column_name,column_description
Id,"unique id number
that identifies methods"
Name,name of methods 
FullComment,full comment of this method
Summary,summary of the method
ApiCalls,linearized sequenced of API calls
CommentIsXml,whether the comment is XML format or not
SampledAt,the time of sampling
SolutionId,id number of solutions
Lang,language code of method
NameTokenized,tokenized name