If I have 5 csv files in aws s3 storage, where one has schema slightly different from other 4, and I have a crawler that makes a schema for me, and "Create a single schema for each S3 path" is marked in crawler settings, how many tables will I get as a result, 5 or just 2, or 1? I mean, in this case, will crawler make a separate table for each file, even there are 2 groups of schemas, or it is smart enough to group schemas and output just 2 tables? Or even 1? An example doc suggests that there should be 1 output table for all 5 files, but I don't see this behavior, and I don't understand why.