zeroshade commented on code in PR #3297:
URL: https://github.com/apache/arrow-adbc/pull/3297#discussion_r2283053343


##########
go/adbc/driver/bigquery/record_reader.go:
##########
@@ -73,6 +73,12 @@ func runQuery(ctx context.Context, query *bigquery.Query, 
executeUpdate bool) (b
        // If there is no schema in the row iterator, then arrow
        // iterator should be empty (#2173)
        if iter.TotalRows > 0 {
+               if !iter.IsAccelerated() {
+                       return nil, -1, adbc.Error{
+                               Code: adbc.StatusUnauthorized,
+                               Msg:  "[bigquery] Arrow reader requires 
roles/bigquery.readSessionUser, see 
https://github.com/apache/arrow-adbc/issues/3282";,
+                       }
+               }

Review Comment:
   can we add a comment or otherwise document how `IsAccelerated` translates to 
`readSessionUser`?



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