Push your crawler to the cloud
crsp deploy
.
There are a few things that happen behind the scenes that you should be aware of.
crsp deploy
.
Read the changelog to learn about new features that have been recently released.
null
value for the new column.
Adding a new column is not destructive.
.describe('unique')
, then the column will first be dropped
before it is re-added with the unique constraint. The column must first be dropped because it is possible
that there already exist duplicate values within the column.
An index will be created for the column after it is re-added.
Changing a column’s constraints is destructive.