GH-670 Include the OID explicitly in the SELECT clause

[HyunSangHan]

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Issue description

• This change addresses a compatibility issue with PostgreSQL 11.
• In PostgreSQL 11, the oid column is considered a system column and is not included by default in SELECT * queries. As a result, the query must explicitly specify the oid field to retrieve it. This change updates the query to ensure the oid is selected explicitly for proper behavior across PostgreSQL versions.

New Public APIs

None.

Additional context

• No other functional changes were introduced.

• Closes Postgres 11 compatibility issue in PostgresTypes class - similar to #657 #670