Different result of length(binary) between gluten and vanilla

[taiyang-li]

set spark.gluten.enabled=false;
select length(binary(id)) from range(10);  // returns 8

set spark.gluten.enabled=true;
select length(binary(id)) from range(10);  // returns 1

[taiyang-li]

Another issue: cast(x as String) and cast(x as Binary) has different behaviors in Spark, but they are all translated to toString(x) in CH

Actually:

• cast(x as String) -> toString(x)
• cast(x as Binary) -> reinterpreteAsString(x)