By schema-less, do you mean that it's possible that every new record in the database could have a few attribute-values that no other record has, or that you simply don't know what your attributes are at this time but at some point you will know them all?
If by schemaless you mean the arbitrary name/attribute pairs, you could simply use SQL, with an "attribute" table with "name" and "value", and "nodeid" columns.
Comments
Yes, that's true. But I still have a requirement for a schemaless db, so sql doesn't cut it.
By schema-less, do you mean that it's possible that every new record in the database could have a few attribute-values that no other record has, or that you simply don't know what your attributes are at this time but at some point you will know them all?
If by schemaless you mean the arbitrary name/attribute pairs, you could simply use SQL, with an "attribute" table with "name" and "value", and "nodeid" columns.