Commit Graph

8 Commits

Author SHA1 Message Date
Jinqing Kuang ac23a4fc55
feat(stream): support stream processing for virtual tables (#30144)
* enh: add client processing

* enh: add mnode vtables processing

* enh: add mnode vtable processing

* enh: add normal child vtable support

* fix: compile issues

* fix: compile issues

* fix: create stream issues

* fix: multi stream scan issue

* fix: remove debug info

* fix: agg task and task level issues

* fix: correct task output type

* fix: split vtablescan from agg

* fix: memory leak issues

* fix: add limitations

* Update 09-error-code.md

* Update 09-error-code.md

* fix: remove usless case

* feat(stream): extract original table data in source scan task

Implemented functionality in the source task to extract data
corresponding to the virtual table from the original table using WAL.
The extracted data is then sent to the downstream merge task for further
processing.

* feat(stream): multi-way merge using loser tree in virtual merge task

Implemented multi-way merge in the merge task using a loser tree to
combine data from multiple original table into a single virtual table.
The merged virtual table data is then pushed downstream for further
processing.  Introduced memory limit handling during the merge process
with configurable behavior when the memory limit is reached.

* fix(test): remove useless cases

---------

Co-authored-by: dapan1121 <wpan@taosdata.com>
Co-authored-by: Pan Wei <72057773+dapan1121@users.noreply.github.com>
2025-03-15 17:06:48 +08:00
Shengliang Guan 03627a142d fix: ci errors 2024-12-10 11:57:05 +00:00
Jing Sima a249bef104 feat:[TS-4893] Add random and support use min/max on string column. 2024-09-09 18:48:24 +08:00
Shungang Li f5f84c3cc6 feat: (errcode) ttime.c 2024-07-23 09:13:42 +08:00
Haojun Liao dc1ea9f9a1 fix(stream): clear htask info when unregistering the task. 2024-01-24 16:23:47 +08:00
fullhonest e79516ade3 Fix TD-27939: error for sub query is empty when where 1=2 2024-01-02 10:02:30 +08:00
wangjiaming0909 cf158ab428 feat: support all utf8 characters as alias 2023-10-27 15:23:26 +08:00
“happyguoxy” 60a6f733fd test: refine query cases 2023-04-24 10:30:10 +08:00