Using query as a text join

A few days ago I reach the limit of 50000 characters in one cell, I found a solution with "query" but I need a delimiter inside the formula that I haven't been able to find:

This is the formula:

=arrayformula(query(Sort!A2:A,,10000000))

as an example I used this A, B and C

with =TEXTJOIN("|",TRUE,arrayformula(A2:A)) I get:

A|B|C

but with =arrayformula(query(A2:A,,10000000)) I get:

A B C

How can I make the delimiter?