Re: string_to_array, array_to_string function without separator
| От | Pavel Stehule |
|---|---|
| Тема | Re: string_to_array, array_to_string function without separator |
| Дата | |
| Msg-id | CAFj8pRC-ZrhuJFfwvzGR3=ui7A2avVPffqQQ2h4TLZbt-5ZxaQ@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: string_to_array, array_to_string function without separator (David Fetter <david@fetter.org>) |
| Ответы |
Re: string_to_array, array_to_string function without separator
|
| Список | pgsql-hackers |
pá 15. 3. 2019 v 15:03 odesílatel David Fetter <david@fetter.org> napsal:
On Fri, Mar 15, 2019 at 05:04:02AM +0100, Pavel Stehule wrote:
> Hi
>
> I propose mentioned functions without specified separator. In this case the
> string is transformed to array of chars, in second case, the array of chars
> is transformed back to string.
>
> Comments, notes?
Whatever optimizations you have in mind for this, could they also work
for string_to_array() and array_to_string() when they get an empty
string handed to them?
my idea is use string_to_array('AHOJ') --> {A,H,O,J}
empty input means empty result --> {}
As to naming, some languages use explode/implode.
can be, but if we have string_to_array already, I am thinking so it is good name.
Best,
David.
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778
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