Performance issue where `connection.createArrayOf` always queries database to resolve `typeName`

In v0.8.9, every invocation of the `PGDirectConnection#createArrayOf` method queries the database to resolve the `typeName` string to an oid which is then looked up in the `SharedRegistry` instance. When executing a large batch of queries utilizing array parameters, this extra query per invocation is causing significant and noticeable unnecessary overhead.