Apache Solr Reference Guide Covering Apache Solr 6.0

set
Modifier
Usage
Set or replace the field value(s) with the specified value(s), or remove the values if 'null' or
empty list is specified as the new value.
May be specified as a single value, or as a list for multivalued fields
add
Adds the specified values to a multivalued field.
May be specified as a single value, or as a list.
remove
Removes (all occurrences of) the specified values from a multivalued field.
May be specified as a single value, or as a list.
removeregex
Removes all occurrences of the specified regex from a multiValued field.
May be specified as a single value, or as a list.
inc
Increments a numeric value by a specific amount.
Must be specified as a single numeric value.
The core functionality of atomically updating a document requires that all fields in your schema must be
configured as stored="true" except for fields which are destinations -- which must be
configured as stored="false". Atomic updates are applied to the document represented by the existing
stored field values. If destinations are configured as stored, then Solr will attempt to index
both the current value of the field as well as an additional copy from any source fields.
For example, if the following document exists in our collection:
{"id":"mydoc",
"price":10,
"popularity":42,
"categories":["kids"],
"promo_ids":["a123x"],
"tags":["free_to_try","buy_now","clearance","on_sale"]
}
And we apply the following update command:
{"id":"mydoc",
"price":{"set":99},
"popularity":{"inc":20},
"categories":{"add":["toys","games"]},
"promo_ids":{"remove":"a123x"},
"tags":{"remove":["free_to_try","on_sale"]}
}
The resulting document in our collection will be:
Apache Solr Reference Guide 6.0
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