layout: default title: 0.3.0 Release permalink: /release/0.3.0.html

Apache Arrow 0.3.0 (5 May 2017)

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Changelog

Contributors

$ git shortlog -sn apache-arrow-0.2.0..apache-arrow-0.3.0
   119  Wes McKinney
    55  Kouhei Sutou
    18  Uwe L. Korn
    17  Julien Le Dem
     9  Phillip Cloud
     6  Bryan Cutler
     5  Emilio Lahr-Vivaz
     5  Philipp Moritz
     4  Jeff Knupp
     4  Johan Mabille
     4  Max Risuhin
     3  Miki Tebeka
     3  Steven Phillips
     2  Brian Hulette
     2  Jeff Reback
     2  Leif Walsh
     1  Deepak Majeti
     1  Holden Karau
     1  Itai Incze
     1  Julien Lafaye
     1  Nong Li
     1  Tsuyoshi Ozawa
     1  rvernica

New Features and Improvements

ARROW-183 - C++: Add storage type to DecimalType
ARROW-231 - C++: Add typed Resize to PoolBuffer
ARROW-281 - [C++] IPC/RPC support on Win32 platforms
ARROW-316 - Finalize Date type
ARROW-341 - [Python] Making libpyarrow available to third parties
ARROW-452 - [C++/Python] Merge “Feather” file format implementation
ARROW-459 - [C++] Implement IPC round trip for DictionaryArray, dictionaries shared across record batches
ARROW-483 - [C++/Python] Provide access to “custom_metadata” Field attribute in IPC setting
ARROW-491 - [C++] Add FixedWidthBinary type
ARROW-493 - [C++] Allow in-memory array over 2^31 -1 elements but require splitting at IPC / RPC boundaries
ARROW-502 - [C++/Python] Add MemoryPool implementation that logs allocation activity to std::cout
ARROW-510 - Add integration tests for date and time types
ARROW-52 - Set up project blog
ARROW-520 - [C++] Add STL-compliant allocator that hooks into an arrow::MemoryPool
ARROW-528 - [Python] Support _metadata or _common_metadata files when reading Parquet directories
ARROW-534 - [C++] Add IPC tests for date/time types
ARROW-539 - [Python] Support reading Parquet datasets with standard partition directory schemes
ARROW-542 - [Java] Implement dictionaries in stream/file encoding
ARROW-550 - [Format] Add a TensorMessage type
ARROW-552 - [Python] Add scalar value support for Dictionary type
ARROW-557 - [Python] Explicitly opt in to HDFS unit tests
ARROW-563 - C++: Support non-standard gcc version strings
ARROW-566 - Python: Deterministic position of libarrow in manylinux1 wheels
ARROW-568 - [C++] Add default implementations for TypeVisitor, ArrayVisitor methods that return NotImplemented
ARROW-569 - [C++] Set version for *.pc
ARROW-574 - Python: Add support for nested Python lists in Pandas conversion
ARROW-576 - [C++] Complete round trip Union file/stream IPC tests
ARROW-577 - [C++] Refactor StreamWriter and FileWriter to have private implementations
ARROW-578 - [C++] Add CMake option to add custom $CXXFLAGS
ARROW-580 - C++: Also provide jemalloc_X targets if only a static or shared version is found
ARROW-582 - [Java] Add Date/Time Support to JSON File
ARROW-589 - C++: Use system provided shared jemalloc if static is unavailable
ARROW-593 - [C++] Rename ReadableFileInterface to RandomAccessFile
ARROW-598 - [Python] Add support for converting pyarrow.Buffer to a memoryview with zero copy
ARROW-603 - [C++] Add RecordBatch::Validate method that at least checks that schema matches the array metadata
ARROW-605 - [C++] Refactor generic ArrayLoader class, support work for Feather merge
ARROW-606 - [C++] Upgrade to flatbuffers 1.6.0
ARROW-608 - [Format] Days since epoch date type
ARROW-610 - [C++] Win32 compatibility in file.cc
ARROW-612 - [Java] Field toString should show nullable flag status
ARROW-615 - Move ByteArrayReadableSeekableByteChannel to vector.util package
ARROW-616 - [C++] Remove -g flag in release builds
ARROW-618 - [Python] Implement support for DatetimeTZ custom type from pandas
ARROW-620 - [C++] Add date/time support to JSON reader/writer for integration testing
ARROW-621 - [C++] Implement an “inline visitor” template that enables visitor-pattern-like code without virtual function dispatch
ARROW-625 - [C++] Add time unit to TimeType::ToString
ARROW-626 - [Python] Enable pyarrow.BufferReader to read from any Python object implementing the buffer/memoryview protocol
ARROW-631 - [GLib] Import C API (C++ API wrapper) based on GLib from https://github.com/kou/arrow-glib
