> When LLAP Execution Mode is set to 'only' you can't have a macro and
window function in the same select statement.
The "only" part isn't enforced for the simple select query, but is enforced
for the complex one (the PTF one).
> select col_1, col_2 from macro_bug where otrim(col_1) is not null;
That becomes a non-LLAP case, because macro_bug is so small - to trigger
this issue for that query, force it through the Llap decider.
set hive.fetch.task.conversion=none;
I know that's not entirely helpful here, but the point is that the macros
are not expanded in Hive at compile-time.
Filter Operator
predicate: otrim(col_1) is not null (type: boolean)
is what I get in the plan, which LLAP recognizes as a "temporary function".
The actual expansion is actually evaluated at runtime by GenericUDFMacro,
not expanded by the compiler.
If you're 100% sure the temporary function will work, you can take off the
safety rails and try with
set hive.llap.skip.compile.udf.check=true;
which will just let LLAP plan deserialization figure out if has the
necessary classes/fail (& not care about the "name" of the UDF).
Cheers,
Gopal
