Github user mattyb149 commented on the issue:
https://github.com/apache/nifi/pull/952
It's a real bummer that an ANSI "standard" such as MERGE is done
differently by so many databases :( If there isn't an application of the
standard MERGE syntax that applies to many databases (or the functionality is
desired for DBs that don't support the standard), then I like Bryan's
suggestion of using the DatabaseAdapter interface. We could add a method such
as getMergeStatement() to DatabaseAdapter, with no-op (or exception-throwing)
default implementation (on the interface or the subclasses), then implement for
Oracle (which has a DatabaseAdapter already) and add a TeradataDatabaseAdapter
subclass to implement their version of the syntax. Thoughts?
Also, it sounds like the community is gearing up for a 1.1.0 release soon,
do you think you'd have any updates ready in the near-term? If not (which is
totally fine btw), could we push the Fix Version for the Jira to 1.2.0?
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