discord9anddiscord9
983738101a
Incremental batching flows already merge sink state for scalar aggregates and the HLL/UDDSketch/stddev state families. AVG now exposes a mergeable Binary state (avg_state / avg_merge with __avg_state_delta_merge), so admit those aggregates too instead of forcing a full snapshot for flows whose only state column is an average. merge_op_for_aggregate_expr takes the aggregate input schema so the avg_merge arm can require a Binary state argument; the state form is the aggregate result persisted by the sink, so no extra coercion is needed. Other input types keep being rejected. Also cover avg_state, avg_merge and duplicate AVG projections in the incremental plan analysis tests, extend the mixed state-family rewrite test with an average column, and extend the standalone partitioned state-merge SQLness case with avg_state/avg_merge compared against a direct avg over the source. Signed-off-by: discord9 <discord9@outlook.com> Co-authored-by: discord9 <discord9@outlook.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 🥳!