Mats Kindahl 2cf3af1eb6 Fix dist_hypertable test for parallel execution
Change database names to be unique over the test suite by adding the
test database name in front of the created database names in the test.
This will allow the test to be executed in parallel with other tests
since it will not have conflicting databases in the same cluster.

Previously, there were a few directories created for tablespaces, but
this commit changes that to create one directory for each test where
the tablespace can be put. This is done by using a directory prefix for
each tablespace and each test should then create a subdirectory under
that prefix for the tablespace. The commit keeps variables for the old
tablespace paths around so that old tests work while transitioning to
the new system.
2020-10-21 15:28:58 +02:00
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