NaNs are correctly handled now for Parquet predicate push-downs ( GH-18481).

Added support for DeltaLengthByteArray encoding to the Parquet writer ( GH-33024).The output of the aggregate relation now conforms to the spec GH-34786.Added an extension relation to support segmented aggregation GH-34626.Added API reference documentation GH-34011.Add support for the cast expression element GH-31910.Add support for the round function GH-33588.Breaking Change: Reorder output fields of “group_by” node so that keys/segment keys come before aggregates ( GH-33616).Exec nodes now can have a concept of “ordering” and will reject non-sensible plans ( GH-34136).Acero has been moved out of libarrow into it’s own shared library, allowing for smaller builds of the core libarrow ( GH-15280).Cast kernels are now built into libarrow by default ( GH-34388).New kernel to convert timestamp with timezone to wall time ( GH-33143).The FixedShapeTensor Logical value type has been implemented using ExtensionType ( GH-15483, GH-34796).Run-End Encoded Arrays have been implemented and are accessible ( GH-32104).

Go now implements the Flight SQL extensions for Substrait and transaction support. The Java server builder API now offers easier access to the underlying gRPC builder. The JDBC driver for Arrow Flight SQL has had some bugfixes, and has been refactored into a core library (which is not distributed as an uberjar with shaded names) and a driver (which is distributed as an uberjar). This is based on a Fixed-Size List layout as storage array Represent an Array where each slot contains a tensor, with all tensors having the same Thanks for your contributions and participation in the project! Columnar Format NotesĪ first “canonical” extension type has been formalized: arrow.fixed_shape_tensor to Will Jones have joined the Project Management Committee (PMC). Since the 11.0.0 release, Wang Mingming, Mustafa Akur and Ruihang Xia Many other bugfixes and improvements have been made: we refer The release notes below are not exhaustive and only expose selected highlights To learn how to get the libraries for your platform. With 531 commits from 97 distinct contributors. Over 3 months of development work and includes 476 resolved issues The Apache Arrow team is pleased to announce the 12.0.0 release.

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