CreateQuery table1 (children 3)
 Identifier table1
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration id2 (children 1)
    DataType Int64
   ColumnDeclaration val (children 1)
    DataType String
 Storage definition (children 2)
  Function MergeTree
  Identifier id2
