CreateQuery shard_1 data_02346 (children 4)
 Identifier shard_1
 Identifier data_02346
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration x (children 1)
    DataType UInt32
   ColumnDeclaration y (children 1)
    DataType String
 Storage definition (children 3)
  Function MergeTree
  Identifier x
  Set
