ERROR: expected 2 dimensions, not 3
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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 '[65520]'::vector::halfvec;
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ERROR: infinite value not allowed in 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 '{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 '[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 '{}/16001'::sparsevec::vector;
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ERROR: vector cannot have more than 16000 dimensions
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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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