4paradigm / 4paradigm/OpenMLDB
feat(ResultSetBuilder): construct `ResultSet` directly from client, support all basic data type
- 主要言語
- C++
- スター
- 1.7k
- フォーク
- 331
- 平均マージ
- 12日 12時間
- マージ済み PR(30日)
- 1
説明
**Is your feature request related to a problem? Please describe.**
There are three ways to construct a `ResultSet`, https://github.com/4paradigm/OpenMLDB/blob/420398b8349880bce262db06c3b143d023b56862/src/sdk/result_set_sql.h#L45-L56, the first two approach rely on protobuf structures, and the third approach assume all fields as string.
So there is no ease way to construct a `ResultSet` from scratch. E.g. I'd like to construct a `ResultSet` with the schema of `id int, buf string, ts timestamp`, and assert result set data in unit tests.
**Describe the solution you'd like**
TBD
An example (may not accurate):
```cpp
ResultSetBuilder()
.schema(schema)
.data(rows)
.build();
```
**other context**
hybridse's test use `Row` to assert test results: https://github.com/4paradigm/OpenMLDB/blob/420398b8349880bce262db06c3b143d023b56862/hybridse/include/codec/row.h#L36-L38. Let's see if we can reuse few or more
コントリビューションガイド
調査の方向性
Review the existing ResultSet constructors in src/sdk/result_set_sql.h and the Row class in hybridse/include/codec/row.h. Understand the schema representation and data types (int, string, timestamp). Design a builder API that can create a ResultSet directly from a schema and rows of data, then implement it in the C++ SDK.
索引モデルが issue の本文から書いたものです。
評価
- 技術スタック
- cpp
- 領域
- database, testing
- issue の種類
- 機能追加
- 難易度
- 4/5
- 見積もり時間
- 3〜5日
- 活発さ
- 停滞
- 明瞭さ
- おおむね明確
- 初心者へのやさしさ
- 45/100