rtpsw

ARROW-17980: [C++] As-of-Join Substrait extension

2

Replacing https://github.com/apache/arrow/pull/14385

ARROW-17610: [C++] Support additional source types in SourceNode

8

See https://issues.apache.org/jira/browse/ARROW-17610

feat(proto): implement `AsOfJoinRel`

34

See https://github.com/substrait-io/substrait/issues/330

feat(proto): Multi-table and as-of joining

1

We'd like to add support for multi-table and as-of joining. Multi-table means multiple right tables, i.e., extending to left-join-right(s). As-of joining uses an ordered key with inexact matching - it...

feat(proto): Add Write relation to support multiple outputs

2

Currently, a Substrait plan produces a single output corresponding to its root relation. In some cases, multiple outputs are needed, e.g., for multi-table computation as well as for check-point and...

feat(proto): Add protobuf support for user-defined-function extension

2

Currently, Ibis has [vectorized UDF nodes](https://github.com/ibis-project/ibis/blob/d7318fdf87121cd8fadbcf0369a2b217aab3053a/ibis/expr/operations/vectorized.py#L11-L50) that are not handled by Ibis-Substrait (see https://github.com/ibis-project/ibis-substrait/issues/236). This issue is specific for the protobuf changes needed.