In a terminal clause, the value is the text following the operator:
<Field> <operator> <Value/Values/SubSelect>
A value can be on the following types:
Individual values can be enclosed within single or double quotes, or if they are a single word or number, then you can leave the quotes off altogether.
In addition, wherever a quoted/unquoted value may appear, you can also use a function, functions can be identified by the fact that they end with a set of Parentheses () containing 0 or more values (arguments).
An example of function is this common query:
EntityType = ScriptAssignment AND AssignedTo = CurrentUser()
In this case "CurrentUser" is a function within TQL that returns the currently logged in user. See here for a list of all functions.
Single quoted value:
Name ~ 'login bug'
Double quoted value:
Name ~ "login bug"
Name ~ bug
Name ~ "'login bug'"
List of unquoted values:
Priority IN [High,Medium,Low]
List of mixed values:
Status IN [Open, Closed, 'Re Opened']
List of mixed values including function call:
Editor IN [UserA, 'Joe Blogs', ProjectManager('Project X')]