ARROW-632 - [Python] Add support for FixedWidthBinary type
ARROW-635 - [C++] Add JSON read/write support for FixedWidthBinary
ARROW-637 - [Format] Add time zone metadata to Timestamp type
ARROW-646 - Cache miniconda packages
ARROW-647 - [C++] Don't require Boost static libraries to support CentOS 7
ARROW-648 - [C++] Support multiarch on Debian
ARROW-650 - [GLib] Follow eadableFileInterface -> RnadomAccessFile change
ARROW-651 - [C++] Set shared library version for .deb packages
ARROW-655 - Implement DecimalArray
ARROW-656 - [C++] Implement IO interface that can read and write to a fixed-size mutable buffer
ARROW-657 - [Python] Write and read tensors (with zero copy) into shared memory
ARROW-658 - [C++] Implement in-memory arrow::Tensor objects
ARROW-659 - [C++] Add multithreaded memcpy implementation (for hardware where it helps)
ARROW-660 - [C++] Restore function that can read a complete encapsulated record batch message
ARROW-661 - [C++] Add a Flatbuffer metadata type that supports array data over 2^31 - 1 elements
ARROW-662 - [Format] Factor Flatbuffer schema metadata into a Schema.fbs
ARROW-663 - [Java] Support additional Time metadata + vector value accessors
ARROW-664 - Make C++ Arrow serialization deterministic
ARROW-669 - [Python] Attach proper tzinfo when computing boxed scalars for TimestampArray
ARROW-670 - Arrow 0.3 release
ARROW-672 - [Format] Bump metadata version for 0.3 release
ARROW-674 - [Java] Support additional Timestamp timezone metadata
ARROW-675 - [GLib] Update package metadata
ARROW-676 - [java] move from MinorType to FieldType in ValueVectors to carry all the relevant type bits
ARROW-679 - [Format] Change RecordBatch and Field length members from int to long
ARROW-681 - [C++] Build Arrow on Windows with dynamically linked boost
ARROW-684 - Python: More informative message when parquet-cpp but not parquet-arrow is available
ARROW-687 - [C++] Build and run full test suite in Appveyor
ARROW-688 - [C++] Use CMAKE_INSTALL_INCLUDEDIR for consistency
ARROW-690 - Only send JIRA updates to issues@arrow.apache.org
ARROW-698 - [C++] Add options to StreamWriter/FileWriter to permit large record batches
ARROW-700 - Add headroom interface for allocator.
ARROW-701 - [Java] Support additional Date metadata
ARROW-706 - [GLib] Add package install document
ARROW-707 - Python: All none-Pandas column should be converted to NullArray
ARROW-708 - [C++] Some IPC code simplification, perf analysis
ARROW-710 - [Python] Enable Feather APIs to read and write using Python file-like objects
ARROW-712 - [C++] Implement Array::Accept as inline visitor
ARROW-717 - [C++] IPC zero-copy round trips for arrow::Tensor
ARROW-718 - [Python] Expose arrow::Tensor with conversions to/from NumPy arrays
ARROW-719 - [GLib] Support prepared source archive release
ARROW-722 - [Python] pandas conversions for new date and time types/metadata
ARROW-724 - Add “How to Contribute” section to README
ARROW-725 - [Format] Constant length list type
ARROW-727 - [Python] Write memoryview-compatible objects in NativeFile.write with zero copy
ARROW-728 - [C++/Python] Add arrow::Table function for removing a column
ARROW-729 - [Java] Add vector type for 32-bit date as days since UNIX epoch
ARROW-731 - [C++] Add shared library related versions to .pc
ARROW-733 - [C++/Format] Change name of Fixed Width Binary to Fixed Size Binary for consistency
ARROW-734 - [Python] Support for pyarrow on Windows / MSVC
ARROW-735 - [C++] Developer instruction document for MSVC on Windows
ARROW-737 - [C++] Support obtaining mutable slices of mutable buffers
ARROW-741 - [Python] Add Python 3.6 to Travis CI
ARROW-743 - [C++] Consolidate unit tests for code in array.h
ARROW-744 - [GLib] Re-add an assertion to garrow_table_new() test
ARROW-745 - [C++] Allow use of system cpplint
ARROW-746 - [GLib] Add garrow_array_get_data_type()
ARROW-748 - [Python] Pin runtime library versions in conda-forge packages to force upgrades
ARROW-751 - [Python] Rename all Cython extensions to “private” status with leading underscore
ARROW-752 - [Python] Construct pyarrow.DictionaryArray from boxed pyarrow array objects
ARROW-754 - [GLib] Add garrow_array_is_null()
ARROW-755 - [GLib] Add garrow_array_get_value_type()
ARROW-758 - [C++] Fix compiler warnings on MSVC x64
