xiedeyantu commented on code in PR #4475:
URL: https://github.com/apache/calcite/pull/4475#discussion_r2284171394
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core/src/test/resources/org/apache/calcite/test/RelOptRulesTest.xml:
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@@ -17911,6 +17911,56 @@ LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2],
MGR=[$3], HIREDATE=[$4], SAL=[$
LogicalSort(sort0=[$7], sort1=[$0], dir0=[ASC], dir1=[ASC])
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8], EXPR$9=[null:NULL])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
+]]>
+ </Resource>
+ </TestCase>
+ <TestCase name="testSortRemoveDuplicateKeys">
+ <Resource name="sql">
+ <![CDATA[select d1
+ from (select deptno as d1, deptno as d2 from dept) as tmp
+ order by d1, d2, d1 desc
+]]>
+ </Resource>
+ <Resource name="planBefore">
+ <![CDATA[
+LogicalProject(D1=[$0])
+ LogicalSort(sort0=[$0], sort1=[$1], dir0=[ASC], dir1=[ASC])
+ LogicalProject(D1=[$0], D2=[$0])
+ LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+]]>
+ </Resource>
+ <Resource name="planAfter">
+ <![CDATA[
+LogicalProject(D1=[$0])
+ LogicalSort(sort0=[$0], dir0=[ASC])
+ LogicalProject(D1=[$0], D2=[$0])
+ LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+]]>
+ </Resource>
+ </TestCase>
+ <TestCase name="testSortRemoveDuplicateKeysJoin">
+ <Resource name="sql">
+ <![CDATA[select * from (select deptno as d1, deptno as d2 from emp) as t1
+ join emp t2 on t1.d1 = t2.deptno order by t1.d1, t1.d2]]>
+ </Resource>
+ <Resource name="planBefore">
+ <![CDATA[
+LogicalSort(sort0=[$0], sort1=[$1], dir0=[ASC], dir1=[ASC])
+ LogicalProject(D1=[$0], D2=[$1], EMPNO=[$2], ENAME=[$3], JOB=[$4], MGR=[$5],
HIREDATE=[$6], SAL=[$7], COMM=[$8], DEPTNO=[$9], SLACKER=[$10])
+ LogicalJoin(condition=[=($0, $9)], joinType=[inner])
+ LogicalProject(D1=[$7], D2=[$7])
+ LogicalTableScan(table=[[CATALOG, SALES, EMP]])
+ LogicalTableScan(table=[[CATALOG, SALES, EMP]])
+]]>
+ </Resource>
+ <Resource name="planAfter">
+ <![CDATA[
+LogicalSort(sort0=[$0], dir0=[ASC])
Review Comment:
This "c1 DESC NULLS FIRST" will be eliminated. I will add it to this case.
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