TOKEN sequin_cdc APPEND

DESCRIPTION >
    rollovers CDC events from Sequin (Postgres → Tinybird via WAL).
    action = insert | update | delete | read (read = initial backfill row).
    No created_at — deduplication is by id + __commit_lsn.

SCHEMA >
    `id`                       String              `json:$.id`,
    `cus_ent_id`               String              `json:$.cus_ent_id`,
    `balance`                  Float64             `json:$.balance`,
    `expires_at`               Nullable(Int64)     `json:$.expires_at`,
    `usage`                    Float64             `json:$.usage`,
    `entities`                 String              `json:$.entities`,
    `__action`                 String              `json:$.__action`,
    `__commit_timestamp`       DateTime64(6)       `json:$.__commit_timestamp`,
    `__commit_lsn`             Int64               `json:$.__commit_lsn`,
    `__idempotency_key`        String              `json:$.__idempotency_key`

ENGINE "ReplacingMergeTree"
ENGINE_VER "__commit_lsn"
ENGINE_SORTING_KEY "id"
ENGINE_PRIMARY_KEY "id"