[jira] [Created] (CALCITE-3839) Can't get group field by name: "field [ENAME] not found;"

[Anton Haidai (Jira)]

Anton Haidai created CALCITE-3839:
-------------------------------------

             Summary: Can't get group field by name: "field [ENAME] not found;"
                 Key: CALCITE-3839
                 URL: https://issues.apache.org/jira/browse/CALCITE-3839
             Project: Calcite
          Issue Type: Bug
    Affects Versions: 1.22.0
            Reporter: Anton Haidai


The regression is spotted in 1.22.0 RC 3. The test works fine in 1.21.0 branch.
RelBuilderTest:
{code}
  @Test public void testGetGroupFieldByName() {
      final Function<RelBuilder, RelNode> f = builder -> {
          RelBuilder aggregated = builder.scan("EMP")
              .project(builder.field("EMPNO"), builder.field("ENAME"), 
builder.field("SAL"))
              .aggregate(
                  builder.groupKey(builder.field("ENAME")),
                  builder.sum(builder.field("SAL"))
              );
          RexInputRef groupFieldReference = aggregated.field("ENAME");
          assertThat(groupFieldReference.getIndex(), is(0));
          return aggregated.build();
      };

      final String expected =
          "LogicalAggregate(group=[{1}], agg#0=[SUM($2)])\n" +
          "  LogicalProject(EMPNO=[$0], ENAME=[$1], SAL=[$5])\n" +
          "    LogicalTableScan(table=[[scott, EMP]])\n";
      assertThat(f.apply(createBuilder(c -> c)), hasTree(expected));
  }
{code}

Error (1.22.0 RC 3): 
{code}
field [ENAME] not found; input fields are: [EMPNO, $f1]
java.lang.IllegalArgumentException: field [ENAME] not found; input fields are: 
[EMPNO, $f1]
        at org.apache.calcite.tools.RelBuilder.field(RelBuilder.java:402)
        at org.apache.calcite.tools.RelBuilder.field(RelBuilder.java:385)
        at 
org.apache.calcite.test.RelBuilderTest.lambda$testGetGroupFieldByName$15(RelBuilderTest.java:990)
        at 
org.apache.calcite.test.RelBuilderTest.testGetGroupFieldByName(RelBuilderTest.java:999)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
{code}



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