CreateQuery 03636_data_pk (children 4)
 Identifier 03636_data_pk
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration ts (children 1)
    DataType DateTime
 Storage definition (children 2)
  Function MergeTree
  Function toStartOfDay (children 1)
   ExpressionList (children 1)
    Identifier ts
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 1)
    ExpressionList (children 1)
     Literal UInt64_1756882680
