Evgeniy Strokin wrote:
If I make one of my field as a unique ID, id doesn't increase/decrease
performance of searching by this field. Right?
For example if I have two fields, I know for sure both of them are unique, both
the same type, and make one of them as a Solr Unique ID. The general
performance should be the same if I want to retrieve a document by first field
or by the second.
Am I correct? Any general ideas or comments on this topic would be helpful to
better understand how unique ID works.
correct - search performance only depends on the lucene index
characteristics.
The field you declare as: uniqueKeyid/uniqueKey is just a marker to
solr to say what field it should use to check if the document overwrites
another one.
From the searching side, there is nothing special about the uniqueKey
field, it is only for /update that it gets used.
ryan
