Hi all.
Suppose you have a text index with a field used for deduplication, and then
you later add a second field with further information that might also be used
for deduplication. We'll call them A and B for the sake of brevity.
If I have only a current text index, then I can use (a:foo AND b:bar) to
deduplicate. However, I still want to deduplicate between the older ones
which don't have B and the new ones which do.
Is there a way I can do a query which will:
- Match a document if both a:foo and b:bar are matched
- Match a document if a:foo matches and b is absent, or vice versa.
- Not match a document if both a:foo and b:foo are absent
- Not match a document if either a:foo or b:foo are present and do not
match ?
If not, I suppose I'll have to go with the lowest common denominator approach
and find out which fields are present in every index.
Daniel
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