SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 3)
    Identifier value
    Function multiIf (children 1)
     ExpressionList (children 5)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier value
        Literal UInt64_1
      Literal UInt64_2
      Identifier value
      Literal UInt64_1
      Literal UInt64_0
    Function if (children 1)
     ExpressionList (children 3)
      Identifier value
      Literal UInt64_1
      Literal UInt64_0
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_jit_nonnull