In Ecto 3.5.x version we use null: false in the Ecto schema to create not null column in postgress database.
Now if we use the same in 3.8 the code is not even compiling.
Error stack is something like
** (ArgumentError) invalid option :null for field/3
(ecto 3.8.2) lib/ecto/schema.ex:2214: Ecto.Schema.check_options!/3
(ecto 3.8.2) lib/ecto/schema.ex:1911: Ecto.Schema.field/4
lib/tradeserf/model/oneoff_acct_group.ex:9: (module)
(stdlib 3.17) erl_eval.erl:685: :erl_eval.do_apply/6
(elixir 1.12.3) lib/kernel/parallel_compiler.ex:319: anonymous fn/4 in Kernel.ParallelCompiler.spawn_workers/7
Definition is :
schema “oneoff_acct_group” do
field(:acct_group_id, :string, primary_key: true)
field(:acct_group_nm, :string, null: false)
field(:entity_id, :string)
field(:owner, :string)
timestamps()
end