CreateQuery size_hint (children 3)
 Identifier size_hint
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration s (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType String
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  Set
