CreateQuery test_insert_t2 (children 3)
 Identifier test_insert_t2
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration dt (children 1)
    DataType Date
   ColumnDeclaration uid (children 1)
    DataType String
 Storage definition (children 4)
  Function MergeTree
  Function toYYYYMMDD (children 1)
   ExpressionList (children 1)
    Identifier dt
  Identifier uid
  Set