question: gets the data type of this field . data type only ; not full datatype descriptor . concode_field_sep SqlIntervalQualifier intervalQualifier concode_elem_sep Integer precision concode_elem_sep Boolean isNullable concode_elem_sep String name concode_elem_sep Integer scale concode_elem_sep List<String> workspaceSchemaPath concode_elem_sep List<FieldType> fields concode_elem_sep SqlTypeName type concode_elem_sep String sql concode_field_sep String getName concode_elem_sep String getName concode_elem_sep boolean isDynamic concode_elem_sep List<String> getWorkspaceSchemaPath concode_elem_sep SqlIntervalQualifier getIntervalQualifier concode_elem_sep boolean hasStar concode_elem_sep TimeUnit getEndUnit concode_elem_sep RelDataType getRowType concode_elem_sep Integer getPrecision concode_elem_sep void setSql concode_elem_sep String getSql concode_elem_sep Integer getFractionalSecondPrecision concode_elem_sep TimeUnit getStartUnit concode_elem_sep List<FieldType> getFields concode_elem_sep Integer getScale concode_elem_sep Boolean getIsNullable
target: SqlTypeName function ( ) { return type ; }