RisingWave Stream Engine

Read Stream Engine for more details about architecture.

Writing executor tests

It's recommended to use expect_test to write new tests, which can automatically update the expected output for you. See check_until_pending 's doc and its usage for more details.

It's recommended to write new tests as integration tests (i.e. in tests/ directory) instead of unit tests (i.e. in src/ directory). See #9878 for more details.