JNSimba opened a new pull request, #11552:
URL: https://github.com/apache/doris/pull/11552
## Problem summary
1.At present, `read_json_by_line` and `fuzzy_parse` are used for json format
writing, and the performance of streamload writing will decrease. It is
modified to `strip_outer_array` and `fuzzy_parse` writing, and the speed is
increased by about 3 times.
2.Add csv writing, the column separator is set to `\x01`, and the row
separator is set to `\x02`, the performance is about 5 times higher than before.
**Performance Testing**
150+ columns of schema, 50,000 pieces of data(180MB+), written using datax's
filereader.
The write of the previous version took 15.4s. The optimized json takes 4.9s,
and the csv writing takes 3.3s
## Checklist(Required)
1. Does it affect the original behavior:
- [ ] Yes
- [x] No
- [ ] I don't know
2. Has unit tests been added:
- [ ] Yes
- [ ] No
- [x] No Need
3. Has document been added or modified:
- [x] Yes
- [ ] No
- [ ] No Need
4. Does it need to update dependencies:
- [ ] Yes
- [x] No
5. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [x] 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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