feat(backend): use jsonb instead of composite type arrays

scripts/migrate/006_jsonb_arrays.sql

@@ -0,0 +1,24 @@
+-- +migrate Up
+
+-- 2023-03-11: Change composite type arrays to use jsonb columns
+-- Composite types aren't actually supported by pgx and this allows us to drop pggen as a dev dependency.
+
+-- Delete old columns
+alter table users drop column names;
+alter table users drop column pronouns;
+
+alter table members drop column names;
+alter table members drop column pronouns;
+
+alter table user_fields drop column entries;
+alter table member_fields drop column entries;
+
+-- Create new columns
+alter table users add column names jsonb not null default '[]';
+alter table users add column pronouns jsonb not null default '[]';
+
+alter table members add column names jsonb not null default '[]';
+alter table members add column pronouns jsonb not null default '[]';
+
+alter table user_fields add column entries jsonb not null default '[]';
+alter table member_fields add column entries jsonb not null default '[]';