SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 3)
    Function arrayJoin (alias browser) (children 1)
     ExpressionList (children 1)
      Literal Array_[UInt64_0]
    Function arrayJoin (alias search_engine) (children 1)
     ExpressionList (children 1)
      Function array (children 1)
       ExpressionList (children 1)
        Identifier SearchEngineID
    Identifier URL
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test.hits
   Function and (children 1)
    ExpressionList (children 4)
     Literal UInt64_1
     Function notEquals (children 1)
      ExpressionList (children 2)
       Identifier SearchEngineID
       Literal UInt64_0
     Function notEquals (children 1)
      ExpressionList (children 2)
       Identifier browser
       Literal UInt64_0
     Function notEquals (children 1)
      ExpressionList (children 2)
       Identifier search_engine
       Literal UInt64_0
 Identifier Null