On Thu, Nov 5, 2020, 6:52 AM Yambu <hyambu(at)gmail(dot)com> wrote:
> What disadvantage does a large table (30mil records) has over a small
> table about 20k records when it comes to querying using an indexed column?
>
Table with 20k rows will likely fit entirely into shared_buffers and not
involve any disk i/o for its use.
>