Re: Query tool data grid - Infinite scroll vs Pagination

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From: Gus Spier <[email protected]>
To: Edson Richter <[email protected]>
Cc: [email protected] <[email protected]>
Cc: pgadmin-hackers <[email protected]>
Subject: Re: Query tool data grid - Infinite scroll vs Pagination
Date: Sat, 3 Aug 2024 08:32:33 -0400
Message-ID: <CAG8xnicRwc5JyCBHgsDi-kD5w-AYBt86-C-yQeZBmuYjsy1Lmg@mail.gmail.com> (raw)
In-Reply-To: <CPVP215MB18231B703A8AAA097C74D49FCFB32@CPVP215MB1823.LAMP215.PROD.OUTLOOK.COM>
References: <CAM9w-_mJkHpqE2BSdBsLqOVO4ARaWPDXZGYb5Hn3eMh+sDcOrg@mail.gmail.com>
	<CA+OCxozbRmSmRytM2_4_gNvbpqrX0fEyfFVzYPVWH8ftxHchrQ@mail.gmail.com>
	<CAM9w-_n6Eo2SBPMjF-SD1NoWD7_RkhKk+=bPC4sYf3QYOP1wog@mail.gmail.com>
	<CAM9w-_n2zyK-fGYKedi59Z_t3-6LTfZeD0_Bgz4EWXhrS6=Zuw@mail.gmail.com>
	<CANVC+REpfUds0p7intQAwg64=NDk=TQK4HYjri68sy1QqKKDWg@mail.gmail.com>
	<CAAj2gHxghgC1Q7XyyzprNjxuXkLJ3_OZH83dN6w33sXOQEyO3A@mail.gmail.com>
	<CAM9w-_n+Bw_LULacX9CSDzdUK4Rm0QgqnpThiAa53W-0rqV0pg@mail.gmail.com>
	<CAM9w-_mWgZZJskhxr7p3ABvDwdEM=FfGPKfkuBK8jom7wuzrVQ@mail.gmail.com>
	<CPVP215MB18231B703A8AAA097C74D49FCFB32@CPVP215MB1823.LAMP215.PROD.OUTLOOK.COM>

I like the idea of gmail behavior.

Regards,

Gus Spier

On Sat, Aug 3, 2024 at 5:45 AM Edson Richter <[email protected]>
wrote:

