Invalid OID Handling in SQLAlchemy with asyncpg and autoload_with Causes DataError

Describe the bug

I encountered an issue when using SQLAlchemy with asyncpg and the autoload_with option while trying to load table metadata. The problem occurs because PostgreSQL's oid type is treated as a signed 32-bit integer (int32) by asyncpg, which leads to a DataError when the OID value exceeds the maximum range of int32 (2,147,483,647).

Steps to Reproduce

1. Create a PostgreSQL table with an OID that exceeds the int32 range. For example, an OID like 3195477613.
2. Use SQLAlchemy to define the table with autoload_with to load metadata:

from sqlalchemy import Table, MetaData

metadata = MetaData()
table = Table("master_product_view", metadata, autoload_with=conn)

3. Execute the code.

Observed Behavior

The following exception is raised during metadata loading:

sqlalchemy.exc.DBAPIError: (sqlalchemy.dialects.postgresql.asyncpg.Error) <class 'asyncpg.exceptions.DataError'>: invalid input for query argument $1: 3195477613 (value out of int32 range)

Expected Behavior

The autoload_with option should correctly handle OID values, even if they exceed the int32 range.

asyncpg/SQLAlchemy Version in Use

asyncpg 0.30.0
sqlalchemy 1.4.54

Database Vendor and Major Version

PostgreSQL 14

Python Version

3.13

Operating system

Linux

Non sono indicati né un file sorgente né un test. Inizia riproducendo il caricamento dei metadati di SQLAlchemy Table(..., autoload_with=conn) su PostgreSQL 14 con asyncpg 0.30.0 e l’OID segnalato, quindi traccia la gestione del parametro OID. Il lavoro è completato quando il caricamento dei metadati riesce per OID superiori all’intervallo int32 senza DataError.