Basic ORM API

[shigma]

type IndexKeys<O, T = any> = string & { [K in keyof O]: O[K] extends T ? K : never }[keyof O]
type TableIndex<T extends TableType> = IndexKeys<Tables[T], string | number>

interface Database {
  get<T extends TableType, K extends TableIndex<T>, F extends string & keyof Tables[T]>(table: T, key: K, value: Tables[T][K][], fields?: readonly F[]): Promise<Pick<Tables[T], F>[]>
  create<T extends TableType>(table: T, data: Partial<Tables[T]>): Promise<Tables[T]>
  update<T extends TableType>(table: T, data: Partial<Tables[T]>[]): Promise<void>
  remove<T extends TableType, K extends TableIndex<T>>(table: T, key: K, value: Tables[T][K][]): Promise<void>
}

[codecov]

Codecov Report

Merging #179 (1d84d6f) into develop (8172dc7) will increase coverage by 0.09%.
The diff coverage is 88.59%.

@@             Coverage Diff             @@
##           develop     #179      +/-   ##
===========================================
+ Coverage    90.91%   91.01%   +0.09%     
===========================================
  Files           54       56       +2     
  Lines        10200    10445     +245     
  Branches      2011     2073      +62     
===========================================
+ Hits          9273     9506     +233     
- Misses         927      939      +12     

Impacted Files	Coverage Δ
packages/plugin-teach/src/update.ts	73.36% <42.85%> (+0.81%)	⬆️
packages/plugin-teach/src/utils.ts	90.04% <45.00%> (-5.14%)	⬇️
packages/plugin-schedule/src/index.ts	95.83% <91.30%> (ø)
packages/koishi-core/src/database.ts	98.62% <100.00%> (+0.09%)	⬆️
packages/koishi-core/src/session.ts	96.11% <100.00%> (+0.86%)	⬆️
packages/koishi-test-utils/src/app.ts	99.03% <100.00%> (-0.97%)	⬇️
packages/koishi-test-utils/src/memory.ts	100.00% <100.00%> (ø)
packages/koishi-utils/src/misc.ts	97.91% <100.00%> (+0.44%)	⬆️
packages/koishi-utils/src/time.ts	100.00% <100.00%> (+6.66%)	⬆️
packages/plugin-schedule/src/database.ts	100.00% <100.00%> (ø)
... and 10 more

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[dragon-fish]

作为上游开发，支持这个想法。但是我对于底层并不十分了解，因此暂时不作进一步的评论。