dennis zhuang
25bca4609f
* perf(promql): propagate matching filters through grouped joins Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * perf(promql): check matcher safety on the receiving operand Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * refactor(promql): spell out the shapes a filter may cross `preserves_filter` ended in `_ => true`, which was only sound because `selector_matchers` independently rejects label rewriting, `count_values`, subqueries and non-rollup calls on the same operand. Loosening the latter alone would have silently pushed a matcher below a label rewrite. List the shapes that carry a scan filter instead and default to `false`. Cite #9207 for the result labels the grouped cases record: the join projects the right operand's tag set, so `zone` is missing wherever the right side aggregates it away. No behavior change. Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * test(promql): assert the new pushdowns reach the scan The grouped-join unit tests feed tag columns by hand and the SQLness case only checks results, which are identical whether or not the rewrite fires. Nothing would have failed if scalar arithmetic, ranking or grouped matching stopped propagating. Assert through the planner that the matcher reaches both scans, with a global topk one-side as the counter-example. Also state that the duplicate-one-side cases record a cross product Prometheus rejects (#9209), so the baseline is not read as intended semantics. Signed-off-by: Dennis Zhuang <killme2008@gmail.com> --------- Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
Sqlness Test
Sqlness manual
Case file
Sqlness has two types of file:
.sql: test input, SQL only.result: expected test output, SQL and its results
.result is the output (execution result) file. If you see .result files is changed,
it means this test gets a different result and indicates it fails. You should
check change logs to solve the problem.
You only need to write test SQL in .sql file, and run the test.
Case organization
The root dir of input cases is tests/cases. It contains several subdirectories stand for different test
modes. E.g., standalone/ contains all the tests to run under greptimedb standalone start mode.
Under the first level of subdirectory (e.g. the cases/standalone), you can organize your cases as you like.
Sqlness walks through every file recursively and runs them.
Kafka WAL
Sqlness supports Kafka WAL. You can either provide a Kafka cluster or let sqlness to start one for you.
To run test with kafka, you need to pass the option -w kafka. If no other options are provided, sqlness will use conf/kafka-cluster.yml to start a Kafka cluster. This requires docker and docker-compose commands in your environment.
Otherwise, you can additionally pass the your existing kafka environment to sqlness with -k option. E.g.:
cargo sqlness bare -w kafka -k localhost:9092
In this case, sqlness will not start its own kafka cluster and the one you provided instead.
Run the test
Unlike other tests, this harness is in a binary target form. You can run it with:
cargo sqlness bare
It automatically finishes the following procedures: compile GreptimeDB, start it, grab tests and feed it to
the server, then collect and compare the results. You only need to check if the .result files are changed.
If not, congratulations, the test is passed 🥳!