feat(spannertest): Add validation of duplicated column names (#4611)

* feat(spannertest): add validation for duplicated column names * feat(spannertest): fix error message in validation of duplicated column Co-authored-by: Knut Olav Løite <koloite@gmail.com> Co-authored-by: Knut Olav Løite <koloite@gmail.com>
googleapis · Aug 16, 2021 · 84f86a6 · 84f86a6
1 parent 7d85249
commit 84f86a6
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/spanner/spannertest/db.go b/spanner/spannertest/db.go
@@ -622,6 +622,10 @@ func (t *table) addColumn(cd spansql.ColumnDef, newTable bool) *status.Status {
 		return status.Newf(codes.InvalidArgument, "new non-key columns cannot be NOT NULL")
 	}
 
+	if _, ok := t.colIndex[cd.Name]; ok {
+		return status.Newf(codes.AlreadyExists, "column %s already exists", cd.Name)
+	}
+
 	t.mu.Lock()
 	defer t.mu.Unlock()