Apache Pinot

```// Sample avro schema with an aliased field
record Foo {
  string @aliases(["old_bar"]) bar;

  // Other fields
}```

Do you mean rename a column `foo` in avro to be `bar` in Pinot? Or have the same column referred to as `foo` as well as `bar` within Pinot?

For the former, you can use transform function to do the mapping during ingestion. Latter is not supported.

Have the same column referred to as `foo` as well as `bar` within Pinot. Old name was `foo` . I’d like to rename it to `bar`  but some other service is still querying using `foo`

<@U01434T1SA2> can you please an issue for this?

<https://github.com/apache/incubator-pinot/issues/5612>