Add permission check for MERGE/SPLIT partition operations
Currently, we check only owner permission for the parent table before
MERGE/SPLIT partition operations. This leads to a security hole when users
can get access to the data of partitions without permission. This commit
fixes this problem
Skip citext_utf8 test on Windows.
On other Windows build farm animals it is already skipped because they
don't use UTF-8 encoding. On "hamerkop", UTF-8 is used, and then the
test fails.
It is not clear to me (a non-Windows person looking only at buildfarm
evidence) whether Windows is less
injection_points: Store runtime conditions in private area
This commit fixes a race condition between injection point run and
detach, where a point detached by a backend and concurrently running in
a second backend could cause the second backend to do an incorrect
condition check. This issue
Introduce private data area for injection points
This commit extends the backend-side infrastructure of injection points
so as it becomes possible to register some input data when attaching a
point. This private data can be registered with the function name and
the library name of the callback
