It looks to me like the showItems argument for the fieldValueCache is not used.
I can’t find any documentation of it, although it was mentioned in the
changelog for v8.1.0.
I looked through the source and I can’t see where the value is used. It gets a
default value, but never seems to be used, based on my understanding of the
source code.
$ grep -w showItems -R .
./solr/core/src/java/org/apache/solr/core/SolrConfig.java:
args.put("showItems", "-1");
./solr/core/src/java/org/apache/solr/search/SolrCache.java: String
SHOW_ITEMS_PARAM = "showItems";
./solr/core/src/test-files/solr/configsets/exitable-directory/conf/solrconfig.xml:
showItems="0" />
./solr/server/solr/configsets/_default/conf/solrconfig.xml:
showItems="32" />
./solr/server/solr/configsets/sample_techproducts_configs/conf/solrconfig.xml:
showItems="32" />
./solr/CHANGES.txt:* SOLR-13432: Add .toString methods to BitDocSet and
SortedIntDocSet so that enabling "showItems" on the filter caches
$ grep -w SHOW_ITEMS_PARAM -R .
./solr/core/src/java/org/apache/solr/search/SolrCache.java: String
SHOW_ITEMS_PARAM = "showItems”;
Is it a leftover from long ago? If so, I’ll put in a patch to remove its last
vestiges from the source and from the sample config files.
Thanks,
Andy
