feat(bigquery): improve error when reading null values #6566
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Aug 27, 2022
| @@ -455,6 +455,10 @@ func runOps(ops []structLoaderOp, vstruct reflect.Value, values []Value) error { | |||
| err = setRepeated(field, values[op.valueIndex].([]Value), op.setFunc) | |||
| } else { | |||
| err = op.setFunc(field, values[op.valueIndex]) | |||
| if errors.Is(err, errNoNulls) { | |||
| f := vstruct.Type().FieldByIndex(op.fieldIndex) | |||
| err = fmt.Errorf("bigquery: NULL cannot be assigned to field `%s` of type %s", f.Name, f.Type.Name()) | |||
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A thing to keep an eye on for the future is whether we should have a custom error type. My suspicion is this isn't a frequent enough failure to warrant custom errors at this point, nor is it super actionable unless you're dynamically rewriting things.
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This was referenced Sep 13, 2022
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Improve error message when reading NULL values from a query and trying to fit into a struct field.
Resolves #2612