xy2953396112 commented on a change in pull request #2702:
URL: https://github.com/apache/calcite/pull/2702#discussion_r802219578
##########
File path:
core/src/test/java/org/apache/calcite/test/MaterializedViewSubstitutionVisitorTest.java
##########
@@ -1259,6 +1259,259 @@ protected final MaterializedViewFixture sql(String
materialize,
sql(mv, query).ok();
}
+ /**
+ * It need be matched, info of offset and fetch.
+ * eg: mv[null, null], query[null, 3].
+ */
+ @Test void testSortToSort1() {
+ 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\"\n"
+ + "fetch next 3 rows only";
+ sql(mv, query)
+ .checkingThatResultContains(""
+ + "LogicalSort(fetch=[3])\n"
+ + " EnumerableTableScan(table=[[hr, MV0]])")
+ .ok();
+ }
+
+ /**
+ * It need be matched, info of offset and fetch.
+ * eg: mv[null, null], query[2, 3].
+ */
+ @Test void testSortToSort2() {
+ 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\"\n"
+ + "offset 2 rows\n"
+ + "fetch next 3 rows only";
+ sql(mv, query)
+ .checkingThatResultContains(""
+ + "LogicalSort(offset=[2], fetch=[3])\n"
+ + " EnumerableTableScan(table=[[hr, MV0]])")
+ .ok();
+ }
+
+ /**
+ * It need be matched, info of offset and fetch.
+ * eg: mv[2, null], query[3, null]
+ */
+ @Test void testSortToSort3() {
+ final String mv = ""
+ + "select \"name\", \"deptno\"\n"
+ + "from \"emps\"\n"
+ + "order by \"deptno\"\n"
+ + "offset 2 rows";
+ final String query = ""
Review comment:
how about `order by name`?
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