Github user gatorsmile commented on the pull request:
https://github.com/apache/spark/pull/11555#issuecomment-193137731
So far, the test cases I wrote are listed below. I think we still need to
add more to cover all the cases.
```
test("window basic") {
checkHiveQl(
s"""
|select key, value,
|round(avg(value) over (), 2)
|from parquet_t1 order by key
""".stripMargin)
}
test("window with different window specification") {
checkHiveQl(
s"""
|select key, value,
|dense_rank() over (order by key, value) as dr,
|sum(value) over (partition by key order by key) as sum
|from parquet_t1
""".stripMargin)
}
test("window with the same window specification with aggregate + having")
{
checkHiveQl(
s"""
|select key, value,
|sum(value) over (partition by key % 5 order by key) as dr
|from parquet_t1 group by key, value having key > 5
""".stripMargin)
}
test("window with the same window specification with aggregate
functions") {
checkHiveQl(
s"""
|select key, value,
|sum(value) over (partition by key % 5 order by key) as dr
|from parquet_t1 group by key, value
""".stripMargin)
}
test("window with the same window specification with aggregate") {
checkHiveQl(
s"""
|select key, value,
|dense_rank() over (distribute by key sort by key, value) as dr,
|count(key)
|from parquet_t1 group by key, value
""".stripMargin)
}
test("window with the same window specification without aggregate and
filter") {
checkHiveQl(
s"""
|select key, value,
|dense_rank() over (distribute by key sort by key, value) as dr,
|count(key) over(distribute by key sort by key, value) as ca
|from parquet_t1
""".stripMargin)
}
```
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