The hypertable_compression test had on implicit reliance on the
ordering of tuples when querying the materialized results.
This patch makes the ordering explicit in this test.
When restoring a database, people would encounter errors if
the restore happened after telemetry has run. This is because
a 'exported_uuid' field would then exist and people would encounter
a "duplicate key value" when the restore tried to overwrite it.
We fix this by moving this metadata to a different key
in pre_restore and trying to move it back in post_restore.
If the restore create an exported_uuid, that restored
value is used and the moved version is simply deleted
We also remove the error redirection in restore so that errors
will show up in tests in the future.
Fixes#1409.
Adds several test features:
- Add a tests on compression of an altered hypertable
- Adds tests for transparent decompression in hypertables tests
- Add dump/restore in hypertable test
This rebuilds indexes during compression and decompression. Previously,
indexes were not updated during these operations. We also fix
a small bug with orderby and segmentby handling of empty strings/
lists.
Finally, we add some more tests.
