WangGuangxin opened a new pull request, #9077:
URL: https://github.com/apache/incubator-gluten/pull/9077
## What changes were proposed in this pull request?
Where both `spark.gluten.supported.hive.udfs` and
`spark.gluten.sql.columnar.partial.project` rules are applicable, we should
prioritize `UDFMapping` over `ColumnarPartialProject`.
For example,
```
set spark.gluten.supported.hive.udfs=udfB;
select default.udfA(input1), default.udfB(input2), get_json_object(input3,
'$.a') from t
```
Before this patch, the plan is
```
---------------------------------------------------------------------------------------------------------------------------------
| ColumnarPartialProject(default.udfA(input1) as _SparkPartialProject0,
default.udfB(input2) as _SparkPartialProject1, input3) |
---------------------------------------------------------------------------------------------------------------------------------
|
---------------------------------------------------------------------------------------------------------------------------------
|ProjectExecTransformer(_SparkPartialProject0, _SparkPartialProject1,
get_json_object(input3, '$.a'))|
---------------------------------------------------------------------------------------------------------------------------------
```
after this patch, the plan is
```
---------------------------------------------------------------------------------------------------------------------------------
| ColumnarPartialProject(default.udfA(input1) as _SparkPartialProject0,
input2, input3) |
---------------------------------------------------------------------------------------------------------------------------------
|
---------------------------------------------------------------------------------------------------------------------------------
|ProjectExecTransformer(_SparkPartialProject0, default.udfB(input2),
get_json_object(input3, '$.a')) |
---------------------------------------------------------------------------------------------------------------------------------
```
So that the `default.udfB` can be transformed and offload to velox to
evaluation.
(Fixes: \#9076)
## How was this patch tested?
Manually
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