I have data that is already sorted by primary keys, which I want to load to vertica. Is there anyway to specify that the data is already sorted so that Vertica can make use of that information to make the loads more efficient?

There seems to be thread-safety issues while invoking python within C++ UDF's especially when the python code calls numpy or pandas. It turns out numpy and pandas aren't inherently thread-safe. As a consequence, scalar UDF's invoking the python code fail, and also it appears only one transform UDF c...