On Mon, 30 Aug 2004, LeVan,Ralph wrote:
>> From: Robert Sanderson [mailto:[log in to unmask]]

>> Jeff's original plan was to have oai.identifier, oai.datestamp and
>> oai.set, but recently we've talked about dc.identifier with a scope
>> of record metadata (as opposed to OAI's use of 'metadata' meaning record)

> I really don't like the "metadata" qualifier. It's confusing and starts us
> down a slippery slope of defining the difference between data and metadata,
> especially when the data IS metadata. The OAI identifier and the DC
> identifier might or might not be the same. Let's not confuse them
> unnecessarily.

Then for every index we need a second context set which says 'this is
exactly the same as context set b, but is for the metadata about the
record, not the record itself'.

So we're still defining the difference between metadata and data, but we
also have double the number of indexes. Even if this is a gross over
estimate, there will be a lot of indexes which are applicable to data and
metadata and it seems silly to duplicate them unnecessarily.

> I'm still waiting for a concrete proposal that I can object to.

New relation modifier: cql.scope
Possible values: data, metadata
Description: cql.scope sets whether the index should apply to the data in
the record (data) or metadata about the record (metadata) For example
'dc.creator any/cql.scope=metadata "sanderson"' searches for records
created by sanderson, not records that describe an item created by
sanderson.


> I'm sorry to hear about Eliot's confusion about searching on dc.title in a
> MARC database and not seeing his word in the title field. Sadly, the exact

> Eliot's real problem was that he was retrieving an incomplete record and
> couldn't see where his data came from. I'd be completely in favor of having
> a way in the Explain record to specify the schema that best returns the
> record.

Would that be different from the default recordSchema? I guess you might
want to default to something simple and return the full record only on
request.

Rob

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