[ARROW-7008] [Python] pyarrow.chunked_array([array]) fails on array with all-None buffers

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.15.0
• Fix Version/s: 0.17.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/23322
• Assignee: Wes McKinney
• Reporter: Uwe Korn
• Created: 28/Oct/19 13:47
• Updated: 11/Jan/23 07:50
• Resolved: 02/Apr/20 17:39

Description

Minimal reproducer:

import pyarrow as pa

pa.chunked_array([pa.array([], type=pa.string()).dictionary_encode().dictionary])

Traceback

(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x20)
  * frame #0: 0x0000000112cd5d0e libarrow.15.dylib`arrow::Status arrow::internal::ValidateVisitor::ValidateOffsets<arrow::BinaryArray const>(arrow::BinaryArray const&) + 94
    frame #1: 0x0000000112cc79a3 libarrow.15.dylib`arrow::Status arrow::VisitArrayInline<arrow::internal::ValidateVisitor>(arrow::Array const&, arrow::internal::ValidateVisitor*) + 915
    frame #2: 0x0000000112cc747d libarrow.15.dylib`arrow::Array::Validate() const + 829
    frame #3: 0x0000000112e3ea19 libarrow.15.dylib`arrow::ChunkedArray::Validate() const + 89
    frame #4: 0x0000000112b8eb7d lib.cpython-37m-darwin.so`__pyx_pw_7pyarrow_3lib_135chunked_array(_object*, _object*, _object*) + 3661

Issue Links

• is related to: ARROW-8339 [C++] Possibly allow null offsets and/or data buffer for BaseBinaryArray for 0-length arrays
• links to: GitHub Pull Request #5745
• links to: GitHub Pull Request #6803