PostgreSQL/Array/array prepend
array_prepend(1, ARRAY[2,3])
<source lang="sql">
postgres=# SELECT array_prepend(1, ARRAY[2,3]);
array_prepend
[0:2]={1,2,3}
(1 row) postgres=#
</source>
<source lang="sql">
postgres=# SELECT array_prepend(1, ARRAY[2,3]);
array_prepend
[0:2]={1,2,3}
(1 row) postgres=#
</source>