append jsonb array to another jsonb array

[Joao Miguel Ferreira <joao.miguel.c.ferreira@xxxxxxxxx>]

Hello all,

I PL/pgSQL I have a few jsonb variables (instantiated each with an array of objects) and I need to append them to produce the final result. All of them are  small in size (max 30 each). We are using Pg 11.

Example:

a = [ x, y ]

b = [ z , w ]

result would be [ x, y, z, w ]

What would you consider to be a suitable approach ?

thanks

João