twalthr commented on a change in pull request #7201: [FLINK-7208] [table]
Optimize Min/MaxWithRetractAggFunction with DataView
URL: https://github.com/apache/flink/pull/7201#discussion_r238959968
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File path:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/runtime/stream/table/AggregateITCase.scala
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@@ -203,13 +203,13 @@ class AggregateITCase extends StreamingWithStateTestBase
{
.groupBy('b)
.select('a.count as 'cnt, 'b)
.groupBy('cnt)
- .select('cnt, 'b.count as 'freq)
+ .select('cnt, 'b.count as 'freq, 'b.min as 'min, 'b.max as 'max)
val results = t.toRetractStream[Row](queryConfig)
results.addSink(new RetractingSink)
env.execute()
- val expected = List("1,1", "2,1", "3,1", "4,1", "5,1", "6,1")
+ val expected = List("1,1,1,1", "2,1,2,2", "3,1,3,3", "4,1,4,4", "5,1,5,5",
"6,1,6,6")
Review comment:
Yes we can also do this in another PR. In general we definitely need more
harness tests. For example, FLINK-10674 could have never been found without
proper unit tests. It was luck that the distinct accumulator threw a
NullPointerException.
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