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xzh_dz commented on CALCITE-4800: --------------------------------- [~wojustme] you can take it. > Add SortToSortUnifyRule in SubstitutionVisitor > ---------------------------------------------- > > Key: CALCITE-4800 > URL: https://issues.apache.org/jira/browse/CALCITE-4800 > Project: Calcite > Issue Type: Improvement > Reporter: xzh_dz > Priority: Major > > In my project, there are more usage scenarios for materialized view > recognition, and the `Sort Operator` can help sort data sets.But it has not > been supported yet.A `Sort Operator` failed example can be reproduced as > follows. > {code:java} > // code placeholder > org.apache.calcite.test.MaterializedViewSubstitutionVisitorTest > @Test void testSortToSort() { > final String mv = "" > + "select \"name\", \"deptno\"\n" > + "from \"emps\"\n" > + "order by \"deptno\""; > final String query = "" > + "select \"name\", \"deptno\"\n" > + "from \"emps\"\n" > + "order by \"deptno\" desc"; > sql(mv, query).withChecker( > resultContains("" > + "EnumerableTableScan(table=[[hr, MV0]])")).ok(); > } > {code} > Exception: > {code:java} > // code placeholder > Materialized view failed to be matched by optimized results:Materialized view > failed to be matched by optimized results: > java.lang.AssertionError: Materialized view failed to be matched by optimized > results: > at > org.apache.calcite.test.AbstractMaterializedViewTest.checkMaterialize(AbstractMaterializedViewTest.java:116) > at > org.apache.calcite.test.AbstractMaterializedViewTest.access$000(AbstractMaterializedViewTest.java:67) > at > org.apache.calcite.test.AbstractMaterializedViewTest$Sql.ok(AbstractMaterializedViewTest.java:229) > at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627) > at > org.apache.calcite.util.ImmutableBeans.lambda$makeDef$3(ImmutableBeans.java:299) > {code} > > -- This message was sent by Atlassian Jira (v8.20.1#820001)