XieJiann opened a new pull request, #14847:
URL: https://github.com/apache/doris/pull/14847
Signed-off-by: xiejiann <jianx...@gmail.com>
# Proposed changes
Issue Number: close #xxx
For different project operators, we
1. If it's a simple expression for column pruning, w ignore it
2. If it's an alias that may be used in the join operator, we need to
add it to the graph
3. If it's another expression, we can ignore them and add it after
optimizing
4. If it's a project only associated with one table, it's seen as an
endNode just like a table
## Problem summary
In DPHyp, we must process the project operator above the join to avoid
constructing multiple join clusters.
## Checklist(Required)
1. Does it affect the original behavior:
- [ ] Yes
- [ ] No
- [ ] I don't know
2. Has unit tests been added:
- [ ] Yes
- [ ] No
- [ ] No Need
3. Has document been added or modified:
- [ ] Yes
- [ ] No
- [ ] No Need
4. Does it need to update dependencies:
- [ ] Yes
- [ ] No
5. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [ ] No
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you
chose the solution you did and what alternatives you considered, etc...
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org
For additional commands, e-mail: commits-h...@doris.apache.org