ARROW-761 - [Python] Add function to compute the total size of tensor payloads, including metadata and padding
ARROW-763 - C++: Use python-config to find libpythonX.X.dylib
ARROW-765 - [Python] Make generic ArrowException subclass value error
ARROW-768 - [Java] Change the “boxed” object representation of date and time types
ARROW-769 - [GLib] Support building without installed Arrow C++
ARROW-770 - [C++] Move clang-tidy/format config files back to C++ source tree
ARROW-771 - [Python] Add APIs for reading individual Parquet row groups
ARROW-773 - [C++] Add function to create arrow::Table with column appended to existing table
ARROW-774 - [GLib] Remove needless LICENSE.txt copy
ARROW-775 - [Java] add simple constructors to value vectors
ARROW-779 - [C++/Python] Raise exception if old metadata encountered
ARROW-782 - [C++] Change struct to class for objects that meet the criteria in the Google style guide
ARROW-788 - Possible nondeterminism in Tensor serialization code
ARROW-795 - [C++] Combine libarrow/libarrow_io/libarrow_ipc
ARROW-798 - [Docs] Publish Format Markdown documents somehow on arrow.apache.org
ARROW-802 - [GLib] Add read examples
ARROW-803 - [GLib] Update package repository URL
ARROW-804 - [GLib] Update build document
ARROW-806 - [GLib] Support add/remove a column from table
ARROW-807 - [GLib] Update “Since” tag
ARROW-808 - [GLib] Remove needless ignore entries
ARROW-810 - [GLib] Remove io/ipc prefix
ARROW-811 - [GLib] Add GArrowBuffer
ARROW-815 - [Java] Allow for expanding underlying buffer size after allocation
ARROW-816 - [C++] Use conda packages for RapidJSON, Flatbuffers to speed up builds
ARROW-818 - [Python] Review public pyarrow.* API completeness and update docs
ARROW-820 - [C++] Build dependencies for Parquet library without arrow support
ARROW-825 - [Python] Generalize pyarrow.from_pylist to accept any object implementing the PySequence protocol
ARROW-827 - [Python] Variety of Parquet improvements to support Dask integration
ARROW-828 - [CPP] Document new requirement (libboost-regex-dev) in README.md
ARROW-832 - [C++] Upgrade thirdparty gtest to 1.8.0
ARROW-833 - [Python] “Quickstart” build / environment setup guide for Python developers
ARROW-836 - Test for timedelta compat with pandas
ARROW-841 - [Python] Add pyarrow build to Appveyor
ARROW-844 - [Format] Revise format/README.md to reflect progress reaching a more complete specification
ARROW-845 - [Python] Sync FindArrow.cmake changes from parquet-cpp
ARROW-846 - [GLib] Add GArrowTensor, GArrowInt8Tensor and GArrowUInt8Tensor
ARROW-848 - [Python] Improvements / fixes to conda quickstart guide
ARROW-849 - [C++] Add optional $ARROW_BUILD_TOOLCHAIN environment variable option for configuring build environment
ARROW-857 - [Python] Automate publishing Python documentation to arrow-site
ARROW-860 - [C++] Decide if typed Tensor subclasses are worthwhile
ARROW-861 - [Python] Move DEVELOPMENT.md to Sphinx docs
ARROW-862 - [Python] Improve source build instructions in README
ARROW-863 - [GLib] Use GBytes to implement zero-copy
ARROW-864 - [GLib] Unify Array files
ARROW-865 - [Python] Verify Parquet roundtrips for new date/time types
ARROW-868 - [GLib] Use GBytes to reduce copy
ARROW-869 - [JS] Rename directory to js/
ARROW-871 - [GLib] Unify DataType files
ARROW-876 - [GLib] Unify ArrayBuffer files
ARROW-877 - [GLib] Add garrow_array_get_null_bitmap()
ARROW-878 - [GLib] Add garrow_binary_array_get_buffer()
ARROW-880 - [GLib] Add garrow_primitive_array_get_buffer()
ARROW-890 - [GLib] Add GArrowMutableBuffer
ARROW-892 - [GLib] Fix GArrowTensor document
ARROW-893 - Add GLib document to Web site
ARROW-894 - [GLib] Add GArrowPoolBuffer
ARROW-896 - [Docs] Add Jekyll plugin for including rendered Jupyter notebooks on website
ARROW-898 - [C++] Expand metadata support to field level, provide for sharing instances of KeyValueMetadata
ARROW-904 - [GLib] Simplify error check codes
ARROW-907 - C++: Convenience construct Table from schema and arrays
ARROW-908 - [GLib] Unify OutputStream files
ARROW-910 - [C++] Write 0-length EOS indicator at end of stream
ARROW-916 - [GLib] Add GArrowBufferOutputStream
ARROW-917 - [GLib] Add GArrowBufferReader
ARROW-918 - [GLib] Use GArrowBuffer for read
ARROW-919 - [GLib] Use “id” to get type enum value from GArrowDataType
