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https://issues.apache.org/jira/browse/CALCITE-3770?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17034034#comment-17034034
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Julian Hyde commented on CALCITE-3770:
--------------------------------------

Quite a few RelNode sub-classes were renamed in CALCITE-306 
([a0ba73cd|https://github.com/apache/calcite/commit/a0ba73cd2de76696b96a1cd828d2aa4d3ef9eb55.patch]):

{noformat}
$ git log -n1 -p a0ba73cd2de76696b96a1cd828d2aa4d3ef9eb55|grep '^-.* class 
[A-Za-z]*Rel '
-  public static class EnumerableInterpreterRel extends SingleRel
-  public static class EnumerableWindowRel extends WindowRelBase
-  public static class EnumerableTableFunctionRel extends TableFunctionRelBase
-  public static class JdbcCalcRel extends SingleRel implements JdbcRel {
-  public static class JdbcAggregateRel extends AggregateRelBase
-  public static class FilterScanRel extends TableAccessRelBase {
-public class NoneConverterRel extends ConverterRelImpl {
-public class CollectRel extends SingleRel {
-public final class CorrelatorRel extends JoinRelBase {
-public class EmptyRel extends AbstractRelNode {
-public class SamplingRel extends SingleRel {
-public class SemiJoinRel extends EquiJoinRel {
-public abstract class SetOpRel extends AbstractRelNode {
-public class SortRel extends SingleRel {
-public class UncollectRel extends SingleRel {
-public final class AggregateRel extends AggregateRelBase {
-public final class CalcRel extends CalcRelBase {
-public final class FilterRel extends FilterRelBase {
-public final class IntersectRel extends IntersectRelBase {
-public final class JoinRel extends JoinRelBase {
-public final class MinusRel extends MinusRelBase {
-public final class OneRowRel extends OneRowRelBase {
-public final class ProjectRel extends ProjectRelBase {
-public class TableFunctionRel extends TableFunctionRelBase {
-public final class TableModificationRel extends TableModificationRelBase {
-public final class TableAccessRel extends TableAccessRelBase {
-public final class UnionRel extends UnionRelBase {
-public class ValuesRel extends ValuesRelBase {
-public final class WindowRel extends WindowRelBase {
-public abstract class EquiJoinRel extends JoinRelBase {
-  private static class LcsRowScanRel {
-public final class MultiJoinRel extends AbstractRelNode {
-public class MongoProjectRel extends ProjectRelBase implements MongoRel {
{noformat}

Could you check for some others?

Your change to {{tutorial.md}} messes up the formatting, I think.

> Minor change "EnumerableCalcRel" to "EnumerableCalcRel"
> -------------------------------------------------------
>
>                 Key: CALCITE-3770
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3770
>             Project: Calcite
>          Issue Type: Improvement
>            Reporter: Jiatao Tao
>            Priority: Trivial
>
> EnumerableCalcRel appears in many places in code, but the class's name is 
> EnumerableCalc.
> I don't know if it is on purpose, but it seems confusing when I want to find 
> the class EnumerableCalcRel but I can not find it.



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