As with sets, we can directly specify the entire contents of a list, overwriting the current contents:
UPDATE "user_status_updates" SET "shared_by" = ['bob'] WHERE "username" = 'alice' AND "id" = 76e7a4d0-e796-11e3-90ce-5f98e903bf02;
The literal for a list is just like that of a set, except that square brackets are used instead of curly braces. This, of course, is the syntax for array literals in a wide variety of programming languages.
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