suibianwanwank commented on code in PR #4117:
URL: https://github.com/apache/calcite/pull/4117#discussion_r1900843327
##########
core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java:
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@@ -8620,14 +8620,22 @@ private void checkLiteral2(String expression, String
expected) {
* <a
href="https://issues.apache.org/jira/browse/CALCITE-6748";>[CALCITE-6748]
* RelToSqlConverter returns the wrong result when Aggregate is on Sort</a>.
*/
@Test void testAggregateOnSort() {
- final String query = "select max(\"product_class_id\") "
+ final String query0 = "select max(\"product_class_id\") "
+ "from (select * from \"product\" order by \"brand_name\" asc limit
10) t";
- final String expected = "SELECT MAX(\"product_class_id\")\n"
+ final String expected0 = "SELECT MAX(\"product_class_id\")\n"
+ "FROM (SELECT \"product_class_id\"\n"
+ "FROM \"foodmart\".\"product\"\n"
+ "ORDER BY \"brand_name\"\n"
+ "FETCH NEXT 10 ROWS ONLY) AS \"t1\"";
- sql(query).ok(expected);
+ sql(query0).ok(expected0);
+
+ final String query1 = "select max(\"product_class_id\") "
+ + "from (select * from \"product\" offset 10 ) t";
+ final String expected1 = "SELECT MAX(\"product_class_id\")\n"
+ + "FROM (SELECT \"product_class_id\"\n"
+ + "FROM \"foodmart\".\"product\"\n"
+ + "OFFSET 10 ROWS) AS \"t1\"";
Review Comment:
There is a problem with both `COUNT` and `MAX`. When there is an emp table
in PG with 200 rows. The query `select * from emp offset 10` will returns 190
rows.
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