2) Fix an issue where length and precision are not removed from table/column dialog. Fixes#4964.
3) Fix an issue where the Interval data type is not displayed in the properties dialog of table/column. Fixes#4965.
4) Fix an issue where the wrong type is displayed when changing the datatype from timestamp with time zone to timestamp without time zone. Fixes#4761.
5) Change the label from 'Length and Precision' to 'Length/Precision and Scale' for columns.
6) The maximum length for datatype like interval, timestamp with time zone, time with time zone, etc.. is 6. Set the max length to 6 instead of 10.
