beyond1920 commented on a change in pull request #16620:
URL: https://github.com/apache/flink/pull/16620#discussion_r683105222
##########
File path:
flink-table/flink-table-planner/src/test/resources/org/apache/flink/table/planner/plan/stream/sql/DeduplicateTest.xml
##########
@@ -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:
I agree with you. However it's hard if Calcite does not provide strong
guarantee. Because we could only guarantee the extended rules in Flink obey
this, but currently we also introduces many built-in rules of Calcite in Flink.
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