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Posted to issues@calcite.apache.org by "yanjing.wang (Jira)" <ji...@apache.org> on 2021/11/26 07:05:00 UTC
[jira] [Commented] (CALCITE-2718) field names are unexpected after ProjectRemoveRule applied
[ https://issues.apache.org/jira/browse/CALCITE-2718?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17449405#comment-17449405 ]
yanjing.wang commented on CALCITE-2718:
---------------------------------------
Hi, Julian, I encountered the same problem, I wonder if it means that I need replace the top project with original plan row type if I want to get a sql with same semantics with the original plan.
> field names are unexpected after ProjectRemoveRule applied
> ----------------------------------------------------------
>
> Key: CALCITE-2718
> URL: https://issues.apache.org/jira/browse/CALCITE-2718
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.17.0
> Reporter: godfrey he
> Assignee: Julian Hyde
> Priority: Major
> Fix For: 1.18.0
>
>
> {code:java}
> @Test public void testProjectRemove() {
> final String sql = "select name as n from (select name from dept) t";
> sql(sql).withRule(ProjectRemoveRule.INSTANCE).check();
> }
> {code}
> currently, the result plan is:
> {panel:title=plan}
> LogicalProject(NAME=[$1])
> LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
> {panel}
> the filed name of LogicalProject should be `N` instead of `NAME`
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