Re: Compressed TOAST Slicing

On March 12, 2019 6:58:12 PM PDT, Michael Paquier <michael@paquier.xyz> wrote:
>On Tue, Mar 12, 2019 at 11:08:15AM -0700, Paul Ramsey wrote:
>>> On Mar 12, 2019, at 9:45 AM, Paul Ramsey <pramsey@cleverelephant.ca>
>wrote:
>>> I was going to say that the function is only used twice in the code
>>> base, but I see it’s now used four times. So maybe leave the old
>>> signature in place and add the new one for my purposes after
>>> all. Though with only four internal calls, I am guessing Michael is
>>> more concerned about external users than with internal ones?
>
>Yes, external tools are the part I worry about.  It is better to avoid
>breaking compatibility if there are workarounds we can apply.  Now I
>agree that this particular one may not be the most used ever in the
>community ecosystem.
>
>> So…
>> - two signatures?
>> - old signature but reduced error checking?
>> - elephant?
>
>I have not looked at how much effort it would be to keep the current
>API and still make the slicing happy, sorry ;p
>
>One way to sort things out would be to have a new _extended() API
>layer which is able to take a set of custom flags with one extra
>argument, using bits16 for example.  This way, your new option becomes
>a flag in an extensible set, and we don't need to worry about breaking
>the API again in the future if more options are added.

I don't think this is even close to popular enough to incur the maybe of a separate function / more complicated
interface.By this logic we can change basically no APIs anymore. 
--
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