| From: | Chapman Flack <chap(at)anastigmatix(dot)net> |
|---|---|
| To: | Ildar Musin <i(dot)musin(at)postgrespro(dot)ru>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com> |
| Cc: | Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: MAP syntax for arrays |
| Date: | 2018-05-08 13:51:40 |
| Message-ID: | 243a499e-5256-9128-9f99-d942dbaea888@anastigmatix.net |
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| Lists: | pgsql-hackers |
On 05/08/2018 09:19 AM, Chapman Flack wrote:
>
> While PostgreSQL certainly has extensions to and divergences from
> standard SQL syntax, some historical and some recent, it seems like
> there ought to be a highish bar for adding new ones; or, looking at it
> another way, has this feature been proposed to the SQL committee?
> It doesn't sound like a bad idea, and supporting new syntax for it
> would be an easier call it if it were known to be in an SQL draft
> somewhere.
There seems to have been some work at Databricks adding higher-order
function syntax to their SQL; they've chosen the name 'transform'
for 'map', and also provided 'exists', 'filter', and 'aggregate'.
-Chap
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