Columns can be renamed or removed. To do this, one can use the remove_column, remove_columns, keep_columns and rename_column methods. For example, to rename a column time to space, one can use:
>>> t.rename_column('time','space')
The keep_columns essentially acts in the opposite way to remove_columns - it is used to specify which subset of the columns to not remove, which can be useful for extracting specific columns from a large table. For more information, see the Full API for Table class.
To sort a table, use the sort() method, along with the name of the column to sort by:
>>> t.sort('time')
Given two Table instances with the same column metadata, and the same number of columns, one table can be added to the other via the append method:
>>> t1 = Table(...)
>>> t2 = Table(...)
>>> t1.append(t2)