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Re: Converting row elements into a arrays?

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On 3/2/23 15:45, Rob Sargent wrote:
On 3/2/23 13:58, Ron wrote:
Postgresql 12.13

Given the sample below, I'm looking for how to generate this output.  It's like GROUP BY, but generating an array instead of an aggreate number.
 f1 | f2_array
----+---------
1 | {1,2,3}
  2 | {1,2,3,4}
  3 | {1,2}

The ultimate goal is to somehow use pg_index.indkey to get column names from pg_attribute.

create table foo (f1 int, f2 int);
insert into foo values (1, 1);
insert into foo values (1, 2);

[snip]

In which environment are you accessing that array?  psql only?

Correct.

--
Born in Arizona, moved to Babylonia.





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