Create COMPOSITE types (Postgres)

[tyt2y3]

What I'm trying to do:

CREATE TYPE my_composite_struct AS (code_type TEXT, reference_code INT);
CREATE TABLE demo_tb (id SERIAL PRIMARY KEY, composite_field my_composite_struct);

I couldn't find any way to do this in my migrations. What I need is a (rough) equivalent of how we create enum types in the following code, but instead for creating composite types:

use sea_orm_migration::prelude::*;
use sea_orm_migration::sea_query::extension::postgres::Type;

#[derive(Iden)]
pub enum KycStatus {
    #[iden = "kyc_status"]
    Type,
    Pending,
    Approved,
}

impl KycStatus {
    pub const fn list_variants() -> [KycStatus; 2] {
        [KycStatus::Pending, KycStatus::Approved]
    }
}

pub struct Migration;
// ...

#[async_trait::async_trait]
impl MigrationTrait for Migration {
    async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
        let mut create_kyc_status_enum = Type::create();
        create_kyc_status_enum.as_enum(KycStatus::Type).values(KycStatus::list_variants());
        manager.create_type(create_kyc_status_enum).await?;
        // ...
        Ok(())
    }
    // ...
}

Digging a little bit, I found this commented variant of TypeAs enum:

sea-query/src/extension/postgres/types.rs

Line 63 in 3cb9247

// Composite,

Let me know, if there are any existing solutions for this.

Originally posted by @PreetamSing in #612