> Love it!
> I believe the Gmail behavior is a good approach.
>
> Regards,
>
> ER
>
>
> Obter o Outlook para Android <https://aka.ms/AAb9ysg;
> ------------------------------
> *From:* Aditya Toshniwal <[email protected]>
> *Sent:* Friday, August 2, 2024 3:53:33 AM
> *To:* pgadmin-hackers <[email protected]>
> *Cc:* Usman Khan <[email protected]>; pgAdmin Support <
> [email protected]>; Dave Page <[email protected]>; Dave
> Caughey <[email protected]>
> *Subject:* Re: Query tool data grid - Infinite scroll vs Pagination
>
>
> Hi Hackers,
>
>
> I have come up with the following design, which allows:
>
> 1. Adjust the range of rows visible, aka Window.
>
> 2. Jump to a page number directly based on rows window size.
>
> 3. Pagination buttons to move forward and backward.
>
>
> My question is, how should "select all" behave now? Previously we used to
> fetch all the rows when select all was clicked which actually slowed down
> as it took time for large data.
>
> Maybe add a new button to virtually "Select All Rows".
>
>
> [image: image (15).png]
>
>
>
> On Tue, Jul 2, 2024 at 6:16 PM Aditya Toshniwal <
> [email protected]> wrote:
>
> Thank you Dave and others for your valuable feedback.
> We'll try to achieve what is best for the users.
>
> On Tue, Jul 2, 2024 at 5:46 PM Dave Caughey <[email protected]> wrote:
>
> I think there's a nice blend between pagination and infinite scrolling.
>
> The problem with the *current *infinite scrolling implementation is that
> the scroll baris scaled to the number of *rendered* rows, so as you scroll
> down (which renders another bunch of records), it keeps rescaling the
> scrollbar, so to get the next "page", you have to continually move to the
> scrollbar (as Aditya says, "*Many users who want access in between rows
> or last row struggle to do it as the user has to scroll and scroll.*")
>
> If instead the scrollbar were scaled to the total number of rows, (e.g.,
> 1000 rather than the initial 25 rows that were rendered), then clicking
> (say) in the lower third of the scrollbar would would do enough
> fetching/rendering to display rows 601-625 (or such).  Problem solved.
>
> Alternatively (or additionally), provide a "jump to row..." button
> (similar to what Usman is suggesting re pagination) that gives the user
> control to see a specific bunch of records quickly.
>
> But if the issue is that people don't like infinite scrolling because "the
> user has to scroll and scroll", then fix that specific UE issue, and people
> will be happy.
>
> The concern I have with a paginated solution is if the page represents the
> maximum number of rows rendered in the results pane, at any one time.
> Assume I can see 25 rows in the result pane.  I.e., you show rows 1-25 for
> the first page, then you *only *show rows 26-50 for the second page, then *only
> *show rows 27-50, etc. But when there is a cluster of records of interest
> between rows 640 and 655, then those records of interest are going to be
> spread between pages 25 and 26, and will constantly require flipping back
> and forth between pages.  This would be possibly worse UE than the current
> "user has to scroll and scroll" issue.  On the other hand, if
> your pagination solution includes letting someone nudge the rendered rows
> up or down a bit so that I can see rows 640-655 all at once (e.g., there's
> a field where I can type in that the current page should start at row 635,
> so I can see rows 640-655 all together), then I'm fine with that.
>
> However, if ultimately you decide to toss out infinite scrolling for
> pagination, then please make the (default?) page size be the number of rows
> you can actually see in the result pane, rather than some arbitrary number
> (e.g., 50).  Having the page size equal to the number of rendered rows
> means I can quickly step through the pages and hopefully notice a record of
> interest.... If the page size is larger than the number of rendered rows,
> then as I step to the next page I *still *have to scroll down to see the
> last few rows, then step to the next page, then scroll down again,  I.e.,
> that would be hideous UE!
>
> So my vote preferences are:
>
> First choice: keep infinite scrolling, but simply fix the scrollbar
> scaling and/or give the user the means to quickly jump down by a page or to
> a specific page
> Second choice: use pagination, but *only *if there's the ability to see a
> specific chunk of records on a single page (rather than spread across two),
> and make the pagination size default to the number of records visible given
> the height of the result pane
>
> Cheers,
> Dave
>
>
> On Mon, 1 Jul 2024 at 04:35, Usman Khan <[email protected]> wrote:
>
> Hi Aditya
> I vote for pagination, it would really be helpful for end users.
> In addition to giving the user the ability to set page size, if he can
> also select or enter what page he can jump to say 501, 990 etc it would be
> helpful.
>
> On Fri, Jun 28, 2024 at 3:44 PM Aditya Toshniwal <
> [email protected]> wrote:
>
> Hi,
>
> Unfortunately, there were only 3 responses to this.
> In that case, we will discuss internally and decide what to do.
>
> On Thu, Jun 20, 2024 at 2:46 PM Aditya Toshniwal <
> [email protected]> wrote:
>
> Hi Everyone,
>
> Request you to share your opinion on this and respond on:
>
> https://docs.google.com/forms/d/e/1FAIpQLSdfJhNK8qXSe9mKcubZa8jjjYl0hiZVxhv6GGJo8WJcYc27ug/viewform?...
>
> On Thu, Jun 20, 2024 at 1:36 PM Dave Page <[email protected]> wrote:
>
> Hi
>
> On Wed, 19 Jun 2024 at 13:42, Aditya Toshniwal <
> [email protected]> wrote:
>
> Hi Hackers,
>
> Query tool data grid currently pulls the data on load basis in batches.
> For example, it will initially load only 1000 rows and once a user scrolls
> to the 1000th row, it will fetch the next batch of 1000.
> Many users who want access in between rows or last row struggle to do it
> as the user has to scroll and scroll. If someone grabs the scroller and
> pulls it down still it will be a good UX and the scrollbar may jump. One
> reported here - https://github.com/pgadmin-org/pgadmin4/issues/1780
> One more aspect to this is the in memory data of the query tool which keep
> on increasing on each scroll, it affects the performance.
>
> I propose we should use pagination instead of infinite scroll with the
> following advantages:
> 1. Users can jump to any page they want.
> 2. Users can change the page size on the grid directly.
> 3. Memory will be used only for visible rows so performance improvement.
> 4. Predictable UI, no jumping scrollbars.
>
> Let me know what you think.
>
>
>
> I think there are definite benefits, but there is the downside of having
> to scroll and click to browse results. Personally I'm fine with that, but I
> think you should probably poll pgadmin-support for opinions from more users.
>
> --
> Dave Page
> pgAdmin: https://www.pgadmin.org
> PostgreSQL: https://www.postgresql.org
> EDB: https://www.enterprisedb.com
>
>
>
> --
> Thanks,
> Aditya Toshniwal
> pgAdmin Hacker | Sr. Software Architect | *enterprisedb.com*
> <https://www.enterprisedb.com/;
> "Don't Complain about Heat, Plant a TREE"
>
>
>
> --
> Thanks,
> Aditya Toshniwal
> pgAdmin Hacker | Sr. Software Architect | *enterprisedb.com*
> <https://www.enterprisedb.com/;
> "Don't Complain about Heat, Plant a TREE"
>
>
>
> --
> Thanks,
> Aditya Toshniwal
> pgAdmin Hacker | Sr. Software Architect | *enterprisedb.com*
> <https://www.enterprisedb.com/;
> "Don't Complain about Heat, Plant a TREE"
>
>
>
> --
> Thanks,
> Aditya Toshniwal
> pgAdmin Hacker | Sr. Software Architect | *enterprisedb.com*
> <https://www.enterprisedb.com/;
> "Don't Complain about Heat, Plant a TREE"
>


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