[CALCITE-2718] field names are unexpected after ProjectRemoveRule applied

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 1.17.0
• Fix Version/s: 1.18.0
• Component/s: core
• Assignee: Julian Hyde
• Reporter: godfrey he
• Created: 29/Nov/18 11:42
• Updated: 26/Nov/21 08:53
• Resolved: 30/Nov/18 02:55

Description

@Test public void testProjectRemove() {
    final String sql = "select name as n from (select name from dept) t";
    sql(sql).withRule(ProjectRemoveRule.INSTANCE).check();
  }

currently, the result plan is:

plan

LogicalProject(NAME=[$1])
LogicalTableScan(table=[[CATALOG, SALES, DEPT]])

the filed name of LogicalProject should be `N` instead of `NAME`