The table "custom" is defined below.
The "id" column and "introducer" column are of INTEGER type, and the "email" column is of TEXT type. id | email | introducer
----+-----------------+------------
2 | [email protected] | 1
3 | [email protected] | 2
4 | [email protected] | 2
Three SQL statements were executed in the following order: UPDATE custom SET email = '' FROM custom c WHERE custom.introducer = c.id; UPDATE custom SET introducer = NULL WHERE introducer NOT IN
(SELECT id FROM custom); DELETE FROM custom WHERE id = 2 OR introducer = 2;
Select the number of rows in the "custom" table after the execution.