CreateQuery cool_table (children 3)
 Identifier cool_table
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration n (children 1)
    DataType Nested (children 1)
     ExpressionList (children 2)
      NameTypePair n (children 1)
       DataType UInt64
      NameTypePair lc1 (children 1)
       DataType LowCardinality (children 1)
        ExpressionList (children 1)
         DataType String
 Storage definition (children 2)
  Function MergeTree
  Identifier id
