GH-38007: [C++] Add VariableShapeTensor implementation - #38008

Merged

rok merged 73 commits into

apache:mainfrom

Feb 24, 2026

Commits on Feb 24, 2026

Initial commit
rok
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6cae181
Add VariableShapeTensorArray::ToTensor(i)
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caf67d5
:Add ragged_dimensions
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420ba90
Replace ragged_dimensions with uniform_dimensions
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d5af047
Add example for explanation
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fafc2dd
Add uniform_shape parameter
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9600363
Apply suggestions from code review
rok
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jorisvandenbossche
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3ffc016
Post rebase
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0a5fd57
Remove uniform_dimensions, fix python test
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4c64460
lint
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31896f1
uniform_shape values are optional
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eb5f45a
Add scalar test
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421f2da
Create Tensor from scalar
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550e5aa
Move get_tensor logic to cpp
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2f1e7f0
slice buffer with array offset
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54678a8
Update cpp/src/arrow/extension/variable_shape_tensor.h
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pitrou
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a188361
Update cpp/src/arrow/extension/variable_shape_tensor.cc
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pitrou
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f02bfc7
Update cpp/src/arrow/extension/variable_shape_tensor.cc
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pitrou
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e2d83ae
Update cpp/src/arrow/extension/variable_shape_tensor.cc
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pitrou
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c500a18
Update cpp/src/arrow/extension/variable_shape_tensor.cc
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pitrou
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721c9a4
Review feedback
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0400746
Update cpp/src/arrow/extension/variable_shape_tensor.cc
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pitrou
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393c358
Review feedback
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15c1d24
import and uint32->int32
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c8418d9
permutation check
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2c15be2
Remove serialization from cython, lint
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035468c
Review feedback
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476b01a
ndim initializer
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d04e4e7
Test null values
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7bedaf5
Remove one GetTensor code paths, permutation handling
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fd74c9d
Allow arbitrary memory layout
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3f419bd
fix permutation check
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312e24f
lint
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32819c0
lint
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fb796ea
roundtrip strided
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fadeafa
Apply suggestions from code review
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f3a371a
remove array.gettensor, simlify
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e5473a5
work
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67ef05e
Add repr
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49a0bba
Review feedback
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d0f4632
GetTensor->MakeTensor, static
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dc2f383
Better permutations check
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cd21aac
post rebase changes
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6c4420f
work
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2e612cd
ToString new parameter
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c8047d1
Remove Python bindings
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b20d9fd
Review feedback
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8373b64
Use TensorFromJSON
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5b0de2b
lint
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c2d8284
Apply suggestions from code review
rok
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pitrou
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b92a32e
Update cpp/src/arrow/extension/variable_shape_tensor.cc
rok
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pitrou
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08c73c4
fix
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10da7f1
Review feedback
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6bbf8cc
mingw64 issue
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373e29c
refactor ComputeStrides
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2c4b0bd
Change to ComputeStrides
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38189a7
Change ToTensor
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53d40ea
Refactoring ComputeStrides
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6e6b679
Move RoundtripBatch to gtest_util.cc
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ea80008
Post rebase changes
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f4cb7fe
Post rebase changes
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8dfb4a3
post rebase fixes
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e8afc66
review feedback
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438dd29
span
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f0088c0
std::span
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f0d0ebe
some changes
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d8b83e5
permutation equivalency check
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7f200fc
lint
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e49a8a0
some typos, style changes, etc
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96cdfa8
lint
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87e77b5
Factor out SliceTensorBuffer
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ab3edb4
review feedback
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0de39f2
lint
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586f822