[GitHub] [beam] youngoli commented on pull request #16818: [BEAM-13806] Add x-lang BigQuery IO integration test to Go SDK.

[GitBox <gi...@apache.org>]

youngoli commented on PR #16818:
URL: https://github.com/apache/beam/pull/16818#issuecomment-1146363217

   I added a test that reads from a Query, and while testing in my own environment I'm getting weird results. The elements output from a query read have all fields as pointers because SQL queries don't match the table's schema. That's pretty normal. But when I made an equivalent struct in Go, I get errors when decoding into that struct, even though all the fields seem to be matching exactly:
   ```
   panic: reflect: Call using struct { Counter *int64 "beam:\"counter\""; Rand_data *struct { Flip *bool "beam:\"flip\""; Num *int64 "beam:\"num\""; Word *string "beam:\"word\"" } "beam:\"rand_data\"" } as type bigquery.TestRowPtrs
   Full error:
   while executing Process for Plan[s08-67]:
   2: DataSink[S[ptransform-65@localhost:12371]] Coder:W;coder-80<LP;coder-81<R[bigquery.TestRow]>>!GWC
   3: PCollection[pcollection-72] Out:[2]
   4: ParDo[bigquery.ReadFromQueryPipeline.func1] Out:[2]
   1: DataSource[S[ptransform-64@localhost:12371], 0] Coder:W;coder-76<LP;coder-77<R[struct { Counter *int64 "beam:\"counter\""; Rand_data *struct { Flip *bool "beam:\"flip\""; Num *int64 "beam:\"num\""; Word *string "beam:\"word\"" } "beam:\"rand_data\"" }]>>!GWC Out:4
   	caused by:
   panic: reflect: Call using struct { Counter *int64 "beam:\"counter\""; Rand_data *struct { Flip *bool "beam:\"flip\""; Num *int64 "beam:\"num\""; Word *string "beam:\"word\"" } "beam:\"rand_data\"" } as type bigquery.TestRowPtrs goroutine 60 [running]:
   runtime/debug.Stack()
   ...
   ```


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: github-unsubscribe@beam.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org