Laurent Goujon created CALCITE-1442:

SqlIntervalQualifer#getFractionalSecondPrecisionPreservingDefault() returns the 
wrong field
                 Key: CALCITE-1442
             Project: Calcite
          Issue Type: Bug
            Reporter: Laurent Goujon
            Assignee: Julian Hyde
            Priority: Minor

Unless I'm wrong, I believe 
{{SqlIntervalQualifer#getFractionalSecondPrecisionPreservingDefault()}} returns 
the wrong field:

  public int getFractionalSecondPrecision(RelDataTypeSystem typeSystem) {
    if (fractionalSecondPrecision == RelDataType.PRECISION_NOT_SPECIFIED) {
      return typeName().getDefaultScale();
    } else {
      return fractionalSecondPrecision;

  public int getFractionalSecondPrecisionPreservingDefault() {
    if (useDefaultFractionalSecondPrecision()) {
      return RelDataType.PRECISION_NOT_SPECIFIED;
    } else {
      return startPrecision;

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