CreateQuery test_table (children 3)
 Identifier test_table
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration v1 (children 2)
    DataType String
    Function STATISTICS (children 1)
     ExpressionList (children 1)
      Function uniq
   ColumnDeclaration v2 (children 2)
    DataType UInt64
    Function STATISTICS (children 1)
     ExpressionList (children 1)
      Function tdigest
   ColumnDeclaration v3 (children 1)
    DataType String
 Storage definition (children 3)
  Function MergeTree
  Identifier id
  Set
