Type Alias MergeInto<DB, TE>

MergeInto: [TE] extends [keyof DB]
    ? MergeQueryBuilder<DB, ExtractTableAlias<DB, TE>, MergeResult>
    : [TE] extends [`${infer T} as ${infer A}`]
        ? T extends keyof DB
            ? MergeQueryBuilder<DB & ShallowRecord<A, DB[T]>, A, MergeResult>
            : never
        : never