xumingming opened a new issue, #5757:
URL: https://github.com/apache/incubator-gluten/issues/5757
### Description
For the following test case:
```scala
test("test explode1") {
withTempView("t1") {
sql(
"""select * from values (array(1)), (array(2)), (array(3)),
(array(4))
|as tbl(a)
""".stripMargin).createOrReplaceTempView("t1")
runQueryAndCompare(
s"""
|SELECT explode(a) from t1;
|""".stripMargin) {
checkGlutenOperatorMatch[GenerateExecTransformer]
}
}
}
```
The input of `explode` is already an Attribute, while current implementation
would still plug in a new ProjectExec, which seems not necessary?
```
Generate explode(a#122), false, [col#128]
+- Project [a#122, a#122]
+- RewrittenNodeWall Filter (size(a#122, true) > 0)
```
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