Github user LosD commented on a diff in the pull request: https://github.com/apache/metamodel/pull/153#discussion_r130068661 --- Diff: core/src/main/java/org/apache/metamodel/convert/Converters.java --- @@ -188,7 +191,7 @@ private static void autoDetectConvertersInternally(DataContext dataContext, Tabl detectors.put(column, new ColumnTypeDetector()); } - Query query = dataContext.query().from(table).select(columns).toQuery(); + Query query = dataContext.query().from(table).select(columns.toArray(new Column[columns.size()])).toQuery(); --- End diff -- Same extra toArray here (just marking them in case I'm right that we can avoid them).
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