We had 10.1.5, 10.0.7, and 9.5.11 in the changelog, but those versions
are already used in enterprise repository. This commit skips those
versions and uses 10.1.6, 10.0.8, and 9.5.12 instead to prevent clashes.
We plan to have a series of backport releases. This PR contains separate
commits for each patch version for 11.2 to 9.5 major versions. We plan
to cherry pick each commit to relevant release branches and hence the
need to have separate commits for each version.
In #6814 we started using the Python test runner for upgrade tests in
run_test.py, instead of the Perl based one. This had a problem though,
not all tests in minimal_schedule can be run with the Python runner.
This adds a separate minimal schedule for the pg_upgrade tests which
doesn't include the tests that break with the Python runner.
This PR also fixes various other issues that came up while testing
the upgrade tests.
- Query generator is used to create queries, allowed by the grammar which is documented at `query_generator/query_gen.py` (currently contains only joins).
- This PR adds a CI test which utilizes the query generator to compare the results of generated queries that are executed on Citus tables and local (undistributed) tables. It fails if there is an unexpected error at results. The error can be related to Citus, the query generator, or even Postgres.
- The tool is configured by the file `query_generator/config/config.yaml`, which limits table counts at generated queries and sets many table related parameters (e.g. row count).
- Run time of the CI task can be configured from the config file. By default, we run 250 queries with maximum table count of 40 inside each query.