packages/adapter-mssql/src/mssql.ts (1)

81-90: ⚠️ Potential issue | 🔴 Critical

Bug: double error wrapping in performIO override.

super.performIO (lines 50–63) already catches errors and calls this.onError(e), which throws a DriverAdapterError. The catch block here (line 85–86) catches that already-wrapped DriverAdapterError and feeds it through this.onError(e) a second time, applying convertDriverError to a DriverAdapterError instead of a raw mssql error. Remove the catch block—the finally alone is sufficient to release the mutex, and the error will propagate correctly.

Proposed fix

   async performIO(query: SqlQuery): Promise<ArrayModeResult> {
     const release = await this.#mutex.acquire()
     try {
       return await super.performIO(query)
-    } catch (e) {
-      this.onError(e)
     } finally {
       release()
     }
   }