[Docs] DoubleArray and FloatingPointArray are missing from generated Python docs

[spenczar]

Describe the bug, including details regarding any error messages, version, and platform.

https://arrow.apache.org/docs/python/api/arrays.html lists the concrete array types available in Pyarrow. But some are missing:

arrow/python/pyarrow/array.pxi

Lines 1870 to 1885 in 205ceb9

	cdef class HalfFloatArray(FloatingPointArray):
	"""
	Concrete class for Arrow arrays of float16 data type.
	"""
	cdef class FloatArray(FloatingPointArray):
	"""
	Concrete class for Arrow arrays of float32 data type.
	"""
	cdef class DoubleArray(FloatingPointArray):
	"""
	Concrete class for Arrow arrays of float64 data type.
	"""

lists the float16/float32/float64 concrete array types, and they don't appear in the generated table, nor do their direct links (eg https://arrow.apache.org/docs/python/generated/pyarrow.DoubleArray.html) work.

Component(s)

Documentation, Python

[spenczar]

It appears to me that this is because those types are not in the big list of exported types in https://github.com/apache/arrow/blob/205ceb99389d2d5060551ebcba17635185c74d9d/python/pyarrow/__init__.py#L200C1-L202. Is that an oversight, or intentional?

[AlenkaF]

Thank you for reporting! I think this is not intentional.
In the PR you could add a comment to generate the preview of the docs: @github-actions crossbow submit preview-docs.