CreateQuery foo (children 3)
 Identifier foo
 Columns definition (children 2)
  ExpressionList (children 1)
   ColumnDeclaration key (children 1)
    DataType int
  ExpressionList (children 1)
   Index (children 2)
    Identifier key
    Function minmax (children 1)
     ExpressionList
 Storage definition (children 2)
  Function MergeTree (children 1)
   ExpressionList
  Identifier key
