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https://issues.apache.org/jira/browse/CALCITE-3664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wang Yanlin reassigned CALCITE-3664:
------------------------------------
Assignee: Wang Yanlin
> Lost sort in subquery when converting SqlNode to Relnode
> --------------------------------------------------------
>
> Key: CALCITE-3664
> URL: https://issues.apache.org/jira/browse/CALCITE-3664
> Project: Calcite
> Issue Type: Bug
> Reporter: Wang Yanlin
> Assignee: Wang Yanlin
> Priority: Major
>
> Lost sort in subquery when converting a SqlNode to Relnode, making its
> semantics changed.
> The test case to reproduce
> {code:java}
> // SqlToRelConverterTest
> @Test public void testSortInSubquery() {
> final String sql = "select ename from (select ename from emp order by
> ename) a";
> sql(sql).ok();
> }
> {code}
> This test case will success with this plan.
> {code:java}
> <TestCase name="testSortInSubquery">
> <Resource name="sql">
> <![CDATA[select ename from (select ename from emp order by ename)
> a]]>
> </Resource>
> <Resource name="plan">
> <![CDATA[
> LogicalProject(ENAME=[$1])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> ]]>
> </Resource>
> </TestCase>
> {code}
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