Hi all,
has anyone run into the problem of updating a document field, but only
if not already present? TFM @
https://solr.apache.org/guide/8_11/updating-parts-of-documents.html has
"set", "add", and "add-distinct" as update commands.
I have a subset of documents where a single-valued field is NULL in the
main source table and needs to be filled in from a different query that
is kind of a pain to write because of all the "not in"s and "row_index()
over"s clauses I'd have to have in it.
It'd be much easier if "set-if-not-exists" update command could be ran
on Solr side. Anyone knows if that can be done? (Solr 8.11)
TIA
Dima
