Vertica comes with a User Defined Load function that takes a URL as a
load source. This can be used to load files that are stored in Swift. As
this is a common use case, it is valuable to enable this by default.
This can be done in the post-prepare method for Vertica. A new UDL_LIBS
list has been added that describes any UDLs to be loaded into the
database. This change only has one entry - the curl function.
Change-Id: I0d03f509629298e68f2a2b83bb061e3c27b949ef
Depends-On: Icb7d9b1551124a700ad767eeba10be939ffa9aaa
Closes-Bug: #1531510
2a43f0fda0