Workaround For Multi Select List Types In Trigger

[kpcollier]

Does anyone have a workaround for getting the value of a List DataType to insert into a new table via trigger? 

[Hastur]

@kpcollier

Hello!
As I know, there is no any workaround on this case.
However, you can use additional table to create many to many relationship and use the values from this additional table as the set to be copied by trigger.

Example:
Each table from example contains 2 fields.

You have some users:
1 - Andy
2- Mark

You have some categories:
a - cat_1
b - cat_2
c - cat_3

Connection table with id's from previous tables should look like: 
1 -a
1- b
1- c
2 - a
2 - b
2 - c

You can create the trigger to copy entire categories set and insert in in the connection table with id of newly inserted user.