It Depends (tm).
See: SOLR-12598 for details. The short form is that as of Solr 7.5, Solr
attempts to do the most efficient thing possible when fetching fields to return
to the client.
1> if all requested fields are docValues, return from docValues.
2> if _any_ field is stored, return from the
On 2/26/2019 1:34 AM, Saurabh Sharma wrote:
Now we want to do partial updates.I went through the documentation and
found that all the fields should be stored or docValues for partial
updates. I have few questions regarding this?
1) In case i am just fetching only 1 field while making query.What
Hi Saurabh,
DocValues can be used for retrieving field values (note that order will not be
preserved in case of multivalue field) but they are also stored in files, just
different structures. Doc values will load some structure in memory, but will
also use memory mapped files to access values (n
Hi Emir,
I had this question in my mind if I store my only returnable field as
docValue in RAM.will my stored documents be referenced while constructing
the response after the query. Ideally, as the field asked to return i.e fl
is already in RAM then documents on disk should not be consulted for t
Hi Saurabh,
Welcome to the channel!
Storing fields should not affect query performances directly if you use lazy
field loading and it is the default set. And it should not affect at all if you
have enough RAM compared to index size. Otherwise OS caches might be affected
by stored fields. The bes
