What's the true term in codeql?

[Gao-Chuan]

I wanna do this:

  from Call c, Expr guard
  where
  exists(Expr e| 
    guard = callCheck(e, 0) and
    DataFlow::localFlow(DataFlow::exprNode(c), DataFlow::exprNode(e))
  ) and true

   select guard.getLocation(), guard.toString()

I've searched the document but can't find a term means logic true.

Current code has such error, and I totally understand why I have this error:

ERROR: Expected a term but found an expression instead 

I want to know how to do a search like XXX and true

[Gao-Chuan]

I need the true because I'm trying to automatically generate queries.

[intrigus-lgtm]

Try any().

[Gao-Chuan]

Try any().

Well currently I'm using an ugly 1=1.

[aibaars]

1=1 works indeed, but best use any() as @intrigus-lgtm suggested. The opposite of any() is none() in case you need to generate a sequence of or terms.