THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
Status
Current state: "Under Discussion" Accepted
Discussion thread: https://lists.apache.org/thread/5xywxv7g43byoh0jbx1b6qo6gx6wjkcz
Vote thread: https://lists.apache.org/thread/bsgqvvs9wx1dkv7p3m9ctockh84rl11j
JIRA:
JIRA: TBDJira server ASF JIRA serverId 5aa69414-a9e9-3523-82ec-879b028fb15b key FLINK-30650
Released: <Flink Version>1.17.0
Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).
...
Q: What is the relationship between PLAN_ADVICE, CHANGELOG_MODE, and ESITMATED_COSTSCOST? Can I explain all of those together? What will the result look like?
A: PLAN_ADVICE is another kind of explain detail towards CHANGELOG_MODE and ESTIMATED_COSTSCOST. Users can choose to explain multiple details at the same time.
| Code Block | ||||||||
|---|---|---|---|---|---|---|---|---|
| ||||||||
EXPLAIN PLAN_ADVICE, CHANGELOG_MODE, ESTIMATED_COSTSCOST <query> |
Q: Why propose this feature in the community? It sounds more suitable for the platform side to implement.
...
The relationship between them and the corresponding SQL-processing phase is illustrated below. Stream Graph is first excluded because we want to limit this analysis within the compile time. And from this Fig, we can tell that optimized rel is the closest to the original query.
