postgresql - Concatenate multiple arrays in Postgres -


is there way concatenate multiple arrays 1 array in postgres?

for example, this:

array_cat(     array_fill(5, array[4]),     array_fill(2, array[3]),     array_fill(11, array[3]) )

for example, i'd see output of

[5,5,5,5,2,2,2,11,11,11]

use || concatenation operator

select      array_fill(5, array[4]) ||     array_fill(2, array[3]) ||     array_fill(11, array[3])

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