gustavodemorais commented on code in PR #26703:
URL: https://github.com/apache/flink/pull/26703#discussion_r2158210747


##########
flink-table/flink-table-planner/src/test/resources/org/apache/flink/table/planner/plan/stream/sql/RelTimeIndicatorConverterTest.xml:
##########
@@ -150,6 +150,44 @@ Sink(table=[default_catalog.default_database.appendSink1], 
fields=[long, sum])
 
 Sink(table=[default_catalog.default_database.appendSink2], fields=[long, sum])
 +- Reused(reference_id=[1])
+]]>
+    </Resource>
+  </TestCase>
+  <TestCase name="testJoin">
+    <Resource name="sql">
+      <![CDATA[
+SELECT T1.rowtime, T2.proctime, T1.long, T2.`int`, T3.long
+FROM MyTable1 T1
+JOIN MyTable2 T2 ON T1.long = T2.long AND T1.`int` > 10
+JOIN MyTable1 T3 ON T1.long = T3.long AND T3.`int` < 20
+      ]]>
+    </Resource>
+    <Resource name="ast">
+      <![CDATA[
+LogicalProject(rowtime=[$0], proctime=[$5], long=[$1], int=[$4], long0=[$7])
++- LogicalJoin(condition=[AND(=($1, $7), <($8, 20))], joinType=[inner])
+   :- LogicalJoin(condition=[AND(=($1, $3), >($2, 10))], joinType=[inner])
+   :  :- LogicalTableScan(table=[[default_catalog, default_database, 
MyTable1]])
+   :  +- LogicalTableScan(table=[[default_catalog, default_database, 
MyTable2]])
+   +- LogicalTableScan(table=[[default_catalog, default_database, MyTable1]])
+]]>
+    </Resource>
+    <Resource name="optimized exec plan">
+      <![CDATA[
+Calc(select=[rowtime, proctime, long, int0 AS int, long0])
++- Join(joinType=[InnerJoin], where=[(long = long0)], select=[rowtime, long, 
int0, proctime, long0], leftInputSpec=[NoUniqueKey], 
rightInputSpec=[NoUniqueKey])

Review Comment:
   It's the testThreeWayJoinWithTimeAttributesMaterialization inside 
MultiJoinTest. 
   
   Two minor reasons I put it here and not there:
   - The whole file is still in scala instead of java
   - I wasn't sure if it's safe the modify the tableConfig for only one test. 
TestJoin would require the MultiJoinEnabled config to be false the the MJ for 
it to be true.
   
   Let me know if that makes sense or else I can move the test here.



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