beyond1920 commented on a change in pull request #16620:
URL: https://github.com/apache/flink/pull/16620#discussion_r682437085
##########
File path:
flink-table/flink-table-planner/src/test/resources/org/apache/flink/table/planner/plan/stream/sql/DeduplicateTest.xml
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@@ -207,7 +207,7 @@ LogicalProject(a=[$0], b=[$1], c=[$2], proctime=[$3],
rowtime=[$4], rowNum=[$5])
</Resource>
<Resource name="optimized exec plan">
<![CDATA[
-Calc(select=[a, b, c, PROCTIME_MATERIALIZE(proctime) AS proctime, rowtime,
1:BIGINT AS rowNum])
+Calc(select=[a, b, c, PROCTIME_MATERIALIZE(proctime) AS proctime, rowtime,
1:BIGINT AS $5])
Review comment:
After some investigation, I found the root cause is original relnode
type field names are not equals to that of equivalent relnode after
`ProjectToWindowRule.PROJECT_TO_LOGICAL_PROJECT_AND_WINDOW`. It seems not to be
reasonable, however calcite does not have a strong guarantee that field type
names are same after apply rule .
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