Spanner ParseDDL doesn't like when I use SELECT STRUCT in the Subquery

Question

I'm trying to create a Spanner View using spanner go client.

when I use spanner/spansql.ParseDDL.

SELECT
 ARRAY_AGG(STRUCT(firstName, lastName, phone_number)
    ) AS user_info

Error: got "(" while expecting ")"

But if i just copy and paste this into Spanner Studio in google cloud console, no problem

go version go1.20.4 darwin/arm64

spanner client version: v1.59.0

I tried different spanner client versions and no luck.