ARROW-920 - [GLib] Add Lua examples
ARROW-925 - [GLib] Fix GArrowBufferReader test
ARROW-926 - Update KEYS to include wesm
ARROW-927 - C++/Python: Add manylinux1 builds to Travis matrix
ARROW-930 - javadoc generation fails with java 8
ARROW-931 - [GLib] Reconstruct input stream
ARROW-95 - Scaffold Main Documentation using asciidoc
ARROW-965 - Website updates for 0.3.0 release
ARROW-98 - Java: API documentation

Bug Fixes

ARROW-109 - [C++] Investigate recursive data types limit in flatbuffers
ARROW-208 - Add checkstyle policy to java project
ARROW-347 - Add method to pass CallBack when creating a transfer pair
ARROW-413 - DATE type is not specified clearly
ARROW-431 - [Python] Review GIL release and acquisition in to_pandas conversion
ARROW-443 - [Python] Support for converting from strided pandas data in Table.from_pandas
ARROW-451 - [C++] Override DataType::Equals for other types with additional metadata
ARROW-454 - pojo.Field doesn't implement hashCode()
ARROW-526 - [Format] Update IPC.md to account for File format changes and Streaming format
ARROW-565 - [C++] Examine “Field::dictionary” member
ARROW-570 - Determine Java tools JAR location from project metadata
ARROW-584 - [C++] Fix compiler warnings exposed with -Wconversion
ARROW-588 - [C++] Fix compiler warnings on 32-bit platforms
ARROW-595 - [Python] StreamReader.schema returns None
ARROW-604 - Python: boxed Field instances are missing the reference to DataType
ARROW-613 - [JS] Implement random-access file format
ARROW-617 - Time type is not specified clearly
ARROW-619 - Python: Fix typos in setup.py args and LD_LIBRARY_PATH
ARROW-623 - segfault with repr of empty Field
ARROW-624 - [C++] Restore MakePrimitiveArray function
ARROW-627 - [C++] Compatibility macros for exported extern template class declarations
ARROW-628 - [Python] Install nomkl metapackage when building parquet-cpp for faster Travis builds
ARROW-630 - [C++] IPC unloading for BooleanArray does not account for offset
ARROW-636 - [C++] Add Boost / other system requirements to C++ README
ARROW-639 - [C++] Invalid offset in slices
ARROW-642 - [Java] Remove temporary file in java/tools
ARROW-644 - Python: Cython should be a setup-only requirement
ARROW-652 - Remove trailing f in merge script output
ARROW-654 - [C++] Support timezone metadata in file/stream formats
ARROW-668 - [Python] Convert nanosecond timestamps to pandas.Timestamp when converting from TimestampValue
ARROW-671 - [GLib] License file isn't installed
ARROW-673 - [Java] Support additional Time metadata
ARROW-677 - [java] Fix checkstyle jcl-over-slf4j conflict issue
ARROW-678 - [GLib] Fix dependenciesfff
ARROW-680 - [C++] Multiarch support impacts user-supplied install prefix
ARROW-682 - Add self-validation checks in integration tests
ARROW-683 - [C++] Support date32 (DateUnit::DAY) in IPC metadata, rename date to date64
ARROW-686 - [C++] Account for time metadata changes, add time32 and time64 types
ARROW-689 - [GLib] Install header files and documents to wrong directories
ARROW-691 - [Java] Encode dictionary Int type in message format
ARROW-697 - [Java] Raise appropriate exceptions when encountering large (> INT32_MAX) record batches
ARROW-699 - [C++] Arrow dynamic libraries are missed on run of unit tests on Windows
ARROW-702 - Fix BitVector.copyFromSafe to reAllocate instead of returning false
ARROW-703 - Fix issue where setValueCount(0) doesn’t work in the case that we’ve shipped vectors across the wire
ARROW-704 - Fix bad import caused by conflicting changes
ARROW-709 - [C++] Restore type comparator for DecimalType
ARROW-713 - [C++] Fix linking issue with ipc benchmark
ARROW-715 - Python: Explicit pandas import makes it a hard requirement
ARROW-716 - error building arrow/python
ARROW-720 - [java] arrow should not have a dependency on slf4j bridges in compile
ARROW-723 - Arrow freezes on write if chunk_size=0
ARROW-726 - [C++] PyBuffer dtor may segfault if constructor passed an object not exporting buffer protocol
ARROW-732 - Schema comparison bugs in struct and union types
ARROW-736 - [Python] Mixed-type object DataFrame columns should not silently coerce to an Arrow type by default
ARROW-738 - [Python] Fix manylinux1 packaging
ARROW-739 - Parallel build fails non-deterministically.
