Class: ArrowFormat::Org::Apache::Arrow::Flatbuf::MetadataVersion

Inherits:

FlatBuffers::Enum

• Object
• FlatBuffers::Enum
• ArrowFormat::Org::Apache::Arrow::Flatbuf::MetadataVersion

Defined in:

lib/arrow-format/org/apache/arrow/flatbuf/metadata_version.rb

Constant Summary

V1 =

0.1.0 (October 2016).

register("V1", 0)

V2 =

0.2.0 (February 2017). Non-backwards compatible with V1.

register("V2", 1)

V3 =

0.3.0 -> 0.7.1 (May - December 2017). Non-backwards compatible with V2.

register("V3", 2)

V4 =

>= 0.8.0 (December 2017). Non-backwards compatible with V3.

register("V4", 3)

V5 =

>= 1.0.0 (July 2020). Backwards compatible with V4 (V5 readers can read V4 metadata and IPC messages). Implementations are recommended to provide a V4 compatibility mode with V5 format changes disabled.

Incompatible changes between V4 and V5:

• Union buffer layout has changed. In V5, Unions don’t have a validity bitmap buffer.

register("V5", 4)