CreateQuery view (children 3)
 Identifier view
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 3)
     Identifier a.b.c (alias a)
     Identifier json.x.y (alias x)
     Function CAST (alias z) (children 1)
      ExpressionList (children 2)
       Identifier json.z
       Literal \'UInt32\'
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier src
 ViewTargets
