TOKEN sequin_cdc APPEND DESCRIPTION > free_trials CDC events from Sequin (Postgres → Tinybird via WAL). action = insert | update | delete | read (read = initial backfill row). SCHEMA > `id` String `json:$.id`, `created_at` Int64 `json:$.created_at`, `internal_product_id` Nullable(String) `json:$.internal_product_id`, `duration` String `json:$.duration`, `length` Nullable(Float64) `json:$.length`, `unique_fingerprint` UInt8 `json:$.unique_fingerprint`, `is_custom` UInt8 `json:$.is_custom`, `card_required` UInt8 `json:$.card_required`, `__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"