ARROW-740 - FileReader fails for large objects
ARROW-747 - [C++] Fix spurious warning caused by passing dl to add_dependencies
ARROW-749 - [Python] Delete incomplete binary files when writing fails
ARROW-753 - [Python] Unit tests in arrow/python fail to link on some OS X platforms
ARROW-756 - [C++] Do not pass -fPIC when compiling with MSVC
ARROW-757 - [C++] MSVC build fails on googletest when using NMake
ARROW-762 - Kerberos Problem with PyArrow
ARROW-776 - [GLib] Cast type is wrong
ARROW-777 - [Java] Resolve getObject behavior per changes / discussion in ARROW-729
ARROW-778 - Modify merge tool to work on Windows
ARROW-781 - [Python/C++] Increase reference count for base object?
ARROW-783 - Integration tests fail for length-0 record batch
ARROW-787 - [GLib] Fix compilation errors caused by ARROW-758
ARROW-793 - [GLib] Wrong indent
ARROW-794 - [C++] Check whether data is contiguous in ipc::WriteTensor
ARROW-797 - [Python] Add updated pyarrow.* public API listing in Sphinx docs
ARROW-800 - [C++] Boost headers being transitively included in pyarrow
ARROW-805 - listing empty HDFS directory returns an error instead of returning empty list
ARROW-809 - C++: Writing sliced record batch to IPC writes the entire array
ARROW-812 - Pip install pyarrow on mac failed.
ARROW-817 - [C++] Fix incorrect code comment from ARROW-722
ARROW-821 - [Python] Extra file _table_api.h generated during Python build process
ARROW-822 - [Python] StreamWriter fails to open with socket as sink
ARROW-826 - Compilation error on Mac with -DARROW_PYTHON=on
ARROW-829 - Python: Parquet: Dictionary encoding is deactivated if column-wise compression was selected
ARROW-830 - Python: jemalloc is not anymore publicly exposed
ARROW-839 - [C++] Portable alternative to PyDate_to_ms function
ARROW-847 - C++: BUILD_BYPRODUCTS not specified anymore for gtest
ARROW-852 - Python: Also set Arrow Library PATHS when detection was done through pkg-config
ARROW-853 - [Python] It is no longer necessary to modify the RPATH of the Cython extensions on many environments
ARROW-858 - Remove dependency on boost regex
ARROW-866 - [Python] Error from file object destructor
ARROW-867 - [Python] Miscellaneous pyarrow MSVC fixes
ARROW-875 - Nullable variable length vector fillEmpties() fills an extra value
ARROW-879 - compat with pandas 0.20.0
ARROW-882 - [C++] On Windows statically built lib file overwrites lib file of shared build
ARROW-886 - VariableLengthVectors don't reAlloc offsets
ARROW-887 - [format] For backward compatibility, new unit fields must have default values matching previous implied unit
ARROW-888 - BitVector transfer() does not transfer ownership
ARROW-895 - Nullable variable length vector lastSet not set correctly
ARROW-900 - [Python] UnboundLocalError in ParquetDatasetPiece
ARROW-903 - [GLib] Remove a needless “.”
ARROW-914 - [C++/Python] Fix Decimal ToBytes
ARROW-922 - Allow Flatbuffers and RapidJSON to be used locally on Windows
ARROW-928 - Update CMAKE script to detect unsupported msvc compilers versions
ARROW-933 - [Python] arrow_python bindings have debug print statement
ARROW-934 - [GLib] Glib sources missing from result of 02-source.sh
ARROW-936 - Fix release README
ARROW-938 - Fix Apache Rat errors from source release build