| From: | Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk> |
|---|---|
| To: | Charles Cui <charles(dot)cui1984(at)gmail(dot)com> |
| Cc: | Aleksander Alekseev <a(dot)alekseev(at)postgrespro(dot)ru>, Aleksandr Parfenov <a(dot)parfenov(at)postgrespro(dot)ru>, Anastasia Lubennikova <a(dot)lubennikova(at)postgrespro(dot)ru>, Andrey Borodin <x4mmm(at)yandex-team(dot)ru>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [GSoC] array processing questions |
| Date: | 2018-06-24 00:44:19 |
| Message-ID: | 87o9g1ow0t.fsf@news-spur.riddles.org.uk |
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| Lists: | pgsql-hackers |
>>>>> "Charles" == Charles Cui <charles(dot)cui1984(at)gmail(dot)com> writes:
Charles> Hi mentors and hackers,
Charles> One question about array processing in postgresql. Assume
Charles> my input is a Datum (which contains an array). Are there any
Charles> examples to loop through the array and operates on each
Charles> element? feel like it is not that straight-ford.
See array_iter_setup and array_iter_next
--
Andrew (irc:RhodiumToad)
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