-
### What did you do?
1. There are five changefeed (Kafka sink, simple protocol) running, each replicating a subset of the tables.
2. At first there are workload running for all the changefeed, cdc l…
-
If the GROUP BY key is simple (one or several fixed-size columns)
and if there is one simple aggregate function (with state up to 8 bytes),
if during aggregation the thread-local hash table exceed…
-
Abigail Russell (amruss) commented:
Hash sharded indexes, regional by row tables, etc.
* the compound key comes through the changefeed
* changes to key cause delete/insert
* causes backfill of tabl…
-
Title: djb2CaseInsensitiveHash may cause excessive probing with Abseil hash tables
Description: My colleagues who implemented the Abseil containers (@fowles and @sbenzaquen) mentioned that [djb2Cas…
-
Unlike the `equalp` operator, the order in which keys are inserted seems to affect `equals`. Is this desired behavior or a bug?
```
CL-USER> (defvar a (make-hash-table))
A
CL-USER> (defvar b (ma…
-
## Resources
- https://ieeexplore.ieee.org/document/7113370
## Summary
256-way radix tree の ART と Judy array を比較,さらに Cuckoo hashing 等の現代的なハッシュとも比較.ART と Juddy の間にトレードオフが存在すること,範囲クエリを除くほとんどのクエ…
-
### Is your feature request related to a problem or challenge?
_No response_
### Describe the solution you'd like
_No response_
### Describe alternatives you've considered
_No response_
### Addi…
-
## 📌 개요
- `시간`: 2023-08-01(화) 21:00
- `자료`: [7강 Hash Tables](https://youtu.be/9yUlSabzVwQ)
- `참여자`: 펭귄, 그루트, 렉사, 나강
## ✍️ 준비
아래 양식을 복사해 스터디 준비를 완료해주세요!
```markdown
## 💬 생각
- ...
…
-
-
### Current Behaviour
Currently, we have the possibility of working with the content of several of the dbcs, in SQL format. However, when extracting the data, and wanting to add it to the DBC, in t…