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Nest struct fields under their column, carry nulls out of a UDF, build output columns as declared, and give each viewer its own cache files - #11

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Goykhman merged 44 commits into

Goykhman:mainfrom

nelson2005:upstream-pr/nested-fields-nullable-outputs-viewer-caches

Sep 25, 2026

Commits on Sep 19, 2026

Nest a struct column's fields under the column's own name
nelson2005
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5696d6d
Name the type of a unicode or bytes output column
nelson2005
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784d0f0
Build each output column with its declared type and name it on failure
nelson2005
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6ba4c94
Give each viewer its own cache files, and refuse a non-boolean cache option
nelson2005
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7d607f4
Make the read-only view impossible to flip back
nelson2005
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9c165be
Say which column, field and element an error is about, and cut wide types
nelson2005
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f1f5a1b
Say what the docs got wrong about binding, bitmaps, zones, widths and views
nelson2005
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1df2bdd
Declare the pyspark and pandas floors that actually run
nelson2005
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5c3dca9
Admit pyarrow 25
nelson2005
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5d5ee36
Make the suite validate the tree under test and fail when its Spark leg is lost
nelson2005
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0282074
Check struct keys at every depth, and refuse a ready-built array whose fields differ
nelson2005
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9cb1ece
Print a KeyError's message as written, and refuse a batch that names a column twice
nelson2005
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98bc4b8
Say only what holds about flipping a copy, DISABLE_JIT and a negative index
nelson2005
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403e06f
Check a map's struct keys too, leave a malformed pair to pa.array, and align the pandas floors
nelson2005
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d8d3821
Count what the cut-type message leaves out, not the type's full length
nelson2005
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c89b526
Carry nulls out of a UDF through a (data, bitmap) pair
nelson2005
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91dba71
Demote arrays_viewers to the three viewers the adapters use
nelson2005
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0dc5190
Name the nullable output column Nullable, and refuse a passed-through bitmap on a resized column
nelson2005
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e6b2e75
Check a handed-out bitmap against the count it covers, not the batch's rows
nelson2005
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d5cd821
Pass over a row the key check cannot look inside, as pa.array does
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5d91704
Refuse a bitmap that is not an ndarray before reading its dtype
nelson2005
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6083df9
Say which output shapes the declared type's refusals hold for
nelson2005
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bfb4c56
Say what Spark does with a column of another accessor family
nelson2005
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ef8e332

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