twalthr commented on a change in pull request #12862:
URL: https://github.com/apache/flink/pull/12862#discussion_r452811509
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File path:
flink-table/flink-table-planner-blink/src/test/resources/org/apache/flink/table/planner/plan/batch/sql/UnnestTest.xml
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@@ -34,7 +34,7 @@ LogicalProject(a=[$0], s=[$3])
<Resource name="planAfter">
<![CDATA[
Calc(select=[a, f0 AS s])
-+- Correlate(invocation=[explode($cor0.c)],
correlate=[table(explode($cor0.c))], select=[a,b,c,f0],
rowType=[RecordType(INTEGER a, BIGINT b, VARCHAR(2147483647) ARRAY c,
VARCHAR(2147483647) f0)], joinType=[INNER])
Review comment:
I don't know why we called it `explode` in the past. There is no reason
for it. The official term for this function in SQL is `UNNEST` and it is rather
confusing to not show this in the plan as well.
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