+1 (shouldn't I just vote on the Jira for this?)
manuel > -----Original Message----- > From: Kasper Sørensen [mailto:[email protected]] > Sent: Friday, August 09, 2013 9:03 > To: [email protected] > Subject: Re: [DISCUSS] use folder name as schema name for file based > DataContexts > > Allow me to bump this issue (it's my impression that more people have joined > in a bit late, after this topic was posted). > > I think this is one of the more important issues that I would want to fix > before we make our first release at Apache. > > 2013/7/24 Kasper Sørensen <[email protected]>: > > Right now we have this slightly odd naming convention for schema and > > table names when building metadata for e.g. a CSV file or a fixed > > width value file. > > > > Schema name: The filename, including file extension. > > Table name: The filename without extension. > > Resulting in e.g. a column path like this: people.csv.people.name > > > > I suggest we change it to this convention: > > > > Schema name: Folder name > > Table name: The filename, including file extension. > > Resulting in e.g. a column path like this: documents.people.csv.name > > > > Why do I think this would be an improvement? > > > > 1) Because this would first of all make a kind of sense to the user to > > see the file system's hierarchy reflected in the schema model. > > 2) Because it allows us to make these DataContext's operate not on a > > single file, but on a directory of files. I have seen this quite a > > number of times by now that users of MetaModel, or users of e.g. > > DataCleaner, which uses MetaModel quite heavily, wants to do this sort of > stuff. > > 3) The removing of the file extension stuff is kind of broken and a > > strange convention in the first place. > > > > While this doesn't really break backwards compatibility in terms of > > Java code, it would break configuration files and other stuff of > > applications that use MetaModel. But I do believe that can be > > communicated and handled through carefully explaining the new > > convention on the migration page (that I recently started writing [1]). > > > > What do you think? > > > > [1] http://wiki.apache.org/metamodel/MigratingFromEobjectsMetaModel
