[
https://issues.apache.org/jira/browse/ARROW-17484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17582110#comment-17582110
]
Vibhatha Lakmal Abeykoon commented on ARROW-17484:
--------------------------------------------------
{code:json}
"relations": [{
"rel": {
"aggregate": {
"common": {
"emit": {
"outputMapping": [0]
}
},
"input": {
"read": {
"base_schema": {
"names": ["A", "B", "C"],
"struct": {
"types": [{
"i32": {}
}, {
"i32": {}
}, {
"i32": {}
}]
}
},
"local_files": {
"items": [
{
"uri_file": ")" +
substrait_file_uri +
R"(",
"parquet": {}
}
]
}
}
},
"groupings": [{
"groupingExpressions": [{
"selection": {
"directReference": {
"structField": {
"field": 0
}
}
}
}]
}],
"measures": [{
"measure": {
"functionReference": 0,
"arguments": [{
"value": {
"selection": {
"directReference": {
"structField": {
"field": 2
}
}
}
}
}],
"sorts": [],
"phase": "AGGREGATION_PHASE_INITIAL_TO_RESULT",
"invocation": "AGGREGATION_INVOCATION_ALL",
"outputType": {
"i32": {}
}
}
}]
}
}
}],
"extensionUris": [{
"extension_uri_anchor": 0,
"uri":
"https://github.com/substrait-io/substrait/blob/main/extensions/functions_arithmetic.yaml";
}],
"extensions": [{
"extension_function": {
"extension_uri_reference": 0,
"function_anchor": 0,
"name": "sum"
}
}],
{code}
For instance, here, if we debug and check the aggregate function's return type,
it mentions that _i32_ is the _output_type_ , but at the end of the execution
the return type is _i64_. This is not the expected behavior.
> [C++] Substrait to Arrow Aggregate doesn't take the provided Output Type for
> aggregates
> ---------------------------------------------------------------------------------------
>
> Key: ARROW-17484
> URL: https://issues.apache.org/jira/browse/ARROW-17484
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Vibhatha Lakmal Abeykoon
> Assignee: Vibhatha Lakmal Abeykoon
> Priority: Major
>
> The current Substrait to Aggregate deserializer doesn't take the plan
> provided output type as the output type of the execution plan.
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