dataroaring opened a new pull request, #11372:
URL: https://github.com/apache/doris/pull/11372
When a wide table is read, the 1st batch would be exceed raw_bytes_threshold,
so Scanner should read at least 1 row.
Actually, we should adjust batch size automatically to reduce memoery usage.
# Proposed changes
Issue Number: close #xxx
## Problem Summary:
## 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
- [*] 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...
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