CreateQuery shard1 (children 3)
 Identifier shard1
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration id (children 1)
    DataType Int32
 Storage definition (children 2)
  Function MergeTree
  Function cityHash64 (children 1)
   ExpressionList (children 1)
    Identifier id