Call For Participation: implement function push down
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- Dominant language
- C++
- Stars
- 1k
- Forks
- 423
- Avg merge
- 1d 15h
- Merged PRs (30d)
- 24
Description
We need to push down more functions to maximize TiFlash computation power!
Contributions are welcomed! BTW, it's better to file a PR for every single function.
For more details, please refer to our dev guideline
- part 1: https://pingcap.com/zh/blog/10-minutes-become-a-tiflash-contributor.
- part 2: https://pingcap.com/zh/blog/how-to-implement-a-vectorization-function-in-tiflash
operator functions
| func | issue | assignee | pr | progress |
|---|---|---|---|---|
| LeftShift | #5099 | @AnnieoftheStars | #5495 | ✔︎ |
| RightShift | #5100 | @Willendless | #5156 | ✔︎ |
| BitCount | #5101 | @hanzizhao1998 | #5101 | |
| NullEq | #5102 | @JigaoLuo | https://github.com/pingcap/tiflash/pull/6057 |
string functions
| func | issue | assignee | pr | progress |
|---|---|---|---|---|
| Bin | #5103 | @An-DJ | #5246 | ✔︎ |
| Elt | #5104 | @Willendless | #5496 | ✔︎ |
| BitLength | #5105 | @isHuangXin | #6078 | |
| Char | #5106 | @Ziy1-Tan | ||
| HexIntArg/HexStrArg | #5107 | @YangKeao | #5280 | ✔︎ |
| InsertUTF8/Insert | #5108 | @lizhenhuan | ||
| InstrUTF8/Instr | #5109 | @lizhenhuan | #6081 | |
| OctInt/OctString | #5110 | @Ziy1-Tan | #6064 | |
| ReverseUTF8/Reverse | #5111 | @lizhenhuan | #5233 | ✔︎ |
| UnHex | #5112 | @b41sh | #5686 | ✔︎ |
| Space | #5113 | @lizhenhuan | #5239 | ✔︎ |
| Repeat | #5114 | @likzn | #5276 | ✔︎ |
Cast functions
| func | issue | assignee | pr | progress |
|---|---|---|---|---|
| CastTimeAsDuration | #5306 | @AntiTopQuark | #5548 | ✔︎ |
Date/Time functions
| func | issue | assignee | pr | progress |
|---|---|---|---|---|
| GetFormat | #5115 | @wirybeaver | #5269 | ✔︎ |
| TimeToSec | #5116 | @hey-kong | #5235 | ✔︎ |
aggregation functions
| func | issue | assignee | pr | progress |
|---|---|---|---|---|
| Agg_BitOr | #5118 | @RinChanNOWWW | #5293 |
other functions
| func | issue | assignee | pr | progress |
|---|---|---|---|---|
| IsIPv4 | #5120 | @AntiTopQuark | #6773 | ✔︎ |
| IsIPv6 | #5121 | @AntiTopQuark | #6773 | ✔︎ |
23:36:23 UTC+8 Monday, August 15, 2022
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked TiFlash contributor guidelines and select a specific function from the operator, string, cast, date/time, aggregation, or other-functions tables. Check that function's individual issue, assignee, and pull request status before beginning. Done means implementing one function's pushdown support and submitting its own pull request, but much of this umbrella work is already assigned or has linked PRs.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 15/100