[BUG] Isolation Level Constants

[BrendanC23]

The documentation says that the transaction isolation level constants "can be accessed through the base exported package":

• odbc.SQL_TXN_READ_UNCOMMITTED
• odbc.SQL_TXN_READ_COMMITTED
• odbc.SQL_TXN_REPEATABLE_READ
• odbc.SQL_TXN_SERIALIZABLE

The documentation has an example of

await connection.setIsolationLevel(odbc.SQL_TXN_READ_COMMITTED);

When I do

import odbc from "odbc";

console.log(odbc);

I get this output:

{
  // Other fields
  SQL_TXN_READ_UNCOMMITTED: 1,
  SQL_TRANSACTION_READ_UNCOMMITTED: 1,
  SQL_TXN_READ_COMMITTED: 2,
  SQL_TRANSACTION_READ_COMMITTED: 2,
  SQL_TXN_REPEATABLE_READ: 4,
  SQL_TRANSACTION_REPEATABLE_READ: 4,
  SQL_TXN_SERIALIZABLE: 8,
  SQL_TRANSACTION_SERIALIZABLE: 8
}

The odbc object has the constants. However, the odbc TypeScript types do not contain the constants. This results in the error Property 'SQL_TXN_SERIALIZABLE' does not exist on type 'typeof odbc'. The constants are not defined in the odbc.d.ts file, which makes calling setIsolationLevel in a typesafe manner difficult.