KurtYoung commented on a change in pull request #8179: [FLINK-12200] [Table
API] Support UNNEST for MAP types
URL: https://github.com/apache/flink/pull/8179#discussion_r277285495
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File path:
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/plan/util/ExplodeFunctionUtil.scala
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@@ -54,6 +55,15 @@ abstract class ExplodeTableFunction[T] extends
TableFunction[T] {
}
}
+class MapExplodeTableFunc extends TableFunction[Object]{
Review comment:
I'm not sure making this table function returning object and let framework
rely on information somewhere else to perform right is good choice. This will
make the codes fragile.
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