1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
syntax = "proto3";
package arrow.substrait_ext;
import "substrait/algebra.proto";
option csharp_namespace = "Arrow.Substrait";
option go_package = "github.com/apache/arrow/substrait";
option java_multiple_files = true;
option java_package = "io.arrow.substrait";
// As-Of-Join relation
message AsOfJoinRel {
// One key per input relation, each key describing how to join the corresponding input
repeated AsOfJoinKey keys = 1;
// As-Of tolerance, in units of the on-key
int64 tolerance = 2;
// As-Of-Join key
message AsOfJoinKey {
// A field reference defining the on-key
// The type and units of the referenced field must be the same across all inputs
.substrait.Expression on = 1;
// A list of field references defining the by-key
// The types corresponding to the referenced fields must be the same across all inputs
repeated .substrait.Expression by = 2;
}
}
// Named tap relation
//
// A tap is a relation having a single input relation that it passes through, while also
// causing some side-effect, e.g., writing to external storage.
message NamedTapRel {
// The kind of tap
string kind = 1;
// A name used to configure the tap, e.g., a URI defining the destination of writing
string name = 2;
// Column names for the tap's output. If specified there must be one name per field.
// If empty, field names will be automatically generated.
repeated string columns = 3;
}
message SegmentedAggregateRel {
// Grouping keys of the aggregation
repeated substrait.Expression.FieldReference grouping_keys = 1;
// Segment keys of the aggregation
repeated substrait.Expression.FieldReference segment_keys = 2;
// A list of one or more aggregate expressions along with an optional filter.
repeated substrait.AggregateRel.Measure measures = 3;
}
|
