Type Alias From<DB, TE>

From: DrainOuterGeneric<
    {
        [C in keyof DB
        | ExtractAliasFromTableExpression<DB, TE>]: C extends ExtractAliasFromTableExpression<
            DB,
            TE,
        >
            ? ExtractRowTypeFromTableExpression<DB, TE, C>
            : C extends keyof DB ? DB[C] : never
    },
>